ILT Light Systems Measurement Product Catalog

ILTSYSTEMS

NIST Traceable Light Measurement Systems

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10 Technology Drive, Peabody, MA 01960978-818-6180 978-818-6181 fax

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NIST Traceable Light MeasurementSystems and Sources

ISO 9001:2000

International Light Technologies

Light without Limits.

10 Technology DrivePeabody, MA 01960978-818-6180978-818-6181 faxintl-lighttech.com

To find out how we can help you, contact us today.Call 978-818-6180 or visit us on theWebat intl-lighttech.com.

ILTSOURCES

Call for our ILT Sources Catalog for all your LEDs,technical lamps and holders.

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About International Light Technologies.International Light Technologies was formed in January, 2006, through the merger of two lead-ers in electro-optics: Gilway Technical Lamp, a full service supplier of filament lamps, LEDs, andcustom illumination systems, and International Light, the premiermanufacturer of precision NISTTraceable light measurement instruments.

Two companies, one vision.Both companies have been filling unique roles in their respective markets since the mid-60’s.Gilway has been a pioneer in bringing advanced optical source technology to manufacturers ofanalytical instruments and gas monitors, lighting and display designers, machine vision illumi-nation and many other applications from esoteric, small quantity devices to high-volume OEMs.As an authorized distributor and tech support facility for Osram/Sylvania modular systems,Gilway offers the technical depth to enable new customer designs as well as the strength todeliver competitive pricing in full production.

Providing customers over 35 years of expertise.International Light has been the most respected name in precision light measurement for 40years and knowledgeably supplies instrumentation to universities, industrial research labs, phar-maceutical companies, semiconductor and PC board manufacturers, the automotive and aero-space industries, and is a leader in UV measurement for curing coatings of all kinds as well as forgermicidal treatment of air and water.

Innovation and unsurpassed customer support.The combination of these two firms in a new facility in Peabody, MA brings their customersunparalleled resources in optical calibration, quality and product uniformity, as well as the depthof experience needed to bring the technology of light to contemporary products.

ILTSYSTEMSInternational Light Technologies

Instruments>

ILT900 Portable Spectroradiometer 5

ILT1700 Research Radiometer 9

ILT801 8-Channel Detector Acquisition System 11

ILT1400 Hand-held Radiometer/Photometer 12

ILTOPM1 Optical Process Monitor 13

ILT400 Profiling Belt Radiometer 15


ILT 70 Series 17

Applications>

Germicidal 24

LED 28

Radiometry 33

UV Curing 38

Photoresist 42

Photometry 46

Solar 52

Laser 56

Optical Radiation Hazard 60

Plant photobiology 64

Photodynamic Therapy 67

Photostability 70

Phototherapy 73

Components>

Base Detectors 79

Optical Filters 84

Input Optics 90

Accessories 94

ILT900 Accessories 97

Services>

Calibration 100

Repairs 104

Technical Specifications>

Spectral Response Graphs 106

Technical Illustrations 122

Index 128

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4 International Light Technologies 978-818-6180 intl-lighttech.com

Instruments

The most cost-effective,fully integrated CCD-basedspectroradiometer familyavailable.Aimed at both the laboratory andindustrial user, the ILT900 combinesaccuracy, ruggedness and complete usercontrol in a package designed specificallyfor radiometric use. The basic ILT900-Rincludes everything needed for the widestrange of standard measurements, and hasa large range of specialized accessories to suit the most unusual requirements. Complete withinput optics, software, cables, manuals and complete calibration, the ILT900 is ready to workright out of the box.

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ILT900CCD-Based Spectroradiometer System

S Y S T E M F E A T U R E S & B E N E F I T S

� NIST-Traceable Spectroradiometer from 220 to 1050 nm at 1 nm resolution (250 to950 nm standard calibration range). Custom calibration ranges may be available,contact our sales department for more information.

� Spectral sensitivity better than: Visible: 5 nanoWatt/cm2/nmUV/NIR: 0.1 microWatt/cm2/nm

� Stray light rejection: better than 5 x 10-4 of total integrated power per nm

� Intrinsic Repeatibility: 0.5%

� Spectral accuracy: 0.5 nm

� Radiometric accuracy: ± 3 %VIS, ± 5% UV/NIR

� Cosine Receptor accuracy:± 3% from 0 - 90°, all wavelengths

� Rugged, shock-mounted construction in dustproof die cast aluminum housing

� Temperature range: 15 - 40°C

� Standard stainless steel armored 2m coupling fiber

� 2048 element CCD with proprietary order-sorting filtration

� 16-bit conversion resolves low-level spectra on large backgrounds

� Exposure time adjustable from 1 mS to 5 S

� Data collection is software controlled or externally triggered

� USB 2.0 interface, powered by USB connection - no additional power required

� Requires:Windows 98, 2000, XP, Pentium II 300 MHz or better

Available in three models

S Y S T E M C O M P O N E N T S

ILT900This solid state 2048-element spectro-radiometer couples toall accessories via its2m fiber cable andUSB 2.0 data line.

Input OpticsChoose the SuperWideEye forIrradiance, a 2˚FOVoptic for Radiance, oreither of two spheresfor power.

SoftwareThe includedSpectriLight™ IIIcollects data andanalyze for photome-try, chromaticity, CCT,CRI, and more.

Instruments>

ILT900 Portable Spectroradiometer 5

ILT1700 Research Radiometer 9

ILT801 8-Channel Detector Acquisition System 11

ILT1400 Hand-held Radiometer/Photometer 12

ILTOPM1 Optical Process Monitor 13



ILT 70 Series 17


S U P E R W I D E E Y E I N S 1 5 0 I N S 2 5 0

Choosing the right input options.S Y S T E M D I A G R A M

The all-quartz Super WideEye has the bestbroadband accuracy of any cosine receptorcurrently offered. As seen below, its responseis within 3% of ideal for all incidence anglesfrom 0 - 90°. The PTFE diffusers offered byothers are fairly good in the blue and UV, buthave large off-axis errors in the red and NIR.The Super WideEye retains its accuracy overthe full 200 - 1100 nm range.

The INS150 is a brand-new integrating sphereoptimized for fiber coupling and high opticalefficiency. With a simple 1/4-20 thread bracket,it mounts easily on the included tripod or can bebuilt directly into the user’s system. It isequipped with a precision 1 cm2 area inputaperture, facilitating measurements of flux,irradiance, or beam candela according to CIEprocedure 127. It includes a magnetic blanchardfor quick connection of the different availableLED and lamp test fixtures.

The INS250, long a mainstay in the ILTproduct line, has been improved with a newbaffling system which mutually isolates allthree of its apertures. Its 37.5 mm (1.5”)diameter ports can accommodate highpower LED modules, as well as the full suiteof ILT detectors and spectroradiometers. Itincludes a built-in miniature incandescentsource which can be used as an on-linecalibration check and CCT reference.

The ILT900 family has a broad and expanding array of input optics carefully designed for each targetapplication. The SuperWideEye cosine receptor provides near-ideal irradiancemeasurement over the full UVto NIR spectral range. The INS150 integrating sphere strikes a graceful balance between optical efficiencyand integration accuracy to measure total power from single LEDs and small lamps, as well as beam candelaaccording to the procedures in CIE 127. The INS250 can handle higher-power devices and modules, hasmultiple, mutually isolated ports, and a built-in calibration lamp. The R2 radiance head provides radiance orluminance capability for characterizing arrays and displays, and is supported by a convenient laser targetingilluminator for precise alignment. Specialty components allow submersible use with small (5 mm diameter)apertures, or full-size Super WideEye receptors rated for underwater operation to 80 psi. Bandpass filtersand custom calibrations can be done to optimize performance in specific spectral regions, and long fiberscan be ordered for remote data acquisition.

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N O I S E A N D A C C U R A C Y

Performance

The ILT900 provides the maximum availableperformance for a CCD-based spectroradiome-ter. Careful internal baffling and selection ofinput optics balance scatter and sensitivity formost applications. For difficult measurementsin special circumstances (e.g., solar irradiance,UV leakage, NIR LED power, high-flux UV oven),the ILT900 can be set up for best results in agiven situation. Consult our specialists to deter-mine the best configuration for your needs.

N O I S E A N D A C C U R A C Y

S C A T T E R

C O N T R O L S R E A L T I M E A N A L Y S I S

NEW SpectriLight™ III Software – Control and Analysis

The NEW version of SpectriLight™ III provides easy setting of all operating controls of the ILT900spectrometer with an integrated data analysis package (previously an Excel™ export module calledSpectriLight™ Tools). The analysis package will make your spectral analysis fast and simple.Wavelength range, integration time, scan average and other controls can be easily set through pop upwindows, menus and toolbars. The analysis screens provide detailed analysis of the calibrated data.Absolute Irradiance and chromaticity are calculated instantly.

The user interface of SpectriLight™ III is very powerful and easy to use minimizing the learning curveto operate the ILT900 spectrometer. SpectriLight™ III is LabView™ based software and can be easilycustomized for specific OEM applications. For API applications, a DLL is available. Please contact ourapplications specialists who will work with you to create a package tailored to your needs.

Real Time Screen Display: Instant display ofDark, Raw Data and calibrated Irradiance,Radiance and Power data. The %T/R andAbsorption can be calculated.

Integration Time: 1 to 999 ms

Scan Average: 1 to 999

External Trigger

Peak Find

Data smoothing

Scaling and zoom capabilities

Save to ASCII Text File

Export to Excel File

Data collection mode: Single scan,Continuous scan, Pre-Programmable Timer(TimeLine)

Print output: Print Screen and Report

Power analysis: Total, Visible, UVA, UVB, UVCand Photopic.

LUX, Lumens and Radiance calculations.

Chromaticity analysis: x, y, u, v coordinatesand display in CIE color spaces.Dominant and ComplementaryWavelengthand Color Purity.

General Color Rendering Index (CRI)and 14 Special Color Rendering Indices,Correlated Color Temperature (CCT) and Duv.

ILT900

R E S O L U T I O N


Three different models.

The basic ILT900 is offered in three primaryconfigurations to best serve itsmany potential uses.

For portability and convenience there is theILT900-C, which features an integrated SuperWideEye receptor and light weight extrudedaluminum housing which can be directly tripodmounted.

For flexibility and durability there is the ILT900-R,which includes shock mounting for its optics insidea dust-proof, die cast aluminum housing and 2 mstainless-steel armored fiber cable which connectsto any of the many accessory optical inputcomponents.

For the ultimate in field deployment in demandingenvironments, there is the ILT900-W, whichcombines shock mounting with a NEMA-4 ratedenclosure and connectors rated to IP67.

Each of these three systems comes completelypackaged in its own carrying case with all softwareand included accessories to be up and runningquickly.

O P T I O N S

Many accessories to choose.

A wideband, 2° FOV radiance optic fordisplay measurement.

A battery-operated laser illuminator forprecision radiance alignment.

A high-temp receptor for monitoringUV curing levels in module assemblyand coating.

Radiance

Alignment

High Power

ILT900-C ILT900-R ILT900-W

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ILT1700Research Radiometer

FEATURING USB CONNECTIVITY

20 years of industry-leading accuracy, relia-bility, and versatility has placed the ILT1700Research Radiometer at the top of its class inprice and performance in any application.

With unmatched linearity over a 10 billion to 1measurement range the ILT1700 Research Radiometer setsthe standard for performance and NIST-traceable accuracy.Equipped to handle any application, the ILT1700 comeswithan array of advanced features in an easy-to-use packageincluding flash capability with selectable reverse bias, USB2.0 output with LabVIEW™ data acquisition software,RS232C data output, selectable autorange and relativemeasurement modes, and multiple AC or DC power optionsfor use in or out of the field.

� 10 decade measurement range

� Large array of available application specificand general purpose detectors(ORDER DETECTORS SEPARATELY)

� NIST-traceable calibration with certificate

� 0.1% linearity

� Built-in USB.2 output

� Built-in RS232-C output

� AC or DC power (external or batteries).Built-in NiCad battery charger

� Automatic ranging, zeroing, shutoff, andrelative mode (100%)

Measurement range: 0.2 picoAmps to 200 milliAmps (Optical units will depend onsensor selection). Minimum display resolution is 0.01x10-11 Amps.

Linearity: ±0.1%, ±1 digit on the top 8 decades of measurement range and ±0.2%,±1 digit on the bottom 2 decades

Refresh rate: 2 readings/second (options for 4 or 8 readings/second available)

Power: 90-130/180-240 VAC, 50-400 Hz, 8-15 VDC external or 6 internal “C” cellNiCad rechargeable batteries

Size: 3.5 inches x 8.7 inches x 9.4 inches (90 mm x 220 mm x 240 mm)

Weight: 5.1 pounds (2.3 kg)

F E A T U R E S & B E N E F I T S S P E C I F I C A T I O N S

D E T E C T O R O P T I O N S

The ILT1700 has one of the world’s largest selections ofapplication specific and general purpose preconfigureddetectors available to complete your system and can storeup to 10 calibration factors inmemory for use withmultipledetectors or individual configurations.

Applications include flash measurement, low signaldetection, LED, germicidal, UV hazard, plant photobiology,photoresist, UV curing, laser, and photostabiliy. All detectorspecifications are available on our website at www.intl-lighttech.com sorted by application or call one of ourknowledgable sales representatives to assist you in selecting the right preconfigured orcustom detector configuration for your application. See pages 79-83 for detector options.


A P P L I C A T I O N S P R I N C I P L E O F O P E R A T I O N

Radiometry

Photoresist

UV Curing

Germicidal

Phototherapy

Photometry

LED

Flash Photometry

Plant Photobiology

Optical Hazard

Solar

Photostability

Laser

Low Light

The ILT1700 is unique in its ability to handle 10 decades of dynamic range with pulsed or continuoussignals. The floating current amplifier operates with solid-state detectors or photodiodes, and cangain switch by a factor of a thousand during a single pulse. Data are displayed in scientific notation tohandle the large signal range, and can show current, optical signal, cal factor and % Full Scale. Theall-digital I/O interface now communicates using both RS232C in the common 9-pin D form factorand USB 2.0 serial protocols. With both AC and internal battery capability the lightweight ILT1700easily moves between the laboratory and the industrial floor.

Proprietary

Detector

PrecisionI/F

ConverterMicroprocessor

Display

F U N C T I O N S P A N E L C O N T R O L S

A. Most Significant Digit ButtonB. Least Significant Digit ButtonC. Data/Factor Display ButtonD. 5 Volt Bias ButtonE. Exponent ButtonF. Factor Select ButtonG. Set 100% ButtonH. Auto Range ButtonI. Power Indicator LEDsJ. Power ButtonK. Hold ButtonL. Integrate Mode ButtonM. DC Mode ButtonN. Zero ButtonO. Factor Number LCDP. Exponent LCDQ. Main LCD

1. AC Voltage Select Switch2. USB Output Connector3. 9-pin RS232C Serial Output Connector4. AC Power Cord Connector5. Power Source Select Switch6. Battery Access Pull Knob7. Detector Input Connector8. Accessory Input/Output Connector

(protective cover shown)

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ILT8018-Channel Detector Acquisition System

Advanced USB acquisition system can easilycollect data from up to eight optical detectorssimultaneously.

The powerful ILT801 8-Channel Detector Acquisition Systemwas designed to capture light measurements from up toeight International Light Technologies photodetectorssimultaneously to any USB capable PC. Any combination ofavailable detectors up to eight total may be used and can beremotely mountedwith custom cable lengths up to 100 feet.The included software* can display data in real-time andeasily export to text for further analysis in external software.

� Simultaneous monitor from 1 to 8 photodetectorsin any combination. Detectors may be remotelymounted up to 100 feet away from the ILT801 unit.(Please contact our sales department for informa-tion on available detectors or look for compatibledetectors on pages 79-83)

� Included software* displays light measurements inreal-time and can export data for easy import intomost standard analysis software such as MicrosoftExcel®

� USB 2.0 PC interface allows multiple ILT801 unitsto be monitored by the same PC. The ILT801 maybe accessed via existing local networks or remotelylocated using a wireless USB hub.

� The National Instruments LabView ®interface/driver is also included for customprogramming to facilitate easy system

Update rate: up to 1000 readings per second (software driver programmableas required

Temperature range: 10° - 50° C

Size: 90 mm x 220 mm x 240 mm (3.5 inchs x 8.7 inches x 9.4 inches)

4 Decade Dynamic Range


A P P L I C A T I O N S

Visible Light

Bilirubin

Plant Growth

Photodegradation

Photoresist

UV Curing

Solar

Power

NIR


ILT1400Hand-Held Radiometer/Photometer

A world-class, hand-held light meter with aproven 15 year record for dependability andaccuracy in themost demanding applications.

The ILT1400 is well-suited for the factory floor orthe research lab. It is completely flexible with plug-in“smart” detectors covering UV to IR wavelengths, with NISTtraceable calibrated results displayed in correct opticalunits. Input optics and filters allow you toconfigure the system to your exact needs. Easy to usecontrols and seven decade auto-ranging measurementmakes the ILT1400 the perfect choice for reliabilityand performance.

� 7 decade measurement range

� Large array of available application specific andgeneral purpose “smart”detectors.(ORDER DETECTORS SEPARATELY see pages 79-83)

� NIST-traceable calibration with certificate

� 0.2% linearity

� Exposure integration up to 24 hours

� Hand-held, battery operated portability

� Automatic ranging, zeroing, and shutoff

� Available with (ILT1400-BL) orwithout (ILT1400-A) backlit LCD

Measurement range: 100 picoAmps to 350 microAmps (Optical units will dependon detector selection). Minimum resolution: 10 picoAmps

Linearity: 0.2%, ±1 digit on the low end of the measurement range

Refresh rate: ½ second

Power: 4 “AA”alkaline batteries. Optional 110 VAC power supply is available(Order part # A516)

Chart Recorder Analog Output: 100 to 1000 mVolt, 408 impedance, autoranging

Size: 7.3 inches x 3.9 inches x 1.7 inches (185 mm x 100 mm x 43 mm)


D E T E C T O R O P T I O N S

The ILT1400 has one of the world’s largest selectionsof application specific and general purposepreconfigured detectors available to complete yourlight meter system. All ILT1400 compatible sensorsare “smart” with stored calibration information andprogrammability features. Applications includephotoresist, LED, germicidal, UV hazard, plantphotobiology, UV curing, laser, and photostabiliy. Allsensor specifications are available on our website atwww.intl-lighttech.com sorted by application or call one of our knowledgable salesrepresentatives to assist you in selecting the right preconfigured or custom sensor configurationfor your application. (ORDER DETECTORS SEPARATELY see pages 79-83)

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ILTOPM1-FOptical Process MonitorFiber Optic Input Version

The OPM Series optical process monitors aredesigned for on-line monitoring of opticalintensities in real-time applications.

The fiber-coupled version is configured with an internallymounted filter and detector allowing the optical pick-up tobe placed in environmentally harsh or sensitive environ-ments. Input light is directed onto the fiber surface at theend of the stainless-steel armored cable, and conducted tothe remotely-mounted sender. The sender has a built-inread-out as well as the electrical interface for 4-20mA oper-ation. The remote fiber pick-up can be mounted using theprovided SMA 905 adapter flange.

All fiber optic OPM1 models include: OPM1 unit, 2 meterlong fiber optic, FL fiber optic mounting flange, flashed opaldiffuser, operators manual, and NIST traceable calibration.

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+12 VDC Gnd

24 VDCPower Supply

4 - 20 mA Current Signal

OpticalInput

OPM1Transmitter

ProgrammableLogic

Controller (PLC)

Fiber Optic Input with Mounting Flange/Diffuser

Stainless steel armoredfiber optic cable- User specified length

SMA 950-compatiblepickup flange-Typical flashed opalreceptor shown

OPM1-F

Configured to monitor the irradiance inWatts/cm2 of almost any source withoutput from 400 to 1064 nm.Order part# OPM1-F

OPM1-Y

Includes our redesigned photopic filter toaccurately monitor illuminace of visiblelight sources. Readout is in foot-candles orLux (please specify)Order part# OPM1-Y

OPM1-BL

Includes a bandpass filter for monitoringthe irradiance from blue light sourcesbetween 370 and 515 nm. Readout is inWatts/cm2 .Order part# OMP1-BL

B L U E I R R A D I A N C E

I L L U M I N A N C E


ILTOPM1-DOptical Process Monitor

Remote Detector Input Version

The OPM Series optical process monitors aredesigned for on-line monitoring of opticalintensities in real-time applications.

The remote detector version is configured to accept most ofthe standard detector / receptor / filter combinations in theILT line (available separately) to allow greater flexibility intailoring the OPM1-D system to almost any monitoringapplication. The sender has a built-in read-out as well as theelectrical interface for 4-20 mA operation. The foil-shieldeddetector cable interfaces with the sender through a 6-pinmini-DIN connector set.

The OPM1-D includes: Operatorsmanual, and NIST traceablecalibration. Detector/filter/receptor combinations are avail-able separately. Several common options are shown.Contact our knowledgeable sales representatives to config-ure an OPM1-D system to your unique application.

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Narrowband 335 nm

System tailored to monitor UV curing sys-tems with an action spectrum of 335 nm.Order parts#OPM1-D & SED005/NS335/W

Low-pressure Mercury

Calibrated at 254 nm to monitor the irra-diance output of low-pressure mercurylamps inWatts/cm2

Order part#: OPM1-D & SED008/W

UVA/Visible

Configured to monitor the irradiance inWatts/cm2 of UVA through blue-visiblelight sources with output from 320 to475 nm.Order part#: OPM1-D & XRD340A

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4 - 20 mA Current SignalOpticalInput

Remote DetectorOPM1

Transmitter ProgrammableLogic

Controller (PLC)

UVA

System monitors irradiance in Watts/cm2

of almost any UVA source with outputfrom 326 to 401 nm.Order part#: OPM1-D & XRD140B

U V C U R I N G

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15

ILT400Profiling Belt Radiometer

Advanced technology delivers the highestperformance and lowest cost belt radiometeron the market.

The ILT400 profiling belt radiometer combines the all-in-one exposure, intensity and profile capability first intro-duced in the IL393 with new solid-state detector and ultra-stable amplifier technology to give lower noise, greaterspeed and higher accuracy at a price below any precisionbelt radiometer sold today. Add rechargability and theentire filter suite of the ILT400/490 line and the result isclear, that nothing comes close to the ILT400 performancecapabilities.

� Visible-blind solid state detector

� Ultra-stable amplifier

� Rechargeable (ILT400 charger included)

� Integrated exposure (J/cm2)

� Peak irradiance (W//cm2)

� Intensity profiling with auto-scale

� Baseline profile memory

� Current - baseline % difference

� NIST traceable calibration

Exposure Range: 5 mJ – 20 J/cm2

Temperature Range: 10˚ – 60˚ C Internal case temperature(greater ambient temperatures can be tolerated for short periods if the maximuminternal case temperature is not exceeded)"

Irradiance Range: 5 mW/cm2 – 20W/cm2

Accuracy: Typically better than 6%

Cosine Receptor: Integrating sphere

Display: 4 significant digits

Display Graphics: Resolves 5% of full scale (peak irradiance)

Size: 0.5 inches x 4.4 inches x 6.3 inches (12.7 mm x 111 mm x 161 mm)


S P E C T R A L R E S P O N S E


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ILT490C ILT490

ILT490Profiling Belt Radiometer

The ILT490 incorporates the measurementcapabilities and exceptional performancecriteria of the original IL390 and IL290 UVCuring Light Bug, with the improved featuresof the ILT400, including profiling, graphing,cost reduction, rechargeable batteries andA400 charger.

The ILT490 works with many lamp options from Iron doped,H and D type lamps, as well as standard UV sources.

The ILT490 all in one belt radiometer, comes in two versions:the ILT490 broadband UV for 250-400 nm, and the ILT490CUVC for 205-345 nm. (see graph below).

� NIST - traceable calibration

� Measurement spectrum matches industrystandard IL390 (ILT490) & IL290 (ILT490C)

� Built-in re-chargeable batteries(includes A400 charger)

� Integrated exposure (J/cm2)

� Peak irradiance (W/cm2)

� Intensity profiling with auto-scale

� Baseline profile memory

� Current - baseline % difference

Exposure: 5 mJ/cm2 - 20 J/cm2

Temperature Range: 10˚ – 60˚ C Internal case temperature(greater ambient temperatures can be tolerated for short periods if the maximuminternal case temperature is not exceeded)Irradiance Profile: 5 mW/cm2 – 20W/cm2

Accuracy: Typically better than +6%Cosine Receptor: Integrating sphereBelt Speed: 1 - 80 feet-per-minute (0.305 to 24.4 meters-per-minute)Display Graphics: Resolves 5% of full scale (peak irradiance)Size: 12.7 x 111 x 161 mm (.5” x 4.4” x 6.3”)

F E A T U R E S & B E N E F I T S

S P E C I F I C A T I O N S


� NIST – traceable certification

� 4½ - digit readout

� Detector can be customized:� Measurement range� Spectral range� Units of measurement

� Simple 1 – button operation

� Additional control buttons are optional such as units, peak, etc…

� Up to two LED indicators available

� Optional removable protective boot

� 9 – volt battery operated

� Intended for routine use by non- technical personnel


17

ILT70OEM Radiometer

The ILT70 OEM Radiometer is a simple, NIST-traceable,hand-held light meter, designed for routine use, thatcan be customized with application specific detectors,labeling, graphics, and colors for OEMs and resellers.

Developed to offer OEMs and resellers a versatile instrument, the ILT70OEM Radiometer is available in standard models to measure UVA, UVB(broadband or narrowband), bilirubin (in irradiance and band irradianceunits), and germicidal. Custom sensors can also be designed for measure-ments between the spectral ranges of 200 and 1,100 nm with readout inunits ofW/cm2,W/cm2/nm,W, lux, cd/m2, as well as other imperical units.

The ILT70 OEM Radiometer can be further customized with a variety offeature sets including a hold function, exposure reading, and automaticshut-off. Featuring a 4½ digit LCD that provides a direct readout, thisrugged radiometer has a low-battery indicator and protective rubber bootavailable in several colors.

The 70 Series


ILT72UVA Radiometer

The ILT72 UVA Radiometer was specificallydesigned to easily and directly measure theUVA output from various UV sources.

The detector has a spectral range of 315 to 390 nm and iscalibrated at 360 nm. The meter has a 4½ - digit displayhandling up to 19.999 mW/cm2, with true resolution of 0.01mW/cm2. Readings are taken using a single button, and themeter shuts off automatically after 2 minutes to preservethe life of the 9 volt battery. It is enclosed in a removablecushioning boot (not shown) that protects the unit fromaccidental falls and acts as an instrument stand or hanger.Each system is individually calibrated to NIST-traceablestandards and is supplied with a calibration certificate.



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� Spectral response 315 – 390 nm (10% pts.)

� Calibration at 360 nm

� Simple 1 – button operation, auto shut off


� Hold and range selection features

� 3-foot detector cable

The 70 Series

19

ILT73UVB Radiometers

The ILT73 UVB Radiometer directly measuresthe UVB output from a multitude of conven-tional UVB sources (DC – 60Hz).

The detector is filtered for a spectral range of 275 - 325 nmand comes with a calibration at 290 nm for broadband UVBsources (ILT73) or 313 nm for narrowband TL-type UVBsources (ILT73-NB). Bothmodels have ameasurement rangeof 1 – 19.99 mW/cm2. Readings are taken using a singlebutton, and the meter shuts off automatically after 2minutes to preserve the life of the 9-volt battery. The 4½ -digit meter is enclosed in a removable cushioning boot (notshown) that protects the unit from accidental falls and actsas an instrument stand or hanger. Each system isindividually calibrated to NIST-traceable standards and issupplied with an appropriate certificate.



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� Spectral response (both models):275 – 325 nm (10% pts.)

� Calibration at 290nm (ILT73) or 313 nm(ILT73-NB)


� Simple 1 – button operation, auto shut off


� Hold Feature

� ILT73-NB is designed for measurement ofTL-type UVB lamps and the ILT73 is designedfor broader UVB sources.

The 70 Series




� Spectral response 425 – 475 nm

� Calibrated in µW /cm2 and µW/cm2/nm

� Simple 2 – button operation� On/Hold� Units Select

� Removable protective boot (not shown)


� Intended for routine use in clinical settings


ILT74Bili-Light Radiometer

Verification of prescribed phototherapeutictreatment levels has become increasinglyimportant as the number and variety ofhyperbilirubinemia therapy systems hasexpanded.

The variables of lamp aging and patient distance fromthe lamp head can cause significant uncertainty in theresulting dosage.

The ILT74 Bili-Light Radiometer directly measures theexposure level in the patient plane. The detector is filtered toaccept the 425 - 475 nm action spectrum, and includes twostandard calibrations for measurement up to 1999.9µW/cm2 and 199.9 µW/cm2/nm. Readings are taken using asingle button, and the meter shuts off automatically after 2minutes to preserve the life of the 9-volt battery. The 4½ -digit meter is enclosed in a removable cushioning boot (notshown) that protects the unit from accidental falls and actsas an instrument stand or hanger. Each system isindividually calibrated to NIST-traceable standards and issupplied with an appropriate certificate.

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The 70 Series

21

� NIST – traceable calibration at 254 nm

� Measurement of Low PressureMercury Lamps ONLY

� Removable protective boot (not shown)

� Simple 1-button operation, auto shutoff

� Hold feature


� Spectral response 214 – 360 nm



ILT77Germicidal Radiometer

The use of germicidal low-pressure mercurylamps has rapidly expanded into awide arrayof industrial, commercial, and municipalapplications such as HVAC, food processing,and water treatment.

The increasing popularity of these lamp systems has createda requirement for a simple, economical, yet highly accuratemeans of monitoring the lamp output to ensure their peakgermicidal effectiveness.

The ILT77 Germicidal Radiometer was specifically designedto easily and directly measure the output from conventionallow pressure mercury germicidal lamps only. The includedXP77 detector comes with three foot cable and a teflondiffuser. The systemmeasures a spectral range of 214 to 360nm with a NIST traceable calibration. The meter has a 4½ -digit display handling up to 199.99 mW/cm2, with aresolution of 0.01 mW/cm2. Readings are taken using asingle button, and the meter shuts off automatically after 2minutes to preserve the life of the 9 volt battery. It isenclosed in a removable cushioning boot (not shown) thatprotects the unit from accidental falls and acts as aninstrument stand or hanger. Each system is individuallycalibrated to NIST-traceable standards and is supplied witha calibration certificate.



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The 70 Series

Applications

23

Our large selection of preconfigured light detectors has been broken out by general applicationto aid in selecting the right detector or detectors for the application at hand. The following is atypical example of how the detectors are listed with element explanations listed in blue.

Understanding an application specific detector listing

S Y S T E M S E L E C T I O N B Y A P P L I C A T I O N

Applications>

Germicidal 24

LED 28

Radiometry 33

UV Curing 38

Photoresist 42

Photometry 46

Solar 52

Laser 56

Optical Radiation Hazard 60

Plant photobiology 64

Photodynamic Therapy 67

Photostability 70

Phototherapy 73

NARROWBAND GERMICIDAL DETECTORConfigured specifically to measure germicidaleffectiveness at 254 nm.Measurement Range with:� ILT1400 (SEL):2.08e-6 to 2.08e-2 Watts/cm2

� ILT1700 (SED):8.00e-9 to 4.00e-3 Watts/cm2

Spectral Range:249 - 259 nm, Center wavelength at 254 nm.Spectral Graph: (reference to appendix)Footprint: (reference to appendix)Order part number: SED240/NS254/W (ILT1700) orSEL240/NS254/TD (ILT1400)Applications: Detector has a narrow bandwidth witha center wavelength at 254 nm facilitating the meas-urement of germicidal effectiveness at 254 nm frommedium-pressure mercury lamps, xenon arc lamps,mercury arc, or mercury-xenon arc lamps. Thesesources produce a broad spectral UV output withmore intense mercury lines than the output at 254nm which will cause artificially high readings fromdetectors with a broader response. This detector canbe configured with optional attenuator filters at thetime of purchase for measuring higher intensity ger-micidal UV sources. Please consult one of our knowl-edgeable sales representatives for more information.

Detector typeSummary description

Measurement rangein optical units withspecific radiometers

Spectral bandwidthin nanometers (nm)

Look in the appendix formore information

Ordering part numbersfor specific radiometers

Application-specific orgeneralized notes


Germicidal UV disinfection rapidlyreplacing traditional methods

Germicidal disinfection by exposure to ultraviolet(UV) light is seeing rapid deployment in food,pharmaceutical, hospitality, and medicalindustries throughout the world due to theeffectiveness, ease of use, adaptability, andrelatively low expense of the technology ascompared with the more complex, timeconsuming, and costly methods currently in usesuch as chemical, steam, or heat disinfection.

G E R M I C I D A L U V M E A S U R E M E N T

International Light Technologies offersa wide range of germicidal solutions

ILT offers a variety of germicidal radiometers for test-ing effective germicidal irradiance for many lamptypes including narrowband (line) 254 nm, effectivegermicidal measurements conforming to the IESLuckiesh and DIN standards, and unfiltered systemsspecifically designed for testing low pressure mercurylamps where 95% of the output is at 254 nm. ManyILT systems can be customized for use underwater. ILTalso offers a variety of input optics including rightangle micro probes, PIN probes and a variety of fiberoptics to allow sensing in small, remote and hard toreach locations.

Low pressure mercury lamps providemost germicidal “bang for the buck”

UV irradiation kills a broad range of microbes, inessence, breaking the molecular bonds that holdthe organism’s DNA together. The most effectivewavelength for accomplishing this is 263 nanome-ters (nm), however, due to the more readily avail-able and moderately effective output at 254 nmproduced by inexpensive low pressure Mercury(Hg) lamps , 254 nm has become the generallyaccepted action wavelength and low pressure Hglamps the most utilized in low to medium intensi-ty germicidal applications such as food processing,low volume water treatment, medical service, andmanufacturing. The broader spectral output andgreater intensity from medium pressure UV lampsmeans they will continue to be utilized in applica-tions requiring high intensity germicidal UV expo-sure where the large numbers of low pressure Hglamps required to meet the intensity levels wouldbe impractical due to cost and space, such as inlarge volume municipal water treatment facilities.

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G E R M I C I D A L M E A S U R E M E N T S Y S T E M S

The following detectors, except the “Complete Low-Pressure Mercury System”section, or where noted, require either an ILT1400 (SEL type detectors) orILT1700 (SED type detectors) instrument to make a complete measurementsystem. All detectors include one initial calibration. All detectors in this sectionare calibrated to measure in Watts/cm2. Additional calibrations may be pur-chased for other measurement units depending on detector type.

Complete Low-Pressure Mercury SystemPre-configured light meter kit for easy one button measurement oflow-pressure mercury light sources only.

ILT77 GERMICIDAL SYSTEMBased on the ILT70 light meter, this meter and detector combinationsystem is preconfigured to quickly and easily measure low-pressuregermicidal lamps only.Measurement Range: 1 to 199.99 mW/cm2

Spectral Range: 214 – 360 nmSpectral Graph: (page 21)Footprint: (page 21)Order part number: ILT77 (complete system)Applications: This system is designed to exclusively measure low tomedium intensity low-pressure mercury lamps only.

Effective Germicidal DetectorsDetectors in this section are designed to measure a diverse class of ger-micidal UV producing light sources including xenon arc lamps, mercuryarc lamps, high-pressure, and medium-pressure mercury lamps.

NARROWBAND GERMICIDAL DETECTORConfigured specifically to measure germicidal effectiveness at 254 nm.Measurement Range with:� ILT1400 (SEL): 2.08e-6 to 2.08e-2 Watts/cm2

� ILT1700 (SED): 8.00e-9 to 4.00e-3 Watts/cm2

Spectral Range: 249 - 259 nm, Center wavelength at 254 nm.Spectral Graph: (page 120-A1)Footprint: (66 mm x 42 mm dia)Order part number: SED240/NS254/W (ILT1700)or SEL240/NS254/TD (ILT1400)Applications: Detector has a narrow bandwidth with a center wave-length at 254 nm facilitating the measurement of germicidal effective-ness at 254 nm from medium-pressure mercury lamps, xenon arc lamps,mercury arc, or mercury-xenon arc lamps. These sources produce a broadspectral UV output with more intense mercury lines than the output at254 nm which will cause artificially high readings from detectors witha broader response. This detector can be configured with optionalattenuator filters at the time of purchase for measuring higher intensitygermicidal UV sources. Please consult one of our knowledgeable salesrepresentatives for more information.

LOW-PROFILE, HIGH-INTENSITY GERMICIDAL DETECTORConfigured specifically to measure germicidal effectiveness at 254 nmfrom a wide array of high intensity, germicidal sources.Measurement Range with:� ILT1400 (XRL): 3.33e-7 to 1.17e+0 Watts/cm2

� ILT1700 (XRD): 6.67e-9 to 6.67e+0 Watts/cm2

May also be used with the ILT801 or OPM1 for long term processmonitoring. Contact a sales engineer for range selection.Spectral Range: 249 - 259 nm, Center wavelength at 254 nm.Spectral Graph: (page 115-A1)Footprint: (page 123-B)Order part number: XRD140T254 (ILT1700, OPM1, or ILT801) orXRL140T254 (ILT1400)Applications: Detector has a narrow bandwidth with a centerwavelength at 254 nm facilitating the measurement of germicidaleffectiveness at 254 nm from high intensity germicidal UV sourcessuch as high-pressure or medium-pressure mercury lamps, xenon arclamps, mercury arc, or mercury-xenon arc lamps. These sources producea broad spectral UV output with more intense mercury lines than theoutput at 254 nm which will cause artificially high readings fromdetectors with a broader response. This detector is built into ourlow-profile XR housing for use in low clearance applications.

Effective Germicidal Detectors (continued)

EFFECTIVE GERMICIDAL DETECTORConfigured with a spectral response weighted to match the IES Luckieshand DIN standards for germicidal effectiveness.Measurement Range with:� ILT1400 (SEL): 1.49e-7 to 1.49e-3 effective Watts/cm2

� ILT1700 (SED): 5.00e-9 to 2.50e-3 effective Watts/cm2

Spectral Range: 185 – 320 nm, calibration wavelength at 270 nmSpectral Graph: (page 120-C1)Footprint: (68 mm x 42 mm dia)Order part number:SED240/ACT5/W (ILT1700) or SEL240/T2ACT5 (ILT1400)Applications: This detector has a weighted response and is specificallydesigned to measure the germicidal effectiveness of low-intensity, broadspectrum UV sources in accordance with the requirements within the IESLuckiesh and DIN standards.

Low Pressure Mercury DetectorsDetectors in this section have peak spectral response at 254 nm andare designed to measure low-pressure mercury sources only. Sincelow-pressure mercury lamps produce better than 95% of their energyat 254 nm, they are easily measured by these detectors without anyadditional filtration. All detectors in this section are calibrated tomeasure in Watts/cm2.

LOW INTENSITY, LOW PRESSURE MERCURY DETECTORConfigured to measure low intensity, low-pressure mercury lamps only.Measurement Range with:� ILT1400 (SEL): 5.00e-8 to 5.00e-4 Watts/cm2


Spectral Range: 185 – 320 nm, calibration wavelength at 254 nmSpectral Graph: (page 120-A2)Footprint: (60 mm x 42 mm dia)Order part number: SED240/W (ILT1700) or SEL240/W (ILT1400)Applications: Low intensity, low-pressure mercury sources only.

MEDIUM INTENSITY, LOW PRESSURE MERCURY DETECTORConfigured to measure more intense low-pressure mercury lamps withthe addition of an attenuator filter.Measurement Range with:� ILT1400 (SEL): 3.33e-5 to 3.33e-1 Watts/cm2


Spectral Range: 185 – 320 nm, calibration wavelength at 254 nmSpectral Graph: (page 120-B1)Footprint: (65 mm x 42 mm dia)Order part number:SED240/QNDS2/W (ILT1700) or SEL240/QNDS2/TD (ILT1400)Applications: Medium intensity, low pressure mercury sources only.

HIGH INTENSITY, LOW PRESSURE MERCURY DETECTORConfigured to measure high intensity low-pressure mercury lamps at254 nm. Detector is only available for use with our ILT1700 ResearchRadiometer.Measurement Range with:� ILT1700 (SED): 1.38e-7 to 1.38e+2 Watts/cm2

Spectral Range: 214 – 360 nm, calibration wavelength at 254 nmSpectral Graph: (page 115-A2)Footprint: (27 mm x 42 mm dia)Order part number: SED008/W (ILT1700)Applications: High intensity, low pressure mercury sources only.

Ozone/Germicidal DetectorsDetectors in this section are designed specifically to measure ozone gen-erating germicidal UV light sources at 185 nm and are calibrated tomeasure in Watts/cm2.

NARROWBAND OZONE/GERMICIDAL DETECTORConfigured to measure low intensity, ozone producing germicidal lampsat 185 nm where out of band rejection of 254 nm is critical.Measurement Range with:� ILT1400 (SEL): 4.76e-5 to 4.76e-1 Watts/cm2


Spectral Range: 165 – 200 nm, Center wavelength: 185 nmSpectral Graph: (page 120-B2)Footprint: (58 mm x 42 mm dia)Order part number:SED185/NS185 (ILT1700) or SEL185/NS185 (ILT1400)Applications: This detector by itself has peak spectral response at 185 nmbut has also been fitted with a narrow bandwidth filter facilitating themeasurement of the relatively low emissions at 185 nm from ozone pro-ducing mercury lamps with strong emissions at the 254 nm mercury line.



ECONOMY NARROWBAND OZONE/GERMICIDAL DETECTORConfigured to measure low intensity, ozone producing germicidal lamps at 185 nm where out of bandrejection of 254 nm is not as critical.Measurement Range with:� ILT1400 (SEL): 4.76e-5 to 4.76e-1 Watts/cm2


Spectral Range: 165 – 200 nm, Center wavelength: 185 nmSpectral Graph: (page 120-C2)Footprint: (58 mm x 42 mm dia)Order part number: SED220/NS185 (ILT1700) or SEL220/NS185 (ILT1400)Applications: This detector has good spectral response at 185 nm but has also been fitted with a narrowbandwidth filter with a center wavelength at 185 nm, facilitating the measurement of the relatively lowemissions at 185 nm from ozone producing mercury lamps where the strong emissions at the 254 nm mercuryline are not present.

Germicidal Spectral Measurement SystemThe ILT900 Portable Wideband Spectroradiometer System can measure the spectral output of a wide rangeof germicidal light sources in Watts per nanometer or Watts per square centimeter per nanometer. The ILT900includes an initial calibration and additional calibrations may be purchased for other measurement unitsdepending on system configuration. The ILT900 does require a personal computer.

See page 5 for more information on the ILT900 including PC requirements and specifications.

ILT900Spectroradiometer-based system for spectral analysis of most types of germicidal light sources.Spectral Range: 250 – 950 nmMeasures: Watts/cm2/nm, Watts/nm, lumens/nm, lumens/m2/nm, candela (CIE127), chromatic analysisApplications: The ILT900 out of the box can measure a wide range of germicidal UV sources as well asmany other types of UV, visible, and near-infrared sources offering a complete, turnkey spectral analysispackage for most any application.

High temperature and right-angle input optics are also available. Please see page 97for a list of accessories for the ILT900 Spectroradiometer.

27



LEDs offer many advantages overtraditional lamps

LEDs are everywhere! LEDs, short for LightEmitting Diodes, are solid-state semiconductorlight sources that are rapidly replacing traditionallamps in many applications within the aerospace,automotive, and commercial manufacturingindustries, with increasing adoption in architectur-al, commercial, and municipal lighting design. Thereasons for this change are the many advantagesLEDs impart versus traditional incandescent orneon lamps. LEDs are small in size, have low powerrequirements, high reliability, low self heating, canbe switched on or off rapidly, and they are shockresistant. As LED use increases, so too does theamount and scope of specifications writtenregarding LEDs, placing an ever increasing impor-tance on accurate verification of key output char-acteristics onto user and manufacturer alike.

L E D M E A S U R E M E N T

Meet the challenges head-on

International Light Technologies has a full comple-ment of powerful, easy to use, and highly accurateLED measurement systems and tools to meet thesechallenges head on such as the ILT900 LEDSpectroradiometer Measurement System, the mostcost effective system for measuring discrete LEDs andLED modules for spectral output, absolute intensity,total flux (power), and color. ILT also offers scannedcalibrations providing calibration factors every 2 to 10nm for the improved accuracy at specific wavelengthsoften required for LED measurements.

Challenges of LED measurement

LEDs present certain measurement challengesinherent in their design such as their narrow view-ing angle, near-monochromatic output, and limit-ed wavelength selection. This is further complicat-ed by the confusing use within the industry of var-ious measurement units for qualifying LED outputsuch as candela (both spherical and beam), can-dlepower (older term for candela), foot-candles orlux (illuminance), watts per square centimeter(irradiance), and lumens or watts (power). Color,once a subjective human perception, in anattempt to define and standardized its use, hasbecome a complicated LED specification to meas-ure with terminology like color coordinates, colortemperature, dominant/complementary wave-length, Color Rendering Index (CRI) and CorrelatedColor Temperature (CCT).

29

L E D M E A S U R E M E N T S Y S T E M S

The following detectors, except the “Spectrum/Color” section, require either an ILT1400 (SEL type detectors) orILT1700 (SED type detectors) instrument to make a complete measurement system. All detectors include one ini-tial calibration. Additional calibrations may be purchased for other measurement units depending on detectortype. The “Spectrum/Color” section lists complete ILT900 Spectroradiometer based systems (ILT900LED systemsinclude optional input optics where noted).

Power/Spherical Intensity DetectorsMeasurement in Total Flux (Total Flux or Power is measured in Watts or Lumens) or Watts per steradian,Candela (Candlepower) for spherical intensity.

UV ENHANCED RADIANT POWER DETECTORIncludes 10-Inch integrating sphere for measuring UV radiant powerMeasurement Range with:� ILT1400 (SEL): 5.00e-6 to 5.00e-2 Watts� ILT1700 (SED): 1.00e-7 to 5.00e-2 WattsSpectral Range: 185-310 nmSpectral Graph: (page 121-A1)Footprint: (page 124-C, sphere)Order part number: SED240/INS250 (ILT1700) or SEL240/INS250 (ILT1400)Applications: Typically used for measuring UV LEDs and LED modules and small UV lamps for total flux(power) output in Watts.

See page 92 for more information on the INS250 Integrating Sphere


Power/Spherical Intensity Detectors (continued)

RADIANT POWER/RADIANT SPHERICAL INTENSITY DETECTORIncludes 10-Inch integrating sphere for measuring radiant power or radi-ant spherical intensity.Measurement Range with:� ILT1400 (SEL): 3.30e-7 to 1.10e+0 Watts� ILT1700 (SED): 6.60e-9 to 6.60e+0 Watts.Spectral Range: 400 - 1064 nmSpectral Graph: (page 109-A1)Footprint: (page 124-C, sphere)Order part number:SED033/F/INS250 (ILT1700) or SEL033/F/INS250 (ILT1400)Applications: Typically used for measuring higher power LEDs, LEDmodules and small lamps for total flux output in Watts. This detector canalso be calibrated to measure radiant spherical intensity inWatts/steradian.


PHOTOPIC POWER/LUMINOUS SPHERICAL INTENSITY DETECTORIncludes 10-Inch integrating sphere for measuring photopic power orluminous spherical intensity.Measurement Range with:� ILT1400 (SEL): 2.50e-4 to 8.70e+2 Lumens� ILT1700 (SED): 5.00e-5 to 5.00e+3 LumensSpectral Range: 400 - 700 nmSpectral Graph: (page 109-A2)Footprint: (page 124-C, sphere)Order part number:SED033/Y/INS250 (ILT1700) or SEL033/Y/INS250 (ILT1400)Applications: Typically used for measuring higher power LEDs, LEDmodules, and small lamps for photopic total flux output in Lumens. Canalso be calibrated to measure luminous spherical intensity in Candela(Candlepower).


MINIATURE RADIANT POWER/RADIANT SPHERICAL INTENSITY/IRRADIANCE DETECTORPen probe detector has built-in miniature integrating sphere with 5mmaperture for measuring radiant power, radiant spherical intensity, or irra-diance.Measurement Range with:� ILT1400 (SPL): 1.25e-7 to 4.38e-1 Watts� ILT1700 (SPD): 2.50e-9 to 2.50e+0 WattsSpectral Range: 400 - 1064 nmSpectral Graph: (page 115-B1)Footprint: (page 122-E)Order part number: SPD024F (ILT1700) or SPL024F(ILT1400)Applications: Typically used to measure discrete LEDs, small LED mod-ules, or small lamps of 5 mm diameter or less for total power output inWatts. Can also be calibrated to measure radiant spherical intensity inWatts/steradian or for measuring irradiance in Watts/cm2.

MINIATURE PHOTOPIC POWER/LUMINOUS SPHERICALINTENSITY/ILLUMINANCE DETECTORPen probe detector has built-in miniature integrating sphere with 5 mmaperture for measuring photopic power, luminous spherical intensity, orilluminance.Measurement Range with:� ILT1400 (SPL): 4.76e-5 to 1.67e+2 Lumens� ILT1700 (SPD): 9.52e-7 to 9.52e+2 LumensSpectral Range: 400-700 nmSpectral Graph: (page 115-B2)Footprint: (page 122-E)Order part number: SPD024Y (ILT1700) or SPL024Y (ILT1400)Applications: Typically used to measure discrete LEDs, small LED mod-ules, or small lamps of 5 mm diameter or less for photopic total poweroutput in Lumens. Can also be calibrated to measure luminous sphericalintensity in Candela (Candlepower) or for measuring illuminance in foot-candles (lm/ft2) or lux (lm/m2).


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Luminous/Radiant Beam Intensity DetectorsMeasurement in Watts per steradian for radiant beam intensity orCandela (Candlepower) for luminous beam intensity.

LUMINOUS BEAM INTENSITY DETECTORDetector with 5 mm aperture for measurement of luminous beamintensity in Candela (Candlepower)Measurement Range with:� ILT1400 (SEL): 2.13e-4 to 7.45e+2 Candela (Candlepower)� ILT1700 (SED): 4.26e-6 to 4.26e+3 Candela (Candlepower)Spectral Range: 400 – 700 nmSpectral Graph: (page 109-B1)Footprint: (162 mm x 42 mm dia)Order part number:SED033/Y/LED (ILT1700) or SEL033/Y/LED (ILT1400)Applications: Typically used to measure discrete LEDs, small LEDmodules, or small lamps of 5 mm diameter or less for luminous beamintensity output in Candela (Candlepower).

RADIANT BEAM INTENSITY DETECTORDetector with 5 mm aperture for measurement of radiant beamintensity in Watts/steradianMeasurement Range with:� ILT1400 (SEL): 3.33e-7 to 1.17e+0 Watts/steradian� ILT1700 (SED): 6.67e-9 to 6.67e+0 Watts/steradianSpectral Range: 400 – 700 nmSpectral Graph: (page 109-B2)Footprint: (159 mm x 42 mm dia)Order part number:SED033/F/LED (ILT1700) or SEL033/F/LED (ILT1400)Applications: Typically used to measure discrete LEDs, small LEDmodules, or small lamps of 5 mm diameter or less for radiant beamintensity output in Watts/steradian.

Luminance/Radiance DetectorsMeasurement in Watts per square centimeter per steradian for radi-

ance or candela per meter squared for luminance.

MINIATURE LUMINANCE DETECTORDetector is equipped with a 1.6 mm diameter PIN probe input opticwith a 0.5 mm spot size for confined-space, small light source lumi-nance applications.Measurement Range with:� ILT1400 (SEL): 2.50e+1 to 8.75 e+7 cd/m2

� ILT1700 (SED): 5.00e-1 to 5.00 e+8 cd/m2

Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 109-C1)Footprint: (190 mm x 42 mm dia)Order part number:SED033/Y/P9/PIN (ILT1700) or SEL033/Y/P9/PIN (ILT1400)Applications: The PIN probe input optic of this detector facilitatesaverage luminance measurement of small light sources such asminiature displays and lamps, discrete LEDs, small LED modules,small diffusers, or diffuse sources in confined spaces permitting inser-tion of the 1.6 mm diameter, 6-inch long PIN probe. Due to the ±15ºfield of view, this detector is primarily intended for contact measure-ment but may be used for close distance luminance measurementswhere the distance away from the source will not cause the measure-ment spot size to exceed the area of the source. Detector comes withcalibrations for readout in foot-lamberts or candela/m2.Please note: PIN probe consists of a single 6-inch long, 0.5 mmdiameter quartz fiber optic in a stainless steel shield and is notflexible. Bending of the PIN probe may lead to breakage of theinternal fiber optic.

LUMINANCE DETECTORLuminance detector with narrow field of view (±0.75º) lens with25.4 mm aperture for measurement in Candela per meter squared.Measurement Range with:� ILT1400: 5.78e-1 to 2.02e+6 cd/m2

� ILT1700: 1.16e-2 to 1.16e+7 cd/m2

Spectral Range: 400 – 700 nmSpectral Graph: (page 109-C2)Footprint: (90 mm x 42 mm dia)Order part number: SED033/Y/R (ILT1700) or SEL033/Y/R (ILT1400)Applications: Typically used to measure large area LED modules,backlight panels, LCDs, or other display sources 25.4 mm or larger indiameter for luminance output in Candela per meter squared.



Luminance/Radiance Detectors (continued)

RADIANCE DETECTORRadiance detector with narrow field of view (±0.75º) lens with 25.4 mm aperture for measurement in Wattsper centimeter squared per steradian.Measurement Range with:� ILT1400: 1.30e-7 to 4.55e-1 Watts/cm2/steradian� ILT1700: 2.60e-9 to 2.60e+0 Watts/cm2/steradianSpectral Range: 400 – 700 nmSpectral Graph: (page 110-A1)Footprint: (87 mm x 42 mm)Order part number: SED033/F/R (ILT1700) or SEL033/Y/R (ILT1400)Applications: Typically used to measure large area LED modules, backlight panels, LCDs, or other displaysources 25.4 mm or larger in diameter for radiance output in Watts per centimeter squared per steradian.

Spectrum/Color Measurement SystemsILT900 Spectroradiometer-based systems for measurement and chromatic analysis in Watts per nanometeror lumens per nanometer, Watts per square centimeter per nanometer, lux, color coordinates, domi-nant/complementary wavelength and purity, color rendering index, and coordinated color temperaturedepending on system configuration. Systems include initial calibration. Additional calibrations may be pur-chased for other measurement units depending on system configuration. All systems in the Spectral/Colorsection below require a personal computer.


ILT900LEDSpectroradiometer-based system includes the ILT900 Spectroradiometer, INS150 6-inch integrating sphere,2 calibrations for measurement and chromatic analysis in power and irradiance, and the A2706 MagPro™LED mounting board.Spectral Range: 250 – 950 nmMeasures: Watts/cm2/nm, Watts/nm, lumens/nm, lumens/m2/nm, candela (CIE127), chromatic analysisApplications: Versatile system includes the INS150 6-inch integrating sphere for measurement and chro-matic analysis of LEDs, LED modules, and small lamps for total flux output in Watts or lumens per nanome-ter. This system comes calibrated with our W2 cosine corrector for measurement and chromatic analysis inirradiance (illuminance) in Watts per centimeter squared per nanometer (lumens per meter squared pernanometer) or for CIE127 compliant beam intensity in Candela per nanometer.

See page 91 for more information about the INS150 Integrating Sphere

Other optional input optics for use with our ILT900 system include our INS250 10-inch Integrating Sphere andthe R2 Radiance/Luminance Barrel. See page 97 for more ILT900 accessories.


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R A D I O M E T R Y M E A S U R E M E N T

Radiometry is light measurement

Radiometry is the detection and measurement oflight waves in the optical portion of the electro-magnetic spectrum which is further divided intoultraviolet, visible, and infrared light. All lightmeasurement is considered radiometry with pho-tometry being a special subset of radiometryweighted for a typical human eye response.

Manipulating light for more accuratemeasurement

Light waves behave like all electromagneticwaves, in that they interfere with each other,become directionally polarized, or bend whenpassing an edge. Because of these properties,light waves can be predictably manipulated forincreased or decreased amplitude or even filteredby wavelength or a band of wavelengths bymeans of various filters, mirrors, lenses, prisms,gratings, and other input optics. These principalsmake it feasible to tailor a light detector to matcha particular application. In most cases when mak-ing radiometric measurements with silicon photo-diodes, a flat spectral response filter is used toeven out the detectors innate sensitivity to the redportion of the spectrum versus the blue. This flatresponse allows the detector to accurately meas-ure light at one wavelength versus another whichis particularly useful if the spectral output of thelight source is unknown or likely to vary with oper-ating conditions or application requirements. Inthe event that a particular section of the outputfrom a light source needs to be isolated, a detectorwith a narrower response can be used or a bandpass filter can be placed on a broad response

detector to tailor it’s response to measure just therequired portion of light. Narrowband filters canalso be used to isolate a very narrow portion of lightsuch as that of a specific mercury emission line.

Radiometry instrumentation fornearly any application

International Light Technologies offers a broadarray of radiometric detectors to allow configura-tion of a radiometer system to measure nearly anyapplication from the UV (160 nm) to far-Infrared(40 µm). We also have photomultiplier detectors forvery low level light detection and our powerfulILT900 Wideband Spectroradiometer for complete,turnkey spectral measurements.


R A D I O M E T R Y M E A S U R E M E N T S Y S T E M S

The following detectors, except the “Spectral Measurement System” and“Irradiance Monitor Kit” sections, require either an ILT1400 (SEL type detectors)or ILT1700 (SED type detectors) instrument to make a complete measurementsystem. All detectors include one initial calibration. Additional calibrations maybe purchased for other measurement units depending on detector type.

Irradiance Monitor KitThe OPM Series optical process monitors are designed for on-line moni-toring of optical intensities in real-time applications. The fiber-coupledversion is a complete system configured with an internally mounted fil-ter and detector allowing the optical pick-up to be placed in environ-mentally harsh or sensitive environments. See page 13 for more info onthe OPM1-F.

IRRADIANCE MONITOR

Fiber-coupled on-line irradi-ance monitor system.Measurement Range with:� OPM1F: .001 to 19.999mW/cm2 (complete system)Spectral Range: 400 -1064nm, calibration at 600 nmSpectral Graph: (page 13)Footprint: (page 13)Order part number: OPMFApplications: Includes our proprietary flat response irradiance filter toaccurately monitor irradiance of a wide variety of visible/NIR light

sources. Provides direct readout in Watts/cm2 as well as 0 – 2Vand 4 – 20 mA outputs.Includes: OPM1 unit, 2 meter long fiber optic, FL fiber opticmounting flange, flashed opal diffuser, operators manual, andNIST traceable calibration

Irradiance DetectorsDetectors in this section cover a wide range of applications and lightsources. All detectors in this section are calibrated to measure in Wattsper square centimeter.

GENERAL IRRADIANCE DETECTORMulti-application detector with a near-flat spectral response formeasuring irradiance.Measurement Range with:� ILT1400 (SEL): 7.69e-9 to 2.69e-2 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 400 - 1064 nm, calibration at 600 nmSpectral Graph: (page 110-A2)Footprint: (32 mm x 42 mm dia)Order part number: SED033/F/W (ILT1700, OPM1, or ILT801) orSEL033/F/W (ILT1400)Applications: Designed for a wide variety of visible and near-IRirradiance measurements, including transmission and reflectancemeasurements.

VISIBLE RANGE IRRADIANCE DETECTORConfigured specifically to measure irradiance in the visible lightspectrum from 400 to 700 nm (non-photopic).Measurement Range with:� ILT1400 (SEL): 1.20e-8 to 4.22e-2 Watts/cm2


May also be used with the ILT801 or OPM1 for long term processmonitoring. Contact a sales engineer for range selection.Spectral Range: 400 - 700 nm, calibration at 600 nmSpectral Graph: (page 110-B1)Footprint: (37 mm x 42 mm dia)Order part number:SED033/F/HMR/W (ILT1700, OPM1, or ILT801)or SEL033/F/HMR/W (ILT1400)Applications: Provides radiometric measurements in the visible lightrange with a near-flat response by combining our “F” flat response filterwith the “HMR” IR blocking filter.

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UV IRRADIANCE DETECTORDesigned to measure irradiance over a broad portion of the UV spectrum from 250 to 400 nm.Measurement Range with:� ILT1400 (SEL): 1.82e-7 to 6.36e-1 Watts/cm2

� ILT1700 (SED): 2.33e-9 to 2.33e+0 Watts/cm2

May also be used with the ILT801 or OPM1 for long term process monitoring. Contact a sales engineer for range selection.Spectral Range: 250 - 400 nm, calibration at 350 nmSpectral Graph: (page 115-C1)Footprint: (32 mm x 42 mm dia)Order part number: SED005/WBS320/W (ILT1700, OPM1, or ILT801) or SEL005/WBS320/TD (ILT1400)Applications: This detector was designed primarily for UV curing applications for production line monitoring and devel-opment work to determine ideal exposure levels, times, and wavelengths but can be used for any application requiring awide spectral response in the UV.

NEAR-INFRARED IRRADIANCE DETECTORIndium Gallium Arsenide (InGaAs) irradiance detector with high sensitivity in the near-infrared (NIR) portionof the spectrum.Measurement Range with:� ILT1400 (SEL): 3.57e-9 to 1.25e-2 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process monitoring. Contact a sales engineer for range selection.Spectral Range: 850 – 1,700 nm, calibration at 1480 nmSpectral Graph: (page 115-C2)Footprint: (27 mm x 42 mm dia)Order part number: SED007/W (ILT1700, OPM1, or ILT801) or SEL007/W (ILT1400)Applications: Designed primarily for any application requiring high sensitivity in the near-infrared spectrum such as IR-Ahazard measurements, flame analysis, and night vision, this detector has nearly 1,000 times the sensitivity in the near-infrared spectrum of our SED(SEL)623 thermopile-based infrared detector.

WIDE-RANGE NEAR-INFRARED IRRADIANCE DETECTORDesigned to measure thermal irradiance with a flat response in the near infrared portion of the spectrumfrom 700 to 4,200 nm.Measurement Range with:� ILT1400 (SEL): 2.00e-5 to 9.67e-2 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process monitoring. Contact a sales engineer forrange selection.Spectral Range: 200 - 4200 nm, flat above 700 nmSpectral Graph: (page 116-A1)Footprint: (66 mm x 42 mm dia)Order part number: SED623/K9 (ILT1700, OPM1, or ILT801) or SEL623/K9 (ILT1400)Applications: Thermopile-based detector with a quartz window designed primarily for applications requiringirradiance measurements in the near-infrared portion of the spectrum such as solar or simulated solar analy-sis, flame analysis, and near-IR imaging. This detector, while it has a very broad spectral response ranging from 200 nm inthe UV up to 4,200 nm in the near-IR, is primarily a near-IR detector with a flat response above 700 nm. Also, by the verynature of thermopile-based detectors, this detector is heat sensitive and exposure to heat sources including the measure-ment source, should be kept to a minimum and the detector allowed to cool between readings.



Irradiance Detectors (continued)

WIDE-RANGE MID-INFRARED IRRADIANCE DETECTORDesigned to measure thermal irradiance with a flat response in the nearto mid- infrared portion of the spectrum from 700 to 15,000 nm.Measurement Range with:� ILT1400 (SEL): 2.00e-5 to 9.67e-2 Watts/cm2


Spectral Range: 200 – 15,000 nm, flat above 700 nmSpectral Graph: (page 116-B1)Footprint: (66 mm x 42 mm dia)Order part number: SED625/K9 (ILT1700) or SEL625/K9 (ILT1400)Applications: Thermopile-based detector with a Barium Fluoride (BaF2)window designed primarily for thermal irradiance applications in thenear to mid-infrared portion of the spectrum. This detector, while it hasan exceptionally broad spectral response ranging from 200 nm in the UVto 15,000 nm in the mid-IR, is primarily a thermal detector with a flatresponse above 700 nm and is ideally suited to measurements in thenear to mid-IR. Also, by the very nature of thermopile-based detectors,this detector is heat sensitive and exposure to heat sources including themeasurement source, should be kept to a minimum and the detectorallowed to cool between readings.Please note: The Barium Fluoride (BaF2) window permanently mount-ed on the thermopile, while facilitating extended response out into themid-IR, is a very delicate salt crystal window and cannot be directlytouched by human skin or cleaned with liquid cleaner of any kind.

WIDE-RANGE FAR-INFRARED IRRADIANCE DETECTORDesigned to measure thermal irradiance with a flat response in the nearto far- infrared portion of the spectrum from 700 to 40,000 nm.Measurement Range with:� ILT1400 (SEL): 2.00e-5 to 9.67e-2 Watts/cm2


Spectral Range: 200 – 40,000 nm, flat above 700 nmSpectral Graph: (page 116-A2)Footprint: (66 mm x 42 mm dia)Order part number: SED624/K9 (ILT1700) or SEL624/K9 (ILT1400)Applications: Thermopile-based detector with a Potassium Bromide(KBr) window designed primarily for thermal irradiance applications inthe near to far infrared portion of the spectrum. This detector, while ithas an exceptionally broad spectral response ranging from 200 nm in theUV to 40,000 nm in the far-IR, is primarily a thermal detector with a flatresponse above 700 nm and is ideally suited to measurements in thenear to far-IR. Also, by the very nature of thermopile-based detectors,this detector is heat sensitive and exposure to heat sources including themeasurement source, should be kept to a minimum and the detectorallowed to cool between readings.Please note: The PotassiumBromide (KBr) windowpermanentlymount-ed on the thermopile, while facilitating extended response out into thefar-IR, is a very delicate salt crystal windowand cannot be directlytouched by human skin or cleanedwith liquid cleaner of any kind.

Radiance DetectorsDetectors in this section have special input optics with narrow fields ofview and nearly flat spectral responses enabling geometrically correctmeasurement of diffuse light sources and illuminated surfaces in wattsper square centimeter per steradian.

RADIANCE DETECTORDetector has a near-flat spectral response and a very narrow field ofview (±0.75º) enabling radiance measurement of nearly any diffuselight source or illuminated surface larger than 25.4 mm in diameter.Measurement Range with:� ILT1400 (SEL): 1.30e-7 to 4.55e-1 Watts/cm2/sr� ILT1700 (SED): 2.60e-9 to 2.60e+0 Watts/cm2/srSpectral Range: 400 - 1064 nm, calibration at 600 nmSpectral Graph: (page 110-A1)Footprint: (87 mm x 42 mm dia)Order part number: SED033/F/R (ILT1700) or SEL033/F/R (ILT1400)Applications: Typically used to measure large area LED modules, back-light panels, LCDs, lamp diffusers, film illuminators, or nearly any otherdiffuse light source or illuminated surface 30 mm or larger in diameterfor radiance output in Watts per centimeter squared per steradian. Thisdetector is not typically recommended for contact luminance measure-ments due to secondary reflection characteristics.


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Low-Level Irradiance DetectorsThese self-contained photomultiplier detectors have extremesensitivity (better than 1000 X that of a standard silicon photocell)without the added expense and complication of an external high-voltage power. Detectors in this section are preconfigured andcalibrated for low level irradiance measurements in Watts persquare centimeter but other ranges and combinations are available.Please contact our knowledgeable sales staff for more information.Please note: Detectors in this section will only work with theILT1700 Research Radiometer.

IRRADIANCE PHOTOMULTIPLIER DETECTORUltra-sensitive photomultiplier detector for extremely low light levelirradiance measurements from 250 to 600 nm.Spectral Range: 250 - 600 nmSpectral Graph: (page 108-C2)Footprint: (112 mm x 42 mm dia)Order part number: SPM068/QNDS3/WApplications: Photomultiplier detector with built-in power supply isequipped with a quartz cosine correcting diffuser for taking accurateirradiance measurements in very low light level applications such asbioluminescence, phosphorescence, safety marking, and photon count-ing. The detector comes equipped with a QNDS3 attenuator to preventoverexposure of the detector but it may be removed for ultra-sensitivelight measurements. Calibrations in Watts per square centimeter withand without the QNDS3 are provided.Please note: Care must be taken not to expose this detector to directroom or sunlight signals with the QNDS3 attenuator removed whilethe detector is connected to the meter to prevent irreparable damageto the photomultiplier tube.

Low-Level Radiance DetectorsThese self-contained photomultiplier detectors have extreme sensitivi-ty (better than 1000 X that of a standard silicon photocell) without theadded expense and complication of an external high-voltage power.Detectors in this section are preconfigured with our narrow field ofview optic and calibrated for low level radiance measurements in Wattsper square centimeter per steradian of diffuse light sources and illumi-nated surfaces larger than 25.4 mm in diameter. Other ranges andcombinations are available. Please contact our knowledgeable salesstaff for more information.Please note: Detectors in this section will only work with the ILT1700Research Radiometer.

RADIANCE PHOTOMULTIPLIER DETECTORUltra-sensitive photomultiplier detector and narrow field of view opticwith a spectral response from 250 to 600 nm for accurate low levelradiance measurementsSpectral Range: 250 - 600 nmSpectral Graph: (page 108-C2)Footprint: (112 mm x 42 mm dia)Order part number: SPM068/QNDS3/RApplications: This photomultiplier detector with built-in power supplyis fitted with a narrow field of view optic allowing geometrically accu-rate radiance measurements in very low light level applications such asbioluminescence, phosphorescence, safety marking, and photon count-ing. The minimum spot size at a 1-inch distance is 25.4 mm in diame-ter. This detector is not typically recommended for contact radiancemeasurements due to secondary reflection characteristics. The detectorcomes equipped with a QNDS3 attenuator to prevent overexposure ofthe detector but it may be removed for ultra-sensitive light measure-ments. Calibrations in Watts per square centimeter per steradian withand without the QNDS3 are provided.Please note: Care must be taken not to expose this detector to directroom or sunlight signals with the QNDS3 attenuator removed whilethe detector is connected to the meter to prevent irreparable damageto the photomultiplier tube.

Spectral Measurement SystemThe ILT900 Portable Wideband Spectroradiometer System can measurethe spectral output of a wide range of radiometric light sources inWatts per nanometer or Watts per square centimeter per nanometer.The ILT900 includes an initial calibration and additional calibrationsmay be purchased for other measurement units depending on systemconfiguration. The ILT900 does require a personal computer.

See page 5 for more information on the ILT900 including PC requirementsand specifications.

ILT900Spectroradiometer-based system for spectral analysis of most typesof radiometric light sources.Spectral Range: 250 – 950 nmMeasures: Watts/cm2/nm, Watts/nm, lumens/nm, lumens/m2/nm,candela (CIE127), chromatic analysisApplications: The ILT900 is a complete, turnkey system enablingspectral, radiometric, photopic, and colorimetric analysis of a largearray of light sources over a wide spectral range from the UV, throughthe visible, and into the near-infrared. Please see page 97for a list of accessories for the ILT900 Spectroradiometer.



U V C U R I N G M E A S U R E M E N T

As the world’s population continues to expand, sotoo does the demand for goods and the worldwants them fast and cheap. To keep up with theincrease in demand, manufacturers are constantlylooking to increase their output by shortening theproduction time while keeping costs low. One,typically troublesome bottle neck is the use ofinks, paints, adhesives, and other coatings inproduction since these need time to set or cureproperly. This may entail simply waiting therequired amount of time for the product to set,which could take minutes or even hours, orattempting to accelerate the process with variousmethods such as forced air drying or oven baking.The gains in production experienced with theseacceleration methods are often minimal and theiradaptation and use typically costly. The pressureto free the bottleneck to increase their productionand remain competitive in their markets wouldforce manufacturers to research a faster, moreadaptable, and less expensive alternative totraditional curing acceleration methods. Thebreakthrough in this research came in the form ofnew chemicals, called photoinitiators. These

photoinitiators react when exposed to a certainamount of light from a particular band or “action”spectrum causing the compound containing thephotoinitiator to cure by polymerization of theliquids within. Photoinitiators could be developedinto a myriad of compounds useful inmanufacturing, leading to the availability ofinstant or delayed cure photoreactive inks, paints,adhesives, and coatings. Designed with a wideselection of available action spectra,photoreactive compounds now givemanufacturers a menu of solutions to quickly andeconomically adapt the technology to theirunique applications.

The right action spectrum is critical toproduction success

Choice of action spectrum from a photoreactivecompound will be dictated by the intendedapplication for the product, the desired effectsafter curing, and even the manufacturingenvironment itself. Ultraviolet or UV light istypically used as the action spectrum due to the

efficiency and economy with which it can beproduced in a manufacturing process but alsobecause manufacturing facilities tend to have largeamounts of visible light present either fromwindows or task lighting. The use of UVphotoreactive compounds eliminates the concernsabout storage and use in the prevention ofpremature curing from exposure to the visible lightpresent. UV curing does present certain challengessince exposure to UV can gradually degradeproduction equipment and pose health risks tohumans both of which must be carefullyconsidered. Despite these concerns, UV curingremains the predominant choice in high-speed,large quantity production applications such as theprinted circuit board, publishing, screen printing,and furniture manufacturing industries. Visiblelight, while less efficient and slower than UV curing,has advantages over UV when human safety is ofprime concern, particularly if a compound needs tobe cured in direct contact with a person, such aswith an oral adhesive. Specifically blue visible lightis used in such applications as its shorterwavelengths are not produced in the largequantities from the sun or task lighting as are thelonger visible wavelengths like green, yelloworange or red. This allows use without rapidpremature curing and extends the working timebeyond that of photoreactive compounds with analternative visible light action spectrum.

ILT solves product cure problems

Curing a product with exposure to light, while fastand economical, requires careful control of theexposure process such as the spectral output of thelight source, intensity levels, and exposure times ofthe products. As manufacturers ramp up theirproduction, so too must the curing process beaccurately adjusted and well maintained to ensurequality standards. International Light Technologieshas developed a broad range of curing-specificinstruments to aid in the challenging task ofdefining and monitoring these process variables.

Bottlenecks in production force development of new curing technologies

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The following detectors, except the “Belt Radiometers” and “SpectralMeasurement System” section, require either an ILT1400 (SEL typedetectors) or ILT1700 (SED type detectors) instrument to make acomplete measurement system. All detectors include one initialcalibration. Additional calibrations may be purchased for othermeasurement units depending on detector type.

Belt RadiometersThese are self-contained, compact radiometers designed formeasuring exposure of conveyor-fed UV curing process equipmentfrom 1 to 80 feet-per-minute. All feature single button operation,miniature integrating sphere receptor, irradiance exposureprofiling, and a durable, polished chrome housing to handlethe extreme environmental conditions typically found in processUV curing equipment.

ILT400 SERIES BELTRADIOMETERNew solid-state detector andultra-stable amplifiertechnology along withirradiance exposure profilingand rechargability combine togive lower noise, greaterspeed, more functionality, andhigher accuracy at a pricebelow any precision belt

radiometer sold today. Available in three spectral response models.See page 15 for more info on the ILT400.Measurement Range:5 mJ/cm2 to 20 J/cm2 (5 mW/cm2 to 20 W/cm2

(Graphic Profiling begins at 5 mW/cm2 )

Spectral Range: Three models available (see below)Spectral Graph: See page 15 in the Instruments sectionTemperature range: 10 to 60º C internal case temperature (greaterambient temperatures can be tolerated for short periods if themaximum internal case temperature is not exceeded)Belt speed: 1 to 80 feet-per-minuteFootprint: 0.5 inches x 4.4 inches x 6.3 inches(12.7 mm x 111 mm x 161 mm)Order part number/spectral response:ILT400BAV (275 – 485 nm)ILT400UVV (390 – 475 nm)ILT400UVA (315 – 390 nm)

Applications: Specifically designed to withstand the harshenvironment of today’s high-speed, high-intensity, conveyor belt-fedprocess equipment. Three different spectral response models availableto measure a wide variety of curing light sources.

ILT490 SERIES BELT RADIOMETERThe ILT490 series of belt radiometers incorporates the industry provenmeasurement capabilities and exceptional performance criteria of theoriginal IL390 and IL290 UV Curing Light Bugs, with the improvedfeatures of the ILT400 series, including irradiance exposure profiling,graphing, cost reduction, rechargeable batteries and A400 charger.

The ILT490 works with many lamp options from Iron doped,H and D type lamps, as well as standard UV sources and comesin two versions: See page 16 for more info on the ILT490.

Measurement Range:5 mJ/cm2 to 20 J/cm2 (5 mW/cm2 to 20 W/cm2

(Graphic Profiling begins at 5 mW/cm2 )Spectral Range: Two models available (see below)Spectral Graph: See page 16 in the Instruments sectionTemperature range: 10 to 60º C internal case temperature (greaterambient temperatures can be tolerated for short periods if themaximum internal case temperature is not exceeded)Belt speed: 1 to 80 feet-per-minuteFootprint: 0.5 inches x 4.4 inches x 6.3 inches(12.7 mm x 111 mm x 161 mm)Order part number/spectral response:ILT490 (250 – 400 nm)ILT490C (205 – 345 nm)

Applications: Specifically designed to withstand the harshenvironment of today’s high-speed, high-intensity, conveyor belt-fedprocess equipment. Two different spectral response models available tomeasure a wide variety of curing light sources.

U V C U R I N G M E A S U R E M E N T S Y S T E M S


Irradiance DetectorsDetectors in this section cover a wide range of typical and specialized UVand UV/Visible curing applications. All detectors in this section are cali-brated to measure in Watts per square centimeter.

UV CURING DETECTORDesigned to measure irradiance over a broad portion of the UV spectrumfrom 250 to 400 nm.Measurement Range with:� ILT1400 (SEL): 1.82e-7 to 6.36e-1 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 250 - 400 nm, Calibration at 350 nmSpectral Graph: (page 115-C1)Footprint: (32 mm x 42 mm dia)Order part number:SED005/WBS320/W (ILT1700) or SEL005/WBS320/TD (ILT1400)Applications: Designed for UV curing applications, this detector is per-fect for production line monitoring and development work to determineideal exposure levels, times, and wavelengths.

NARROWBAND UV CURING DETECTORNarrowband UV curing detector designed to measure lamp output at 335 nm.Measurement Range with:� ILT1400 (SEL): 2.33e-6 to 8.14e+0 W/cm2

� ILT1700 (SED): 1.00e-8 to 1.00e+1 W/cm2

May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 330 - 340 nm, Center wavelength at 335 nmSpectral Graph: (page 116-B2)Footprint: (32 mm x 42 mm dia)Order part number:SED005/NS335/W (ILT1700) or SEL005/NS335/TD (ILT1400)Applications: This detector is designed to accurately measure UV curinglight source output at 335 nm without measuring the more intense andnearby mercury lines at 313 and 365 nm through the use of a narrow-band filter.

PULSED MERCURY XENON UV CURING DETECTORAttenuated detector designed to measurer pulsed and continuousMercury Xenon UV curing sources.Measurement Range with:ILT1700: 5.70e-8 to 5.70e+1 W/cm2

Spectral Range: 326 - 401 nm, Calibration at 365 nm

Spectral Graph: (page 110-B2)Footprint: (45 mm x 42 mm dia)Order part number: SED033/B/QNDS2/WApplications: This detector is designed to measure high intensity pulsedand continuous UV curing sources, particularly high speed pulsedMercury Xenon sources.

SPOT IRRADIANCE UV CURING DETECTORDetector has special right-angle input optic for taking spot irradiancemeasurements in confined access systems.Measurement Range with:� ILT1400 (SEL): 4.00e-4 to 1.00e+1 W/cm2

� ILT1700 (SED): 8.00e-6 to 1.00e+1 W/cm2

Spectral Range: 326 - 401 nm, Calibration at 365 nmSpectral Graph: (page 110-C1)Footprint: (500.2 mm x 42 mm dia)Order part number:SED033/B/RAMP (ILT1700) or SEL033/B/RAMP (ILT1400)Applications: Detector includes the Right-Angle Multi-Probe (RAMP)input optic for spot irradiance measurement of moderate intensity UVcuring sources in confined spaces. The RAMP probe is 18 inches (457.2mm) in length and is 5 mm square allowing remote access to most anyUV curing system. (12 inch RAMP also available)

“SUPER-SLIM” LOW PROFILE UV CURING DETECTOR2 mm thick detector is designed to measure UV curing sources in verylow profile applications.Measurement Range with:� ILT1400 (SSL): 1.11e-5 to 9.00e-1 W/cm2

� ILT1700 (SSD): 2.22e-7 to 9.00e-1 W/cm2

Spectral Range: 260 - 400 nm, Center wavelength at 365 nmSpectral Graph: (page 116-C1)Footprint: (page 123-A)Order part number: SSD001A (ILT1700) or SSL001A (ILT1400)Applications: This 2 mm thick, “Super-Slim” detector is ideally suited foruse in low profile printed circuit board, printing plate, screen print, orjust about any other UV photo-exposure assembly or process with veryminimal access. The “Super-Slim” mimics “B” photoresist response whenused under glass or Mylar.Please note: To maintain the very thin 2 mm profile, cable strain reliefis minimal and extra caution should be taken when handling or meas-uring with this detector to avoid damage.


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BLUE SPOT CURING WAND IRRADIANCE UNIFORMITY DETECTORSpecialized detector designed to measure irradiance or uniformity of blue spot curing wands.Measurement Range with:� ILT1400 (SEL): 6.45e-6 to 2.26e+1 W/cm2

� ILT1700 (SED): 1.30e-7 to 1.29e+1 W/cm2

Spectral Range: 370 – 515 nm, Calibration at 450 nmSpectral Graph: (page 110-C2)Footprint: (33 mm x 42 mm dia)Order part number: SED033/TBLU/T1MM (ILT1700) or SEL033/TBLU/T1MM (ILT1400)Applications: Specifically configured with a 1mm aperture for accurate contact irradiance measurement orcontact uniformity across the tip of most any narrow blue light spot curing wand.

SPOT CURE IRRADIANCE UNIFORMITY DETECTORThis detector is specially configured for contact irradiance or uniformitymeasurements of spot curing wands, light guides, and fiber optics.Measurement Range with:� ILT1400 (SEL): 9.09e-6 to 3.18e+1 W/cm2

� ILT1700 (SED): 1.82e-7 to 1.82e+2 W/cm2

Spectral Range: 320- 400nm, Calibration wavelength at 365 nmSpectral Graph: (page 116-C2)Footprint: (page 123-B)Order part number: XRD050 (ILT1700) or XRL050 (ILT1400)Applications: Configured with a .5 mm limiting aperture to facilitate takingcontact irradiance measurements of small area UV curing light sources such as LEDs,spot-cure guns, wands, light guides and fiber optics.

Spectral Measurement SystemThe ILT900 Portable Wideband Spectroradiometer System can measure the spectral output of a wide range ofUV and UV/Visible curing light sources in Watts per nanometer or Watts per square centimeter per nanometer.The ILT900 includes an initial calibration and additional calibrations may be purchased for other measurementunits depending on system configuration. The ILT900 does require a personal computer.


ILT900Spectroradiometer-based system for spectral analysis of most types of germicidal light sources.Spectral Range: 250 – 950 nmMeasures: Watts/cm2/nm, Watts/nm, lumens/nm, lumens/m2/nm, candela (CIE127), chromatic analysisApplications: The ILT900 is a complete, turnkey system enabling spectral, radiometric, photopic, and colori-metric analysis of a large array of light sources over a wide spectral range from the UV, through the visible,and into the near-infrared.A high temperature version with a custom fiber rated to 200° C is available as well as an optional right-anglecosine correcting input optic. Please see page 97 for a list of accessories for the ILT900 Spectroradiometer.



P H O T O R E S I S T M E A S U R E M E N T

Photoresist is used to form patternsfor industrial processing

Photoresist is a light-sensitive chemical substancethat is used to form a coating on a surface or sub-strate. This coating can then be exposed to a spe-cific band of light, referred to as the photoresist’saction spectrum, to affect a desired change in thephotoresist. This change causes the photoresist toeither become soluble or insoluble to anotherchemical called the developer which will bewashed over the photoresist. Once developed, thephotoresist that has been exposed to light in theaction spectrum either remains or is washed awayleaving a pattern that can then be used for furtherprocessing such as chemical etching, engraving, orlithography.

Photoresist sees widespread use innumerous technologies includingmicromachining

Photoresist is extensively used in the printedcircuit board industry where the patterns createdby its use layout the circuit connections or traces ofprinted circuit boards through the use of etchingchemicals. Another heavy user of photoresist isthe semiconductor industry, where it is a crucialstep in the photolithographic production of micro-patterns that are used to form the tiny circuits ofindividual semiconductor devices. Photoresistshave also found use in Biomedical engineering,holography, and micromachining. The lastapplication, micromachining, is a rapidlyadvancing arena in industrial technology. Alsoreferred to as MEMS, short forMicroElectroMechanical Systems technology,micromachining has driven the use of photoresistto remarkable new heights. Special photoresistsand substrates are carefully processed anddeveloped repeatedly in micro-sized layers,forming fully functional micro-sized circuits,structures, and even entire machines such as gearsets, valves, mirrors, sensors, and gyroscopes.Some MEMS devices can be as small as a singlemicrometer! DLP or digital light processing is a

technique used in modern projection television setsthat utilizes a microchip with thousands ofmicroscopic mirrors on its surface, manufacturedthrough MEMS technology, along with a light sourceto create smooth, high-contrast, jitter-free images.

Controlling the exposure of photoresistsis critical to maintaining production

Many photoresist types exist to suite a large variety ofapplications and the action spectra can vary from oneto the next. It is critical to control the action spectraexposure settings, both the intensity of the light andthe time of exposure, to avoid wasteful under oroverexposure of the photoresist during processingand production. To maintain these settings, a lightmeter with a spectral response as close to thephotoresist’s action spectrum as possible is requiredto get an accurate idea of how well the photoresist isbeing exposed. Further complicating matters is theprocessing equipment where photoresists areexposed are frequently very compact and haveminimal room for taking these measurements.International Light Technologies is committed toproviding a variety of unique, photoresist specificinstruments to assist our customers in making theseoften difficult measurements.

Image courtesy of Sandia National Laboratories, SUMMiTTM Technologies, www.mems.sandia.gov

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The following detectors require either an ILT1400 (SEL type detectors) or ILT1700 (SED type detectors) instru-ment to make a complete measurement system. All detectors include one initial calibration. Additional cali-brations may be purchased for other measurement units depending on detector type.

Photoresist Specific DetectorsThe detectors in this section are specifically designed for photoresist applications, many of which have mini-mal access requirements such as printed circuit board, printing plate, and screen print photo-exposure equip-ment. The spectral responses of these detectors are designed to match or nearly match industry standard Aand B type photoresists but may be used with other photoresist types or applications with similar spectralresponse or low profile requirements.

PHOTORESIST “A” TYPE DETECTORDesigned to have the same response as industry standard A-type photoresist to allow for the most accurateexposure settings possible when using this type of photoresist.Measurement Range with:� ILT1400 (SEL): 2.00e-7 to 7.00e-1 W/cm2

� ILT1700 (SED): 4.00e-9 to 4.00e+0 W/cm2

May also be used with the ILT801 or OPM1 for long term process monitoring. Contact a sales engineer forrange selection.Spectral Range: 320 to 475 nm, calibration wavelength at 410 nmSpectral Graph: (page 111-A1)Footprint: (33 mm x 42 mm dia)Order part number: SED033/A/W (ILT1700) or SEL033/A/W (ILT1400)Applications: Designed to have the same response as industry standard A-type photoresist but can be usedwith other photoresist types that have a similar spectral response as A-type or for any application requiringmeasurement in the UV and blue visible regions of the spectrum.

P H O T O R E S I S T M E A S U R E M E N T S Y S T E M S


LOW-PROFILE, LOW LEVEL PHOTORESIST “A” TYPE DETECTORLow-profile detector for use in confined space, low-level photoresistapplications. This detector has the same spectral response as industrystandard A-type photoresist for accurate exposure settings.Measurement Range with:� ILT1400 (XRL): 2.22e-8 to 7.78e-2 Watts/cm2

� ILT1700 (XRD): 4.44e-10 to 4.44e-1 Watts/cm2

May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 320 - 475 nm, calibration wavelength at 410 nmSpectral Graph: (page 117-A1)Footprint: (page 123-B)Order part number: XRD140A (ILT1700) or XRL140A (ILT1400)Applications: The low-profile housing of this detector allows measure-ments to be taken in confined photoresist applications where use of ataller detector is not possible. The spectral response of the detector is thesame as industry standard A-type photoresist but it may be used withother photoresist types that have a similar spectral response as A-type orin any application requiring measurement in the UV and blue visibleregions of the spectrum. This detector is designed for use in lower lightlevel photoresist applications. If higher levels are to be measured, pleasesee the attenuated version below.Please note: Optics are non-removable in low-profile detectors.

LOW-PROFILE, ATTENUATED PHOTORESIST “A” TYPE DETECTORAttenuated low-profile detector for use in higher light level, confinedspace, production photoresist applications. This detector has the samespectral response as industry standard A-type photoresist for accurateexposure settings.Measurement Range with:� ILT1400 (XRL): 2.50e-7 to 8.75e-1 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 320 - 475 nm, calibration wavelength at 410 nmSpectral Graph: (page 117-A2)Footprint: (page 123-B)Order part number: XRD340A (ILT1700) or XRL340A (ILT1400)Applications: The low-profile housing of this detector allows for use inconfined photoresist applications in production and test environmentswhere use of a taller detector is not possible. The spectral response ofthe detector is the same as industry standard A-type photoresist but itmay be used with other photoresist types that have a similar spectralresponse as A-type. This detector has built-in attenuation to measurehigher levels than the low-level detector above.Please note: Optics are non-removable in low-profile detectors.

PHOTORESIST “B” TYPE DETECTORThis detector has the same response as industry standard B-type pho-toresist to allow for the most accurate exposure settings possible whenusing this type of photoresist.Measurement Range with:� ILT1400 (SEL): 2.50e-8 to 8.75e-2 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 326 - 401 nm, calibration wavelength at 365 nmSpectral Graph: (page 111-A2)Footprint: (35 mm x 42 mm dia)Order part number: SED033/B/W (ILT1700) or SEL033/B/W (ILT1400)Applications: Designed to have the same response as industry standardB-type photoresist but can be used with other photoresist types thathave a similar spectral response as B-type or for any application requir-ing peak response in the UVA or isolation of the 365 nm mercury line butsubdued response in the blue visible region of the spectrum.

LOW-PROFILE, LOW LEVEL PHOTORESIST “B” TYPE DETECTORLow-profile detector for use in confined space, low-level photoresistapplications. This detector has the same spectral response as industrystandard B-type photoresist for accurate exposure settings.Measurement Range with:� ILT1400 (XRL): 5.26e-8 to 1.84e-1 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 326 - 401 nm, calibration wavelength at 365 nmSpectral Graph: (page 117-B1)


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Footprint: (page 123-B)Order part number: XRD140B (ILT1700) or XRL140B (ILT1400)Applications: The low-profile housing of this detector allows measurements to be taken in confined pho-toresist applications where use of a taller detector is not possible. The spectral response of the detector isthe same as industry standard B-type photoresist but it may be used with other photoresist types that havea similar spectral response as B-type or in any application requiring peak response in the UVA or isolation ofthe 365 nm mercury line but subdued response in the blue visible region of the spectrum. This detector isdesigned for use in lower light level photoresist applications. If higher levels are to be measured, please seethe attenuated version below.Please note: Optics are non-removable in low-profile detectors.

LOW-PROFILE, ATTENUATED PHOTORESIST “B” TYPE DETECTORLow-profile detector for use in confined space photoresist applications. This detector has the same spectralresponse as industry standard B-type photoresist for accurate exposure settings.Measurement Range with:� ILT1400 (XRL): 5.26e-7 to 1.84e-0 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process monitoring. Contact a sales engineer forrange selection.Spectral Range: 326 - 401 nm, calibration wavelength at 365 nmSpectral Graph: (page 117-B2)Footprint: (page 123-B)Order part number: XRD340B (ILT1700) or XRL340B (ILT1400)Applications: The low-profile housing of this detector allows for use in confined photoresist applicationswhere use of a taller, standard housing detector is not possible. The spectral response of the detector is thesame as industry standard A-type photoresist but it may be used with other photoresist types that have asimilar spectral response as A-type. This detector has built-in attenuation to measure higher levels than thelow-level detector above.Please note: Optics are non-removable in low-profile detectors.

“SUPER-SLIM” LOW PROFILE PHOTORESIST DETECTOR2 mm thick detector is designed to measure photoresist sources in very low profile applications.Measurement Range with:� ILT1400 (SSL): 1.11e-5 to 9.00e-1 W/cm2

� ILT1700 (SSD): 2.22e-7 to 9.00e-1 W/cm2

Spectral Range: 260 - 400 nm, calibration wavelength at 365 nmSpectral Graph: (page 116-C1)Footprint: (page 123-A)Order part number: SSD001A (ILT1700) or SSL001A (ILT1400)Applications: This 2 mm thick, “Super-Slim” detector is ideally suited for use in low profile printed circuitboard, printing plate, screen print, or just about any other UV photo-exposure assembly or process with veryminimal access. This detector has a spectral response similar to B-type photoresist when measuring light inexposure equipment transmitted through Mylar or glass.Please note: To maintain the very thin 2 mm profile, cable strain relief is minimal and extra cautionshould be taken when handling or measuring with this detector to avoid damage.



P H O T O M E T R Y M E A S U R E M E N T

Unique human visual perception pres-ents challenges in light measurement.

Since the days of wax candles and oil lamps, manhas attempted to quantify the light output fromsuch devices in attempts to standardize productionand ensure that one oil lamp was as bright as thenext. As it turns out, this would prove to be acomplicated problem. The visible light portion ofthe electromagnetic spectrum, sometimes calledthe optical spectrum, encompasses wavelengthsapproximately 400 to 700 nm containing most ofthe colors discernable to the human eye. However,the human eye is not equally sensitive to allwavelengths of light, being most sensitive togreen at 555 nm under normal lighting conditionsthan to other wavelengths. Complicating attemptsto measure human light perception is theindividual variation in our ability to distinguish,describe, and reproduce color. A summary ofaverage human visual perception of light would berequired if any method for measuring it orreproducing its color was to be developed. Enterthe CIE.

Humaneye response research opens thedoor to photometry and colorimetry

The CIE or Commission internationale del'éclairage (International Commission onIllumination) is the international authority onmatters involving light, illumination, and color. Inan attempt to solve the problem of human colorperception, the CIE in 1931 developed one of thevery first mathematically defined color spaces, theCIE XYZ color space. The human eye containsreceptors for short, middle, and long wavelengths,also referred to as blue, green, and redrespectively, and therefore a color sensationwould have to be defined as three parameters. Aspecific method for assigning three numbers, alsoknown as tristimulus values, to represent eachcolor is called a color space. Based on directhuman eye measurement experiments performedin the 1920’s, an RGB color matching model ofhuman vision was developed and from this the CIEXYZ color space was derived. The central colormatching function in calculating the CIE XYZ colorspace was the photopic luminosity function whichrepresents the typical human eye response undernormal lighting conditions and is referred to as the

standard observer. Scotopic luminosity represents thetypical human eye response in dark conditions whereno color perception exists. Mesopic luminosity is acombination of the photopic and scotopic functionswhere minimal color perception exists and representsthe human eye response in dimly lit conditions.Having developed a basic color space based on astandard observer, we could then quantify theperceptual brightness of a light by directmeasurement with devices that have the sameresponse to light as that of the standard observer in ascience now called photometry. Photometric lightmeasurement is widely used in many industries tospecify, monitor, and control the brightness of task,street, safety, automotive, and aerospace lighting toname a few. It is important to note that the CIE XYZcolor space can only describe colors of light itself andnot objects. The perceived color of an object willdepend on the surface and color properties of theobject itself, that of nearby objects, and the ambientand direct lighting properties. This color space laterlaid the foundation for colorimetry, the science ofcolor measurement or reproduction. Many additionalcolor models, measurement techniques andinstruments have developed subsequent to thisgroundbreaking research to objectively reproducecolor in a wide variety of analog and digital media.

International Light Technologies coversthe gamut of photometric measurement

International Light offers photometric measurementinstruments that are unmatched in accuracy,sensitivity, and versatility for photopic and scotopicapplications including illuminance and luminance aswell as extensive color analysis via the powerfulfeature set of the ILT900 spectroradiometer.

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P H O T O M E T R Y M E A S U R E M E N T S Y S T E M S

The following detectors require either an ILT1400 (SEL type detectors) orILT1700 (SED type detectors) instrument to make a complete measure-ment system. All detectors include one initial calibration. Additional cali-brations may be purchased for other measurement units depending ondetector type.

Illuminance Monitor KitThe OPM1 Series optical process monitors are designed for on-line moni-toring of optical intensities in real-time applications. The fiber-coupledversion is a complete system configured with an internally mounted fil-ter and detector allowing the optical pick-up to be placed in environ-mentally harsh or sensitive environments.See page 14 for more info on the OPM1-Y.

ILLUMINANCE MONITOR

Fiber-coupled on-line illuminance monitor system.Measurement Range with:� OPM1-Y: 2 lux to 2Klux (complete system)Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 14)Footprint: (page 14)Order part number: OPM1-YApplications: Includes our redesigned photopic filter to accuratelymonitor illuminance of visible light sources. Provides direct readout infoot-candles or Lux (pleasespecify) as well as 0 – 2V and4 – 20 mA outputs.Includes: OPM1 unit, 2 meterlong fiber optic, FL fiber opticmounting flange, flashedopal diffuser, operators man-ual, and NIST traceable cali-bration.

Photopic Illuminance DetectorsThe detectors in this section are specifically designed for general-pur-pose photometric illuminance applications, such as task lighting specifi-cation compliance, lamp and LED production quality testing, and clinicaltesting. All are equipped with our new Y filter designed using propri-etary composite filter software to match the CIE V(λ) Photopic curvewithin 1% total area error.

ILLUMINANCE DETECTORBroad-range photometric illuminance detector.Measurement Range with:� ILT1400 (SEL): 5.98e-2 to 2.09e+5 Lux� ILT1700 (SED): 1.20e-3 to 1.20e+6 LuxMay also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 111-B1)Footprint: (35 mm x 42 mm dia)Order part number: SED033/Y/W (ILT1700) or SEL033/Y/W (ILT1400)Applications: Designed for highly accurate, broad-range photometricilluminance measurements. Standard cylindrical housing allows detectorto be placed on flat surfaces, hand-held, or tripod/bench post mountedas well as easily built into your own existing machinery, lamp housings,or test fixturing. Detector comes with calibrations for readout in foot-candles or lux.

ILLUMINANCE DETECTOR WAND

Broad-range photometric illuminance detector in ergonomic hand-heldwand housing.Measurement Range with:� ILT1400 (SCL): 1.67e-1 to 5.83e+5 Lux� ILT1700 (SCD): 3.33e-3 to 3.33e+6 LuxMay also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 117-C1)Footprint: (page 122-D)Order part number: SCD110 (ILT1700) or SCL110 (ILT1400)Applications: Detector offers highly accurate, broad-range photometricilluminance measurements in a compact ergonomic wand-shaped hous-ing. Detector was specifically designed for hand-held use but may beaccurately placed on flat surfaces as well. Detector comes with calibra-tions for readout in foot-candles or lux.Please note: Optics are non-removable in wand detectors.


Photopic Luminance DetectorsThese photometric detectors have special input optics restricting thefield of view (FOV) for geometrically accurate luminance (brightness)measurements of diffuse area sources such as LCDs, backlight panels,CRTs, lamp diffusers, and film readers either in contact or at a distance.All are equipped with our new Y filter designed using proprietary com-posite filter software to match the CIE V(λ) Photopic curve within 1%total area error.

LUMINANCE DETECTORBroad-range photometric luminance detector includes a narrow field ofview lens (±0.75º) with a 25.4 mm aperture (minimum spot size is 1-inch) for accurate distance luminance measurements.Measurement Range with:� ILT1400 (SEL): 5.78e-1 to 2.02e+6 cd/m2

� ILT1700 (SED): 1.16e-2 to 1.16e+7 cd/m2

Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 109-C1)Footprint: (90 mm x 42 mm dia)Order part number: SED033/Y/R (ILT1700) or SEL033/Y/R (ILT1400)Applications: Typically used to measure average luminance of large areaLED modules, backlight panels, LCDs, CRTs, or other diffuse area sources25.4 mm or larger in diameter. This detector is not typically recommend-ed for contact luminance measurements due to secondary reflectioncharacteristics. Detector comes with calibrations for readout in foot-lam-berts or candela/m2.

CONTACT LUMINANCE DETECTORHand-held pen probe specifically designed for average contact lumi-nance measurements with a spot size of 5 mm.Measurement Range with:� ILT1400 (SPL): 6.67e-1 to 2.33e+6 cd/m2

� ILT1700 (SPD): 1.33e-2 to 1.33e+7 cd/m2

Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 117-C2)Footprint: (page 122-E)Order part number: SPD025Y (ILT1700) or SPL025Y (ILT1400)Applications: Designed to measure average luminance in contact withdiffuse area sources larger than 5 mm, this detector has a large±14ºfield of view and some minor secondary reflection characteristicsso is not recommended for distance luminance measurements.Includes a rubber occluder hood to limit light leakage measurementerrors. Detector comes with calibrations for readout in foot-lambertsor candela/m2.Please note: Optics are non-removable in pen probe detectors.

MINIATURE LUMINANCE DETECTORDetector is equipped with a 1.6 mm diameter PIN probe input optic witha 0.5 mm spot size for confined-space, small light source luminanceapplications.Measurement Range with:� ILT1400 (SEL): 2.50e+1 to 8.75 e+7 cd/m2

� ILT1700 (SED): 5.00e-1 to 5.00 e+8 cd/m2

Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 109-C1)Footprint: (190.4 mm x 42 mm dia)Order part number:SED033/Y/P9/PIN (ILT1700) or SEL033/Y/P9/PIN (ILT1400)Applications: The PIN probe input optic of this detector facilitates aver-age luminance measurement of small light sources such as miniaturedisplays and lamps, discrete LEDs, small LED modules, small diffusers, ordiffuse sources in confined spaces permitting insertion of the 1.6 mmdiameter, 6-inch long PIN probe. Due to the ±15ºfield of view, thisdetector is primarily intended for contact measurement but may be usedfor close-distance luminance measurements where the distance awayfrom the source will not cause the measurement spot size to exceed thearea of the source. Detector comes with calibrations for readout in foot-lamberts or candela/m2.Please note: PIN probe consists of a single 6-inch long, 0.5mmdiameterquartz fiber optic in a stainless steel shield and is not flexible. Bending ofthe PIN probemay lead to breakage of the internal fiber optic.

Luminous Intensity/Flash Photometry DetectorsThese specialized detectors are designed for luminous intensity (candela,effective candela) measurements of steady or flashing sources as well asmeasurement of the flash integral (cd*second, lm*second/ft2,lux*seconds) and are frequently used in specification compliance of sig-nals, beacons, marker lights, and signage in aerospace, automotive, mili-tary, municipal, and many other commercial/industrial applications.Measurement distance from the light source to the detector is a requiredcomponent for the calculation of luminous intensity measurements orcalibrations and is a critical variable in the measurement setup to main-taining accuracy. Variation from the distance used to perform the lumi-nous intensity calculations and the actual placement distance of thedetector from the light source will lead to errors in the measurement,which is further amplified the closer the detector is to the light source.The intended measurement distance will dictate the best detector com-bination. Some detectors include gain amplifying optics for long dis-tance measurements which may cause saturation if used too close andthose without the gain amplifying optics should not be used too faraway since their larger fields of view will introduce stray light error intothe measurement. The detectors in this section all include illuminancecalibrations in foot-candles and lux but also include the formula for cal-


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culating luminous intensity, which is particularly useful if multiplemeasurement distances will be used. Otherwise, on request, they can becalibrated at our facility to read directly in luminous intensity units at aspecified measurement distance.

LUMINOUS INTENSITY/FLASH DETECTORIlluminance sensor designed for beam candela measurements at a dis-tance of 7 feet or less. Includes the Y filter, which was redesigned usingproprietary composite filter design software to match the CIE V(λ)Photopic curve within 1% total area error.Measurement Range with:� ILT1400 (SEL): 1.01e-2 to 3.54e+4 lux (steady sources only)� ILT1700 (SED): 2.02e-4 to 2.02e+5 luxSpectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 111-B2)Footprint: 90 mm x 42 mm dia)Order part number: SED033/Y/H (ILT1700) or SEL/033/Y/H (ILT1400)Applications: This luminous intensity detector with it’s light occludinghood (H) is designed for measurement distances up to a maximum ofabout 7 feet. Close luminous intensity measurements tend to magnifydistance errors so the distance from the light source to the detector mustbe carefully measured when calculating intensity with this detector.

Calibration is normally provided for readout in Lux but a calibration forreadout in Candela (steady sources) or Effective Candela (flashingsources, ILT1700 only)can be provided if a specific measurement dis-tance is given when ordering otherwise a formula for calculatingCandela and/or Effective Candela for any distance is provided in additionto the calibration in Lux.Please note: Flashing source measurements (effective intensity)requires the use of the ILT1700 Research Radiometer and the SED, typedetector listed above.

HIGH-GAIN LUMINOUS INTENSITY/FLASH DETECTORIlluminance sensor equipped with a high-gain lens to amplify the inputsignal for beam candela measurements at distances of 25 feet or moreor for low light levels. Includes the Y filter, which was redesigned usingproprietary composite filter design software to match the CIE V(λ)Photopic curve within 1% total area error.Measurement Range with:� ILT1400 (SEL): 6.94e-4 to 2.43e+3 lux (steady sources only)� ILT1700 (SED): 1.39e-5 to 1.39e+4 luxSpectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 111-C1)Footprint: (48.32 mm x 42 mm dia)Order part number:SED033/Y/L30 (ILT1700) or SEL033/Y/L30 (ILT1400)Applications: This luminous intensity detector with it’s narrow field ofview (+/-8º), high-gain lens (L30) is specifically designed to amplify theinput signal from the light source 30 times for accurate intensity measure-ments at distances of 25 feet or more. The SEL033/Y/L30 used with theILT1400 is capable of non-flashing intensity measurements in candela.The SED033/Y/L30 (ILT1700 only) is unique in its ability to integrateintense flashes as brief as 5 microseconds without saturating the detec-tor, while autoranging over 7 decades at distances over 7.62 meters (25feet)! Since the human eye is 5 times more sensitive to a flashing sourcethan to a steady light, we designed our flash measurement system tomeasure both the flash integral (cd*s, lm*s/ft2, lux*s), and the flasheffective intensity (effective cd) of xenon flash lamps and most othertypes of flashing devices. Fresnel lenses are often used to concentrate aflash in the horizontal plane. It is necessary to measure these lensesfrom a substantial distance to determine the proper effect of the opticalsystem as it is normally viewed, making the total measurable energy fora short duration flash quite small. The high gain lens assembly increasesthe signal, improving the range down to 20 millicandela at a distance ofover 25 feet from flash sources as brief as 5 microseconds.Please note: Flashing source measurements (effective intensity)requires the use of the ILT1700 Research Radiometer and the SED, typedetector listed above.



Scotopic Illuminance DetectorsThe detectors in this section are specifically designed for scotopic (darkadapted human eye) illuminance applications. All are equipped with ourZCIE filter designed using proprietary composite filter software to matchthe CIE V(λ) Scotopic curve within 1% total area error.

SCOTOPIC ILLUMINANCE DETECTORDetector is fitted with our ZCIE filter to accurately match the wavelengthresponsivity of the human eye under dark adapted conditions.Measurement Range with:� ILT1400 (SEL): 1.67e-1 to 5.83e+5 lux� ILT1700 (SED): 3.33e-3 to 3.33e+6 luxMay also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 111-C2)Footprint: (32 mm x 42 mm dia)Order part number:SED033/ZCIE/W (ILT1700) or SEL033/ZCIE/W (ILT1400)Applications: Designed for highly accurate scotopic illuminance meas-urements. Standard cylindrical housing allows detector to be placed onflat surfaces, hand-held, or tripod/bench post mounted as well as easilybuilt into your own existing machinery, lamp housings, or test fixturing.Detector comes with calibrations for readout in foot-candles or lux.

Scotopic Luminance DetectorsThese scotopic detectors have special input optics restricting the field ofview (FOV) for geometrically accurate scotopic luminance (brightness)measurements of diffuse area sources such as LCDs, backlight panels, CRTs,lamp diffusers, and film readers either in contact or at distance. All areequipped with our ZCIE filter designed using proprietary composite filtersoftware to match the CIE V(λ) Scotopic curve within 1% total area error.

SCOTOPIC LUMINANCE DETECTORThis luminance detector includes a narrow field of view lens (±0.75º)with a 25.4 mm aperture for accurate distance luminance measure-ments. The fitted ZCIE filter accurately matches the wavelength respon-sivity of the human eye under dark adapted conditions.Measurement Range with:� ILT1400 (SEL): 2.33e-0 to 8.14e+6 cd/m2

� ILT1700 (SED): 4.45e-2 to 4.45e+7 cd/m2

Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 112-A1)Footprint: (87 mm x 42 mm dia)Order part number:SED033/ZCIE/R (ILT1700) or SEL033/ZCIE/R (ILT1400)Applications: Typically used to measure average scotopic luminance oflarge area LED modules, backlight panels, LCDs, CRTs, or other diffusearea sources 25.4 mm (1-inch) or larger in diameter. This detector is nottypically recommended for contact luminance measurements due to sec-ondary reflection characteristics. Detector comes with calibrations forreadout in foot-lamberts or candela/m2.


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Low-Light Illuminance/Luminance DetectorsThese self-contained photomultiplier detectors have extreme sensitivity (better than 1000 X that of astandard silicon photocell) without the added expense and complication of an external high-voltage power.Detectors in this section are preconfigured with either our narrow field of view optic and calibrated for lowlevel luminance measurements in candela per square meter (for diffuse light sources and illuminatedsurfaces larger than 25.4 mm in diameter) or equipped with our quartz cosine correcting diffuser for low-level illuminance measurements in Lux. Other ranges and combinations are available. Please contact ourknowledgeable sales staff for more information.

ILLUMINANCE PHOTOMULTIPLIERUltra-sensitive photomultiplier illuminance detector.Spectral Range: 400 -700 nmFootprint: (117 mm x 42 mm dia)Order part number: SPM068-1/PMY/QNDS3/W (ILT1700)Applications: Photomultiplier detector with built-in power supply is equipped with our proprietaryphotopic filter and a quartz cosine correcting diffuser for taking accurate illuminance measurements in verylow light level applications such as bioluminescence, phosphorescence, safety marking, and photoncounting. The detector comes equipped with a QNDS3 attenuator to prevent overexposure of the detectorbut it may be removed for ultra-sensitive light measurements. Calibrations in Lux and Foot-candles with andwithout the QNDS3 are provided.Please note: Care must be taken not to expose this detector to direct room or sunlight signals with theQNDS3 attenuator removed while the detector is connected to the meter to prevent irreparable damageto the photomultiplier tube.

LUMINANCE PHOTOMULTIPLIERUltra-sensitive luminance detector includes a narrow field of view optic for geometrically accurate low levelluminance measurements.Measurement Range with:Spectral Range: 400 -700 nmFootprint: (172 mm x 42 mm dia)Order part number: SPM068-1/PMY/QNDS3/R (ILT1700)Applications: This photomultiplier detector with built-in power supply is fitted with our proprietaryphotopic filter and a narrow field of view optic allowing geometrically accurate luminance measurements invery low light level applications such as bioluminescence, phosphorescence, safety marking, and photoncounting. The minimum spot size at a 1-inch distance is 25.4 mm in diameter. This detector is not typicallyrecommended for contact luminance measurements due to secondary reflection characteristics. The detectorcomes equipped with a QNDS3 attenuator to prevent overexposure of the detector but it may be removed forultra-sensitive light measurements. Calibrations in Candela per meter squared with and without the QNDS3are provided.Please note: Care must be taken not to expose this detector to direct room or sunlight signals with theQNDS3 attenuator removed while the detector is connected to the meter to prevent irreparable damageto the photomultiplier tube.



S O L A R M E A S U R E M E N T

The Sun is the most important lightsource we know

Can there be a more important light source in ourlives than the Sun? Not likely. Just a giant flamingball of gas at the center of our solar system, yet theSun is so much more than that to us: it heats ourplanet, drives the weather and ocean currents,keeps Earth from spinning out into space and pro-vides us with food. Yet, for all of the positive bene-fits we derive from the sun, we get our share ofnegative ones as well. The same Sun that cankeeps us warm and fed can also harm us and thematerials around us with heat and harmful ultravi-olet rays.

Solar simulators approximate thelight output of the sun for researchapplications

The Sun is a highly unique light source withtremendous light output covering a huge spectralrange from deep Ultraviolet-C (UVC) all the wayup into the Infrared (IR). UVC is filtered out by ouratmosphere leaving Ultraviolet-B (UVB),Ultraviolet-A (UVA), Visible (Vis), and IR. Since theweather on Earth is unpredictable, and the Sunoften obscured by clouds, scientists, engineers,and researchers have turned to simulating the sunin the lab giving them a much more reliable lightsource to work with. While the sun has anextremely broad output range, solar simulatorsare limited in the bands they can output by thelamps and spectral filters they use (sometimesband-pass or blocking filters must be swapped inand out of a simulator to achieve the proper out-put for the application). Simulators are not perfectmatches to the sun but for most solar applications,they provide an optimal practical solution.

Many industries use solar simulators forresearch and development

Solar simulators produce a simulated solar spectrumfor plant growth, material- degradation simulations,weathering tests for coatings, photovoltaic (PV) celltesting, sunblock evaluations, and window transmis-sion studies. Steady state solar simulators are general-ly used in laboratory or production environments forprecision testing and/or calibration of light-sensitive(e.g., photovoltaic) devices. Solar simulators are alsoused on terrestrial, aerospace and satellite products asa long-term simulated sunlight exposure system totest optical coatings, thermal control coatings, paints,etc. Pulse simulators make it possible to test largesolar panels at a fraction of the cost of steady statesolar simulators. Because the temperature of the solarcells under test is held constant, the need for thermo-couple testing is eliminated, resulting in savings inboth time and cost.

ILT offers specialized systems for testing Solar UVBwith a billion-to-one VIS/IR rejection. This is critical fortesting Solar UVB since nearly all of the sun's energy isin the longer wavelengths. We also have several sys-tems preconfigured for testing UVA, VIS, NIR and IR.

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S O L A R M E A S U R E M E N T S Y S T E M S

The following detectors, except the “Spectral Measurement System” sec-tion, require either an ILT1400 (SEL type detectors) or ILT1700 (SED typedetectors) instrument to make a complete measurement system. Alldetectors include one initial calibration. Additional calibrations may bepurchased for other measurement units depending on detector type.

Solar UV DetectorsDetectors in this section have been carefully designed to measure theminute amounts of solar UV light utilizing their high visible/IR rejection.

SOLAR UVB DETECTORThe extremely high visible/IR rejection of this specialized detector com-bination allows for the measurement of the miniscule amounts of UVBoutput from the Sun and solar simulators.Measurement Range with:� ILT1400 (SEL): 2.00e-6 to 2.00e-2 Watts/cm2


Spectral Range: 280 - 315 nmSpectral Graph: (page 121-A2)Footprint: (63 mm x 42 mm dia)Order part number: SED240/SPS300/T/W (ILT1700) orSEL240/SPS300/T/W (ILT1400)Applications: The specially designed SPS300 super solar-blind UV filterwhen used in conjunction with our SED(SEL)240 solar-blind vacuumphotodiode provides an incredible 1 billion-to-one visible/IR rejectionneeded to filter out the stronger output in the longer wavelengths. Thisdetector combination coupled with a specially integrated calibrationbelow 315 nm yields highly accurate UVB measurements.

SOLAR UVA DETECTORHigh visible/IR light rejection and our proprietary UVA filter make this theideal choice for solar UVA measurements.Measurement Range with:� ILT1400 (SEL): 2.33e-7 to 8.14e-1 Watts/cm2


May also be used with the ILT801 or OPM1 for long term processmonitoring. Contact a sales engineer for range selection.Spectral Range: 315 - 390 nmSpectral Graph: (page 118-A1)Footprint: (33 mm x 42 mm dia)Order part number: SED005/UVA/TD (ILT1700 or ILT801) orSEL005/UVA/TD (ILT1400)Applications: Similar to our SED(SEL)033/UVA/TD phototherapy UVAsensor, this sensor has a higher visible/IR rejection ratio along withgood sensitivity in the UVA making it ideal for almost any solar UVAapplication.


Visible Solar DetectorsDetectors in this section have a photopic “human eye” response filteralong with accurate Teflon or flashed opal cosine correctors for better IRrejection and can be used for almost any visible solar applications requir-ing readout in foot-candles or Lux. All are equipped with our new Y filterdesigned using proprietary composite filter software to match the CIEV(λ) Photopic curve within 1% total area error.

VISIBLE SOLAR DETECTOR WAND

Broad-range photometric illuminance detector in an ergonomichand-held wand housing. Good IR rejection for accurate visiblesolar measurements.Measurement Range with:� ILT1400 (SCL): 1.67e-1 to 5.83e+5 Lux� ILT1700 (SCD): 3.33e-3 to 3.33e+6 LuxSpectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 117-C1)Footprint: (page 122-D)Order part number: SCD110 (ILT1700) or SCL110 (ILT1400)Applications: Detector offers highly accurate, broad-range photometricilluminance measurements in a compact ergonomic wand-shaped hous-ing. Detector was specifically designed for hand-held use but may beaccurately placed on flat surfaces as well. Includes an integrated flashedopal diffuser. Detector comes with calibrations for readout in foot-can-dles or lux.Please note: Optics are non-removable in wand detectors.

VISIBLE SOLAR DETECTORSimilar to our standard photometric detector, this broad-range illumi-nance detector includes a Teflon diffuser in place of the standard quartzfor better cosine response in the visible spectrum making it ideal forsolar photometric measurements.Measurement Range with:� ILT1400 (SEL): 5.56e-3 to 1.94e+4 Lux� ILT1700 (SED): 1.11e-4 to 1.11e+5 LuxMay also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 111-B1)Footprint: (36 mm x 42 mm dia)Order part number:SED033/Y/TD (ILT1700 or ILT801) or SEL033/Y/TD (ILT1400)Applications: Designed for highly accurate, broad-range photometricilluminance measurements. Standard cylindrical housing allows detectorto be placed on flat surfaces, hand-held, or tripod/bench post mountedas well as easily built into your own existing machinery, lamp housings,

or test fixturing. Includes our Teflon diffuser for better spatial responsefor visible spectrum solar applications. Detector comes with a calibrationfor readout in foot-candles or lux.

UV/Vis/IR DetectorsThese detectors have extremely broad spectral responses ranging fromthe deep UV all the way up into the Near-IR for near total solar outputapplications.

BROADBAND SOLAR IRRADIANCE DETECTORDesigned to measure broadband solar irradiance from 200 to 1100 nm.Measurement Range with:� ILT1400 (SEL): 5.00e-7 to 1.75e+0 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 200 - 1100 nm, peak at 910 nmSpectral Graph: (page 112-A2)Footprint: (32 mm x 42 mm dia)Order part number:SED033/QNDS2/W (ILT1700) or SEL033/QNDS2/W (ILT1400)Applications: This silicon photodiode detector has a very wide spectralrange from 200 to 1100 nm and includes a 100-times attenuator filterfor measuring high solar exposure levels. Like all silicon photodiodes,this detector has a higher overall sensitivity than thermopile basedbroad-band solar irradiance detectors. It has a faster response time, andis less susceptible to errors from heat buildup but is less flat across itsspectral response range than a thermopile weighting its responsetowards the near-IR.


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BROADBAND THERMOPILE SOLAR IRRADIANCE DETECTORDesigned to measure broadband solar irradiance from 200 to 2100 nm.Measurement Range with:� ILT1400 (SEL): 6.92e-4 to 3.35e+0 Watts/cm2


Spectral Range: 200 - 2100 nm, flat above 700 nmSpectral Graph: (page 118-A2)Footprint: (73 mm x 42 mm dia)Order part number: SED623/QNDS1/W (ILT1700) or SEL623/QNDS1/W (ILT1400)Applications: This thermopile-based detector with a quartz window has a very wide spectral range from200 to 2100 nm and includes a 10-times attenuator for measuring high output solar exposure levels. Thisdetector, while it has a very broad spectral response ranging from 200 nm in the UV up to 2,100 nm in thenear-IR, is primarily a near-IR detector with a flat response above 700 nm. Also, by the very nature of ther-mopile-based detectors, this detector is heat sensitive and exposure to heat sources including the measure-ment source, should be kept to a minimum and the detector allowed to cool between readings.

Spectral Measurement SystemThe ILT900 Portable Wideband Spectroradiometer System can measure the spectral output of a wide rangeof radiometric light sources including the Sun and solar simulators in Watts per nanometer or Watts persquare centimeter per nanometer. The ILT900 includes an initial calibration and additional calibrations maybe purchased for other measurement units depending on system configuration. The ILT900 does require apersonal computer.


ILT900Spectroradiometer-based system for spectral analysis of most types of radiometric light sources.Spectral Range: 250 – 950 nmMeasures: Watts/cm2/nm, Watts/nm, lumens/nm, lumens/m2/nm, candela (CIE127), chromatic analysisApplications: The ILT900 is a complete, turnkey system enabling spectral, radiometric, photopic, and colori-metric analysis of a large array of light sources over a wide spectral range from the UV, through the visible,and into the near-infrared.

See page 97 for a list of accessories for the ILT900.



L A S E R M E A S U R E M E N T

Laser = Light Amplificationby Stimulated Emission of Radiation

Just the word “laser” can invoke fantastic imagesof sleek, marvelous looking ships whirling aroundin space shooting neon beams of destructive lightat each other. In others, it may suggest dark,smoky, dance clubs with blasts of colorful light insync with the spine-shattering bass-heavy music.Yet in others it may mean something more mun-dane but perhaps a bit more productive and cer-tainly more realistic, such as a pinpoint accuratesurgical laser used for removing cancerous tumorsfrom deep with the human brain. Whateverimages the word “laser” conjures; it does in factmean one thing, Light Amplification byStimulated Emission of Radiation.

Lasers Are AHighly VersatileLight Source

Lasers produce collimated, nearly monochromaticlight through a complex interaction of an energysource causing the excitation of the laser medium.That reaction gives off light in the form of sponta-neous emissions which are then passed back andfourth many times through the medium via an

optical resonator, amplifying the light as it passesthrough each time. Eventually the light passesthrough the optical coupler (a semi-reflective mirrorof the optical resonator) as the output beam whenthe desired frequency of the light is achieved. Theexact type of beam (beam size, wavelength, and out-put power) produced by a laser is dictated by thesource energy and the laser medium used. Essentially,the laser medium transfers and amplifies the sourceenergy into the laser beam by way of the optical cav-ity. There are numerous media used in lasers today,such as organic dyes, gas or gas mixtures, pure ordoped crystals, doped glasses, and semiconductorswith each exhibiting different optical beam charac-teristics. The choice will depend on the desired beamcharacteristics and the source energy used. The laser’senergy source, often called the pump source, and theefficiency at which it can transfer its energy to themedium will determine the optical power and wave-length output of the laser. Flash lamps, electrical dis-charges, sun light, chemical reactions, other lasers,and even nuclear fission are all examples of laserpump sources. The more pump energy that can betransferred to the medium and the more gain (ampli-fication) the medium can provide, the more powerthe output laser beam will have. Some lasers are evenoperator tunable for both wavelength and output

power by varying the pump source and medium.The available variations in pump sources and lasermedia make for a very versatile light source withstandard designs covering a large range of wave-lengths and output power. Lasers have foundwidespread use in applications varying from themost common consumer electronics such as CDand DVD players to military and astronomicaltracking, guidance, and targeting systems, fromhigh-powered metal cutting and welding applica-tions to ultra-precision surgical lasers.

Laser Power Output Is A Critical Designand Safety Element

Output power and wavelength are critical designelements when working with lasers both in termsof their ability to do the required task at hand aswell as human safety factors. The federal govern-ment regulates lasers which are classified for thedamaging effects by their output power. For thesereasons, manufacturers of lasers and manufactur-ers designing products that utilize lasers typicallyare required to verify the power output. Verificationof a laser’s power output is complicated by thenecessity of sensors with flat spectral response andspecialized input optics capable of capturing theentire light beam.

International Light Technologies has a wide arrayof light measurement systems specificallydesigned to make taking laser power measure-ments simple. Our ILT1400 Hand-Held Radiometerequipped with one of our laser power detectorscan measure low-power, Argon, He-Ne, NdYaGcontinuous wave lasers and laser diodes. Upgradeto the ILT1700 Research Radiometer for increaseddynamic range for measuring more powerful con-tinuous wave lasers and laser diodes as well aspulsed lasers with a pulse width greater than 5microseconds.

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L A S E R M E A S U R E M E N T S Y S T E M S

The following detectors require either an ILT1400 (SEL type detectors) or ILT1700 (SED type detectors) instru-ment to make a complete measurement system. All detectors include one initial calibration. Additional cali-brations may be purchased for other measurement units depending on detector type.

UV Laser Power DetectorsThe detectors in this section are primarily designed for measuring power output from specialized UV lasers butmay also include additional response capabilities into the visible portion of the spectrum. All include ourHNK15 narrow beam input optic set.

DEEP UV LASER POWER DETECTORMeasures low-power UV lasers down into the UVC range.Measurement Range with:� ILT1400 (SEL): 3.33e-6 to 3.33e-2 Watts� ILT1700 (SED): 6.67e-8 to 3.33e-2 WattsSpectral Range: 185 to310 nm, Calibration wavelength: 254 nmSpectral Graph: (page 121-B2)Footprint: (131.3 mm x 42 mm dia)Order part number: SED240/HNK15 (ILT1700) or SEL240/HNK15 (ILT1400)Applications: Includes our special HNK15 narrow beam input optic set consisting of three internal quartz dif-fusers, an internal integrating chamber, and a cone aperture which combine to produce a large effective 10mm diameter input target with uniform translation response, eliminating beam aiming errors while providingproper beam diffusion and attenuation. This particular detector was designed for measuring power output inWatts from low-power UV lasers down into the UVC range.

UV Laser Power Detectors (continued)

UV/VISIBLE LASER POWER DETECTORMeasures mid-power UV through visible wavelength lasers.Measurement Range with:� ILT1400 (SEL): 1.10e-6 to 3.89e+0 Watts� ILT1700 (SED): 2.20e-8 to 2.20e+1 WattsSpectral Range: 250 to 675 nm, Calibration wavelength: 633 nmSpectral Graph: (page 118-B1)Footprint: (98.3 mm x 42 mm dia)Order part number:SED005/HNK15 (ILT1700) or SEL005/HNK15 (ILT1400)Applications: Includes our HNK15 special input optic set consisting ofthree internal quartz diffusers, an internal integrating chamber, and acone aperture which combine to produce a large effective 10 mm diame-ter input target with uniform translation response, eliminating beamaiming errors while providing proper beam diffusion and attenuation.This versatile detector is calibrated for measuring power output in Wattsfrom mid-power lasers from the mid UVC up into the upper visible range.

Visible/Near-Infrared Laser Power DetectorsVisible and near-infrared light lasers make up the majority of the mostcommonly available lasers and consist of an incredibly diverse range ofwavelengths and output power. The detectors in this section are all fit-ted with our flat response filter to accurately measure laser power fromthe visible to the NIR portion of the spectrum and are broken down bytheir power measurement capabilities. Some include our HNK15 narrowbeam input optic set while others include integrated input optics.

MINIATURE VISIBLE/NIR LASER POWER DETECTORPen probe detector has built-in miniature integrating sphere with 5mmaperture for measuring moderate-power visible/NIR lasers.Measurement Range with:� ILT1400 (SEL): 1.25e-7 to 4.38e-1 Watts� ILT1700 (SED): 2.50e-9 to 2.50e+0 WattsSpectral Range: 400 to 1064 nm, Calibration wavelength: 633 nmSpectral Graph: (page 115-B2)

Footprint: (page 122-E)Order part number: SPD024F (ILT1700) or SPL024F (ILT1400)Applications: Includes an internal miniature integrating sphere with a 5mm diameter input aperture which eliminates beam aiming errors whileproviding proper beam diffusion and attenuation. This detector is config-ured with a flat spectral response for accurate measurement of laserpower in Watts from the visible up into the NIR portion of the spectrum.

COMPACT VISIBLE/NIR LASER POWER DETECTORThis detector has a flat response filter with integrated attenuation formeasuring low-power visible/NIR lasers.Measurement Range with:� ILT1400 (SEL): 9.09e-9 to 3.18e-2 Watts� ILT1700 (SED): 1.82e-10 to 1.82e-1 WattsSpectral Range: 400 to 1064 nm, Calibration wavelength: 633 nmSpectral Graph: (page 118-B2)Footprint: (33 mm x 42 mm dia)Order part number:SED100/FQ/K15 (ILT1700) or SEL100/FQ/K15 (ILT1400)Applications: This detector includes an attenuated flat response filterfor increased measurement accuracy across the full spectral range of thedetector. With its increased cell area reducing the need for additionalnarrow beam optics and the use of an integrated attenuator, this detec-tor is more economical and more compact then a typical laser powerdetector. Includes our K15 cone aperture as a beam targeting aid.Measures laser power in Watts of low-power lasers from the visible upinto the NIR portion of the spectrum.

VISIBLE/NIR LASER POWER DETECTORMeasures moderate-power visible/NIR lasers.Measurement Range with:� ILT1400 (SEL): 3.65e-7 to 1.28e+0 Watts� ILT1700 (SED): 7.30e-9 to 7.30e+0 WattsSpectral Range: 400 to 1064 nm, Calibration wavelength: 633 nmSpectral Graph: (page 112-B1)Footprint: (103.3 x 42 mm dia)Order part number:SED033/F/HNK15 (ILT1700) or SE033/F/HNK15 (ILT1400)Applications: Includes our HNK15 special input optic set consisting ofthree internal quartz diffusers, an internal integrating chamber, and acone aperture which combine to produce a large effective 10 mm diam-eter input target with uniform translation response, eliminating beamaiming errors while providing proper beam diffusion and attenuation.This versatile detector is equipped with our flat response filter for bettermeasurement accuracy across the full spectral range of the detector.Measures power output in Watts from moderate-power lasers from thevisible up into the NIR portion of the spectrum.



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ATTENUATED VISIBLE/NIR LASER POWER DETECTORMeasures high-power visible/NIR lasers.Measurement Range with:� ILT1400 (SEL): 6.10e-4 to 2.00e+2 Watts� ILT1700 (SED): 1.22e-5 to 2.00e+2 WattsSpectral Range: 400 to 1064 nm, Calibration wavelength: 633 nmSpectral Graph: (page 112-B2)Footprint: (108.3 mm x 42 mm dia)Order part number: SED033/F/QNDS3/HNK15 (ILT1700) or SE033/F/QNDS3/HNK15 (ILT1400)Applications: Includes our HNK15 special input optic set consisting of three internal quartz diffusers, aninternal integrating chamber, and a cone aperture which combine to produce a large effective 10 mmdiameter input target with uniform translation response, eliminating beam aiming errors while providingproper beam diffusion and attenuation. This detector has been fitted with an attenuation filter for increasedmeasurement range for high-power laser measurements and is equipped with our flat response filter forbetter measurement accuracy across the full spectral range of the detector. Measures power output in Wattsfrom high-power lasers from the visible up into the NIR portion of the spectrum.

Broad-range Thermopile Laser Power DetectorsBroad-range thermopile laser power detectors have an incredibly wide spectral response range and canmeasure continuous wave lasers from the UVC up into the IR portion of the spectrum without having toswap detectors.

BROAD-RANGE CONTINUOUS WAVE LASER POWER DETECTORMeasures high-power continuous wave lasers from the UVC up into the NIR portion of the spectrum.Measurement Range with:� ILT1400 (SEL): 3.86e-3 to 1.87e+1 Watts� ILT1700 (SED): 3.86e-4 to 4.29e+1 WattsSpectral Range: 200 to 2100 nm, Calibration wavelength: 673 nmSpectral Graph: (page 118-C1)Footprint: (139.3 mm x 42 mm dia)Order part number:SED623/HNK15 (ILT1700) or SEL623/HNK15 (ILT1400)Applications: Includes our HNK15 special input optic set consisting ofthree internal quartz diffusers, an internal integrating chamber, and acone aperture which combine to produce a large effective 10 mm diame-ter input target with uniform translation response, eliminating beamaiming errors while providing proper beam diffusion and attenuation.This broad-range thermopile-based detector can measure laser power inWatts across a 200 to 2100 nm spectral range and has a very flat spectralresponse above 700 nm. Inherent thermopile insensitivity, while allow-ing for an increased power measurement range, limits this detectors useto continuous wave lasers only.



O P T I C A L R A D I A T I O N H A Z A R D M E A S U R E M E N T

The Sun is just one of many opticalradiation hazards we may encounter

You hear about it on the television and radio, inhealth class and at your doctor’s office, in fact, allover the place all the time: overexposure to directsunlight is bad for your skin. It prematurely agesyou and can lead to skin cancer. Not to mentionthose painful sunburns. It’s been repeated overand over again so much that you hardly ever seeanyone not applying some kind of sun block lotion,lip balm, or other product just to go outside for aquick walk. Truth of the matter is that there aremany other types of hazardous optical lightsources out there besides the sun. Many of whichare commonly encountered items.

Many common light sources canproduce various damaginghealth conditions

Welding equipment, lasers, office copiers, air ster-ilizers, and infrared heat lamps are some of themore commonly encountered optical radiationhazards. While most people are familiar with thedamaging effects of continued exposure to thesun or even of the dangers of short-term exposureto welding equipment, many people are notfamiliar with the more subtle, but equally damag-ing optical radiation hazards presented by some ofthese other sources. Artificial UV light sources,useful for photo-etching, curing adhesives, paintand coatings, air, water sterilization, and con-trolled plant growth isn’t visible to the human eyeand can go undetected without realizing the dam-

age that is being done until it is too late. These artifi-cial sources can have UV levels many more times thatof the sun producing a risk for greater injury in lesstime. Although knowledge about optical radiationhazards from UV light sources may be more obvious,thanks in large part to the sun and all of its publicity,the hazards presented by infrared and blue sourcesare just as real but far less known. Lasers, found inalmost every home or office in the shape of CD drives,DVD players, cutting equipment, measurementdevices, indicators, and as research tools can focustremendous amounts of optical energy into a tinyspot capable of tremendous amount of damage tothe human eye or skin. Even the smaller, less focusedbeams caused by scattering pose potential hazards.Some of the harmful effects which can be producedby these types of sources as well as others can includeerythema (skin redness), photokeratosis (inflamma-tion of the cornea more commonly referred to as“snow blindness”), skin cancer, Vitiligo (de-pigmen-tation of the skin), conjunctivitis, and temporary orpermanent loss of vision. Continuous or repetitiveexposure to low level sources may produce cumula-tive damage such as cataracts, blindness and cancer.

Safety professionals must weightthe risks against the benefits

While all these sources have great benefits, the risksare there and must carefully be accounted for and per-sonnel protection assured. Industrial hygienists, safetyengineers, and public health officials must weigh thefactors of human health, safety, and well beingagainst any benefits derived from such sources. Asthese sources have grown more commonplace, so toohas the assessment of these hazards through directmeasurement of their light output against nationaland/or international standards for acceptable levels ofhuman exposure.

International Light Technologies has a carefullydesigned selection of instruments for almost anyOptical Radiation Hazard application.

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The following detectors, except the “Spectral Measurement System” section, require either an ILT1400 (SELtype detectors) or ILT1700, ILT801, or OPM1D (SED type detectors) instrument to make a complete measure-ment system and are available in optional waterproof versions for use in harsh environments. All detectorsinclude one initial calibration. Additional calibrations may be purchased for other measurement unitsdepending on detector type.

Optical Hazard DetectorsDetectors in this section cover the most commonly measured optical hazard functions from the UV throughthe Visible and into the IR.

ACTINIC OPTICAL RADIATION HAZARD DETECTORSpecially designed with proprietary filtration for easy and accurate optical radiation hazard measurements inthe UV Actinic range.Measurement Range with:� ILT1400 (SEL): 1.49e-7 to 1.49e-30 eff W/cm2

� ILT1700 (SED): 5.00e-9 to 2.50e-3 eff W/cm2

UV Actinic Hazard Spectral Range: 180 – 400 nmSpectral Graph: (page 120-C1)Footprint: (68 mm x 42 dia)Order part number: SED240/ACT5/W (ILT1700) or SEL240/T2ACT5 (ILT1400)Applications: This detector has been fitted with our proprietary UV Actinic Hazard filter giving the detectorthe required spectral response for taking UV optical radiation hazard measurements. Calibrated for readoutin effective Watts per square centimeter. For compliance with UV hazard measurement standards thatrequire instrumentation that can measure 0.1 microWatts per squared centimeter or better, the ILT1700and SED240/ACT5/W UV Actinic Hazard Detector combination is required.


Optical Hazard Detectors (continued)

UV SENSITIVITY HAZARD DETECTORDesigned with high sensitivity across a broad portion of the UV bandfrom 250 to 400 nm for UV sensitivity hazard measurements.Measurement Range with:� ILT1400 (SEL): 1.82e-7 to 6.36e-1 W/cm2

� ILT1700 (SED): 2.33e-9 to 2.33e+0 W/cm2

Spectral Range: 250 – 400 nmSpectral Graph: (page 115-C1)Footprint: (32 mm x 42 mm dia)Order part number:SED005/WBS320/W (ILT1700) or SEL005/WBS320/TD (ILT1400)Applications: This detector is specially configured to accurately measureacross a broad portion of the UV band for total UV sensitivity hazardmonitoring.

BLUE LIGHT HAZARD RADIANCE DETECTORSpecially configured for blue light hazard measurements withconformance to the human eye stimulation requirements.Calibrated for radiance measurements in W/cm2/sr.Measurement Range with:� ILT1400 (SEL): 2.78e-7 to 9.72e-1 W/cm2/sr� ILT1700 (SED): 5.56e-9 to 5.56e+0 W/cm2/srBlue Hazard Spectral Range: 305 – 700 nmSpectral Graph: (page 112-C1)

Footprint: (95 mm x 42 mm dia)Order part number:SED033/TBL/SC/R (ILT1700) or SEL033/TBL/SC/R (ILT1400)Applications: This detector was designed to conform to the human eyestimulation requirements for making blue light hazard measurements.Equipped with our R Radiance/Luminance barrel for the required narrowfield of view (± 0.75º). Calibrated to measure radiance directly inW/cm2/sr.

BLUE LIGHT HAZARD DETECTORSpecially configured for blue light hazard measurements withconformance to the human eye stimulation requirements.Calibrated to measure irradiance in W/cm2.Measurement Range with:� ILT1400 (SEL): 3.70e-8 to 1.30e-1 W/cm2

� ILT1700 (SED): 7.41e-10 to 7.41e-1 W/cm2

Blue Hazard Spectral Range: 305 – 700 nmSpectral Graph: (page 112-C2)Footprint: (41 mm x 42 mm dia)Order part number: SED033/TBLU/SCS395/TD (ILT1700) orSEL033/TBLU/SCS395/TD (ILT1400)Applications: This detector was designed to conform to the human eyestimulation requirements for making blue light hazard measurements.Calibrated to measure radiance directly in W/cm2.


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IR-A/NIR HAZARD DETECTORDesigned with the required high sensitivity in the near-infrared (NIR) portion of the spectrum for makingIR-A/NIR hazard measurements.Measurement Range with:� ILT1400 (SEL): 3.57e-9 to 1.25e-2 Watts/cm2


NIR Hazard Spectral Range: 770 – 1,400 nmSpectral Graph: (page 115-C2)Footprint: (27 mm x 42 mm dia)Order part number: SED007/W (ILT1700) or SEL007/W (ILT1400)Applications: Designed with high sensitivity in the near-infrared spectrum for taking IR-A and NIR hazardmeasurements. This detector has nearly 1,000 times the sensitivity in the near-infrared spectrum of ourSED(SEL)623 thermopile-based infrared detector.

INFRARED HAZARD DETECTORDesigned for taking accurate IR hazard measurements in W/cm2.Measurement Range with:� ILT1400 (SEL): 8.57e-5 to 4.14e-1 Watts/cm2


IR Hazard Spectral Range: 770 - 3000 nmSpectral Graph: (page 118-C2)Footprint: (27 mm x 42 mm dia)Order part number: SED623/SCS695/W (ILT1700) or SEL623/SCS695/W (ILT1400)Applications: Thermopile-based detector with a quartz window providing the ideal sensitivity for makingthermal irradiance hazard measurements. Please note, that by the very nature of thermopile-based detectors,this detector is heat sensitive and exposure to heat sources including the measurement source, should be keptto a minimum and the detector allowed to cool between readings.

Spectral Cataract Surgery Hazard Measurement SystemThe ILT900 Portable Wideband Spectroradiometer System can measure the spectral output of a wide range ofUV and UV/Visible curing light sources in Watts per nanometer or Watts per square centimeter per nanometer.The ILT900 includes an initial calibration and additional calibrations may be purchased for other measurementunits depending on system configuration. The ILT900 does require a personal computer.


ILT900Spectroradiometer-based system for spectral analysis of many types of hazardous light sources.Spectral Range: 250 – 950 nmMeasures: Watts/cm2/nm, Watts/nm, lumens/nm, lumens/m2/nm, candela (CIE127), chromatic analysisApplications: The ILT900 is a complete, turnkey system enabling spectral, radiometric, photopic, and colori-metric analysis of a large array of light sources over a wide spectral range from the UV, through the visible,and into the near-infrared.




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region of the solar spectrum corresponds to theportion of light that is visible to humans. Withinthe PAR region of the spectrum, the light is furtherbroken down into the primary plant growth bandsof blue, red, and far red. Understandably, themeasurement of the PAR region and the individualplant growth bands is very important in modernagriculture, forestry, and oceanography. PARmeasurement is an indicator of productive farm-land and can be used as a means of judging invest-ment potential. Through the use of sensors, mapsof PAR availability and utilization throughoutentire ecosystems such as the ocean reefs and rain-forest canopies can be developed for conservationand reclamation as well as commercial agriculture.

Several available plantgrowth systems

International Light Technologies provides a com-plete range of plant growth radiometers includinga system with a PAR plant growth detector thatwas designed through the joint efforts ofInternational Light Technologies and a team ofplant physiologists, to specifically measure theeffect of light on plant growth in the PAR region ofthe spectrum. Detectors configured to measurethe individual plant growth bands are also avail-able as well as the ILT900 Portable WidebandSpectroradiometer, a powerful spectral analysistool capable of working in the harsh environmentstypical of plant growth studies.

Plants and technology work togetherto feed a hungry world

Plants dominate the world. They provide theworld’s oxygen supply and are a primary source offood for countless other living organisms includ-ing an ever expanding human population. Is itany wonder why, as a society, we have made hugeleaps in plant growth technology? In the relative-ly short period of time humans have lived onearth, we have gone from foraging to farming andfrom invoking the gods, spirits, totems or evenmagic to aid in harvesting enough food from thesoil to feed a hungry world to invoking the powerof human knowledge and applied science in anever-ending attempt to try and guarantee it. Theox and the plow have given way to advanced com-puter driven machinery. Simple irrigation ditchesare yielding to self-powered, central-pivot irriga-tion systems. New species of plants can bedesigned in the lab to yield more desirable charac-teristics. The planting seasons can now be extend-ed through the use of sophisticated, climate con-trolled greenhouses and even the soil itself thatplants have grown in for millions of years can now

be replaced through hydroponics. Through all of thisinvention and reinvention of plant technology, onething has remained relatively the same, the plantsamazing ability to keep the world going.

Accuratemeasurement of lightis PAR for the course

Through no small miracle, plants change the lightthey receive from the sun, water, and the carbon diox-ide animals exhale into the chemical energy theyneed for growth in a process called Photosynthesis.The interaction of light and plant is a complex scienceinvolving various pigments within the plant such aschlorophyll, carotenes , and xanthophylls that reflector absorb energy from certain wavelengths of thelight they receive to maximize the photosynthesisprocess. Understanding the exact variables within thelight source and their effects on the plant is crucial tobeing able to understand how to produce bigger andbetter plants and to maximize their numbers in tradi-tional and artificial growing environments. PAR, orPhotosynthetically Active Radiation, is the namegiven to the band of solar light that is useful to plantsin the intake of energy and production of oxygen. This

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The following detectors, except the “Spectral Measurement System” sec-tion, require either an ILT1400 (SEL type detectors) or ILT1700 (SED typedetectors) instrument to make a complete measurement system and areavailable in optional waterproof versions for use in harsh environments.All detectors include one initial calibration. Additional calibrations maybe purchased for other measurement units depending on detector type.

PAR DetectorsThe detectors in this section have a flat response through the three pri-mary plant growth bands and read out in micro-Einsteins per squarecentimeter per second or micro-moles.

PAR DETECTORDesigned to measure the effect of light on plant growth, the PAR detec-tor has a flat quanta response through the three primary plant growthband: blue, red, and far red.Measurement Range with:� ILT1400 (SEL): 3.33e-9 to 1.17e-2 E/m2/second� ILT1700 (SED): 5.00e-10 to 5.00e-1 µE/cm2/secondMay also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 410 to 770 nmSpectral Graph: (page 113-A1)Footprint: (40 mm x 42 mm dia)Order part number:SED033/PAR/W (ILT1700) or SEL033/PAR/QNDS1/W (ILT1400)Applications: These detectors are designed to measure PAR orPhotosynthetic Active Radiation. The equipped PAR filter gives flat quan-ta response through the three primary plant growth bands: blue, red,

and far red and the detectors are calibrated to measure in micro-Einsteins per second per unit area to give a photon weighted measure-ment of the effective irradiance in a single measurement. These detec-tors can also be calibrated to measure in moles on request.

Individual Plant Growth Band DetectorsUnlike the PAR detectors above which measure all three plant growthbands in a single reading, the detectors in this section measure individ-ual plant growth bands in watts per square centimeter.

BLUE BAND PLANT GROWTH DETECTORDesigned to measure the irradiance of the blue primary plant growthband only.Measurement Range with:� ILT1400 (SEL): 1.43e-8 to 5.00e-2 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 370-515 nm, Calibration at 450 nmSpectral Graph: (page 113 -A2)Footprint: (35 mm x 42 mm dia)Order part number:SED033/TBLU/W (ILT1700) or SEL033/TBLU/W (ILT1400)Applications: This detector is designed to assist the user in measuringthe photobiological effects of blue light on plant growth but can be usedin other applications requiring response in the blue visible portion of thespectrum.

Individual Plant Growth Band Detectors (continued)

RED BAND PLANT GROWTH DETECTORDesigned to measure the irradiance of the red primary plant growthband only.Measurement Range with:� ILT1400 (SEL): 5.88e-9 to 2.06e-2 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 610-730 nm, Calibration at 633 nmSpectral Graph: (page 113-B1)Footprint: (35 mm x 42 mm dia)Order part number:SED033/TRED/W (ILT1700) or SEL033/TRED/W (ILT1400)Applications: This detector is designed to assist the user in measuringthe photobiological effects of red light on plant growth but can beused in other applications requiring response in the red visible portionof the spectrum.

The 8-Channel ILT801 DataAcquisition System is perfect forlong-term monitoring of multipleplant growth detectors simultane-ously. You can find the ILT801 sys-tem on page 11. Contact a salesengineer for more information.

FAR RED BAND PLANT GROWTH DETECTORDesigned to measure the irradiance of the far red primary plant growthband only.Measurement Range with:� ILT1400 (SEL): 7.36e-9 to 2.58e-2 Watts/cm2


May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 710-810 nm, Calibration at 740 nmSpectral Graph: (page 113-B2)Footprint: (35 mm x 42 dia)Order part number:SED033/TFRD/W (ILT1700) or SEL033/TFRD/W (ILT1400)Applications: This detector is designed to assist the user in measuringthe photobiological effects of far red light on plant growth but can beused in other applications requiring response in the far red visible por-tion of the spectrum.

Spectral Measurement SystemILT900 Spectroradiometer-based system for measurement and chromaticanalysis in Watts per nanometer or lumens per nanometer, Watts persquare centimeter per nanometer, micro-Einsteins per square centimeterper second, lux, color coordinates, dominant/complementary wave-length and purity, color rendering index, and coordinated color tempera-ture depending on system configuration. Systems include initial calibra-tion. Additional calibrations may be purchased for other measurementunits depending on system configuration. All systems in theSpectral/Color section below require a personal computer.


ILT900Spectroradiometer-basedsystem for spectral analysisof most types of radiomet-ric and photometric lightsources.Spectral Range:250 – 950 nmMeasures: Watts/cm2/nm,Watts/nm, lumens/nm,lumens/m2/nm, candela(CIE127), micro-Einsteins, chromatic analysisApplications: The ILT900 is a complete, turnkey system enabling spec-tral, radiometric, photometric, and colorimetric analysis of a large arrayof light sources over a wide spectral range from the UV, through the visi-ble, and into the near-infrared.


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of the desired treatment site from the PDT lightsource by the use of specially designed outputoptics. Because of the high exposure precisionrequired, lasers are often used due to their focusedoutput and visible light output, which is thepredominant portion of the spectrum used in PDTtreatments. However, if a wavelength of light isrequired that is not producible from a laser orwhen a broader spectral output is needed orgreater area coverage, other types of light sourcescan deliver the required illumination to thetreatment site with pinpoint accuracy via fiberoptics.

PDT light sourcemeasurement solutions

Monitoring the amount of exposure to a PDT lightsource is absolutely critical in preventingunwanted tissue damage to the patient whilemaintaining the desired efficacy. InternationalLight Technologies has a selection of PDT specificsystems designed for highly accurate intensity,exposure, and spectral wavelength measurementof a wide array of PDT light sources in bothlaboratory and clinical environments.

Photodynamic Therapy is a specialtype of phototherapy aimed attreating cancer and various otherskin conditions

Phototherapy is defined as the treatment ofmedical, psychological, or cosmetic conditions byexposure to light. Photodynamic Therapy or PDT isa specialized type of phototherapy for thetreatment of cancers and various other skinconditions. Like some phototherapy treatments,PDT uses photosensitizers, but in a different way.Photosensitizers are chemicals that increase thesensitivity of an organism either locally orsystemically to exposure to light. In generalizedphototherapy, the light source itself produces thedesired effect directly. The photosensitizerincreases the efficiency allowing effectivetreatment at lower exposures or faster treatmentsat standard exposures. In PDT the photosensitizeris a required component and reacts to exposurefrom the light source producing a byproduct thatitself is highly reactive with the undesirable tissuecells and is the actual treatment.

Careful control of and exposureto the light source is critical forsuccessful treatment

PDT photosensitizers are specifically designed tobe attracted to or absorbed by metabolically fastcells such as cancer cells and may be directlydelivered to the treatment site, taken orally, orintravenously. Once the photosensitizer has beendelivered, the site is exposed to a specific spectralband of light causing a series of reactions in thephotosensitzer resulting in the formation ofsinglet oxygen. The singlet oxygen is itself a veryaggressive chemical species causing damage tocertain biological cells. That damage is confined toareas where the photosensitizer is present andthen exposed to the PDT light source. In thisrespect, PDT is a very selective form of treatmentsince the mobility of the photosensitizer can bevaried by delivery method and specific cells can betargeted by the careful design of thephotosensitizer compounds. Even if other tissueshave attracted or absorbed the photosensitizerand will be effected by the reaction, theirunwanted damage is avoided by precise exposure

The following detectors require either an ILT1400 (SEL type detectors) orILT1700 (SED type detectors) instrument to make a complete measure-ment system. All detectors include one initial calibration. Additional cali-brations may be purchased for other measurement units depending ondetector type.

Visible/Near-Infrared Irradiance PDT DetectorsThe detectors in this section are designed to measure irradiance of laserand non-laser based photodynamic therapy sources in the visible andNIR portions of the spectrum. All detectors in this section are calibratedto measure in Watts per square centimeter.

VISIBLE/NIR IRRADIANCE PDT DETECTORVisible/NIR detector with a near-flat spectral response for measuringirradiance.Measurement Range with:� ILT1400 (SEL): 7.69e-9 to 2.69e-2 Watts/cm2


Spectral Range: 400 - 1064 nmSpectral Graph: (page 110-A2)Footprint: (32 mm x 42 mm dia)Order part number: SED033/F/W (ILT1700) or SEL033/F/W (ILT1400)Applications: Designed to measure irradiance from a wide variety of vis-ible and near-IR photodynamic therapy sources. Includes our flatresponse filter for increased accuracy and a flat spectral response from400 to 1064 nm.

SMALL SPOT VISIBLE/NIR IRRADIANCE PDT DETECTORVisible/NIR detector with a near-flat spectral response and a 1.0 mminput aperture for measuring irradiance of small spot delivery methodssuch as fiber optics and light guides.Measurement Range with:� ILT1400 (SEL): 7.69e-9 to 2.69e-2 Watts/cm2


Spectral Range: 400 - 1064 nmSpectral Graph: (page 113-C1)Footprint: (30 mm x 42 mm dia)Order part number: SED033/F/P1 (ILT1700) or SEL033/F/P1 (ILT1400)Applications: Specially configured detector with a 1mm aperture formeasuring irradiance, in contact or at a distance away, from a wide vari-ety of visible and near-IR photodynamic therapy sources with narrowoutput beams greater than 1 mm in diameter. This detector can also beused for measuring uniformity across the tips of fiber optic and lightguide delivery systems. Includes our flat response filter for increasedaccuracy and a flat spectral response from 400 to 1064 nm.


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RED IRRADIANCE PDT DETECTORDesigned to measure the irradiance of red light sources only.Measurement Range with:� ILT1400 (SEL): 5.88e-9 to 2.06e-2 Watts/cm2


Spectral Range: 610-730 nm, Center wavelength at 633 nmSpectral Graph: (page 113-B1)Footprint: (35 mm x 42 mm dia)Order part number:SED033/TRED/W (ILT1700) or SEL033/TRED/W (ILT1400)Applications: This detector is designed to assist the user in measuringirradiance of red visible PDTlight sources.

FAR RED IRRADIANCE PDT DETECTORDesigned to measure the irradiance of far red sources only.Measurement Range with:� ILT1400 (SEL): 7.36e-9 to 2.58e-2 Watts/cm2


Spectral Range: 710-810 nm, Center wavelength at 740 nmSpectral Graph: (page 113-B2)Footprint: (35 mm x 42 mm dia)Order part number:SED033/TFRD/W (ILT1700) or SEL033/TFRD/W (ILT1400)Applications: This detector is designed to assist the user in measuringirradiance of far red visible PDT light sources.

Need to measure the power output of your PDT source?Please see our laser power applications selection on page 56 for a diverseselection of laser power measurement systems and detectors to meet yourPDT application requirements.

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work where the photo-sensitive inks and pig-ments used will degrade with exposure to light,causing costly or even irreparable damage. Inthese cases the exposure of the object to any lightsource is not desirable but unfortunately necessaryfor viewing and so must be carefully monitoredand controlled to prevent damage. Measurementof the light source exposure levels on the object iscrucial in developing and maintaining protectivemeasures to combat photodegradation such as UVblocking windows and films, visible light reduc-tion filters, and scheduled viewing light programs.

Several available plantgrowth systems

As concern grows about the negative effects oflight exposure on photo-sensitive objects and sub-stances, so too does the demand for highly accu-rate and repeatable measurements. InternationalLight Technologies maintains a line of accurate andeconomical light measurement instrumentationdesigned for the most demanding Photostabilityapplications.

Light, for all of its positive effects,can wreak havoc in certain industries

Light grows food, provides warmth, allows sight,and keeps us safe in the dark. It provides moodand atmosphere, enhancing or even changingboth with simple changes in color or intensity.Light is truly one of the positive forces in the uni-verse, but like all positive forces, too much of agood thing can be bad. Direct human exposurehazards aside, over-exposure to light for certainmaterials and chemicals can cause disastrouschanges in their physical and chemical propertiesleading to product damage, reduced efficacy, haz-ardous interactions, or some combination of thethree. In certain applications, where use of photo-sensitive substances is heavy, continuous testingfor photostability, or how resistant a substance isto change from light exposure, is performed tomaintain product quality or safety.

Photostability testing helpsmaintainproduct quality and safety

Photostability testing is typically done under con-trolled conditions, often in a sealed chamber whereexact exposure levels to the spectra of light a productis likely to encounter, can be delivered for preciseanalysis of the effects. The light levels used in photo-stability testing are generally high enough to acceler-ate hours, days, weeks, months, or even years worthof light exposure down to seconds, minutes, or hoursin the testing chamber. Monitoring of the exposurelevels is critical and is either done by built-in meas-urement equipment within the chamber or by exter-nal instrumentation. This type of exact, accelerated,laboratory level photostability testing is typical forthe pharmaceutical, paint, ink, and dye manufactur-ing industries among others. Visible light and UVAare the prime spectra of concern due to the abun-dance of both types in sunlight and typical indoorlighting which are the most likely light sources to beencountered by these photo-sensitive products whenin use or in situ. Similar testing can also be used in thepreservation of delicate objects such as museum art-

Photostability Data Acquisition KitThe ILT1820 Photostability Data Acquisition Kit is a complete package specifically designed for the simultane-ous monitoring and data acquisition of both visible and UVA photostability light sources at sample rates up to1000 readings per second. With the USB interface and included software*, the ILT820 system can display lightmeasurements in real-time and export data for easy import into most standard analysis software such asMicrosoft Excel®.

THE ILT1820 PHOTOSTABILITY DATA ACQUISITION KITIncludes the following:

� ILT801 8-Channel Data Acquisition System for thesimultaneous monitoring of up to 8 sensors

� SED033/UVA/TD UVA Sensor (7-foot cable standard)

� SED033/Y/TD Visible Light Sensor (7-foot cable standard)

� NIST Traceable Sensor calibrations including certificates formeasurement inWatts/m2 and Lux.

� Operators manual

� A405 Plastic Carrying Case

* Requires a PC with Windows 2000, XP, or Vista

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Photostability DetectorsThe detectors in this section when used with our ILT1400 or ILT1700radiometers are specifically designed to meet FDA and ICH requirementsfor photostability testing which includes the measurement of both UVAlight in W/m2 and visible light in lux and are also able to integrate toconfirm the required exposure of 1.2 million lux hours and UVA energy ofnot less than 200 watt hours/square meter.

These individual detectors require either an ILT1400 (SEL type detectors)or ILT1700 (SED type detectors) instrument to make a complete meas-urement system. All detectors include one initial calibration. Additionalcalibrations may be purchased for other measurement units dependingon detector type.

UVA DETECTORUVA irradiance detector.Measurement Range with:� ILT1400 (SEL): 2.50e-4 to 8.75e+2 W/m2

� ILT1700 (SED): 5.00e-6 to 5.00e+3 Watts/m2

May also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 315 to 390 nm, Calibration at 360 nmSpectral Graph: (page 114-A1)Footprint: (33 mm x 42 mm dia)Order part numbers: SED033/UVA/TD (requires ILT1700) orSEL033/UVA/TD (requires ILT1400)Applications: Directly measures UVA irradiance in Watts/m2 and can beused for integrated exposure measurements in watt hours/m2

(Joules/m2). Standard cylindrical housing allows detector to be placed onflat surfaces, hand-held, or tripod/bench post mounted as well as easilybuilt into your own existing photostability test chamber, lamp housings,or test fixturing.

VISIBLE LIGHT SENSORPhotometric illuminance detector.Measurement Range with:� ILT1400 (SEL): 5.98e-2 to 2.09e+5 Lux� ILT1700 (SED): 1.20e-3 to 1.20e+6 LuxMay also be used with the ILT801 or OPM1 for long term process moni-toring. Contact a sales engineer for range selection.Spectral Range: 400 -700 nm (< 1% total area error to CIE)Spectral Graph: (page 113-C2)Footprint: (36 mm x 42 mm dia)Order part number: SED033/Y/TD (ILT1700) or SEL033/Y/TD (ILT1400)Applications: Designed for photometric illuminance measurements ofvisible light sources in Lux and can be used for integrated exposure

measurements in lux hours. Standard cylindrical housing allows detectorto be placed on flat surfaces, hand-held, or tripod/bench post mountedas well as easily built into your own existing photostability test chamber,lamp housings, or test fixturing.

Spectral Measurement SystemILT900 Spectroradiometer-based system for measurement and chromaticanalysis in Watts per nanometer or lumens per nanometer, Watts persquare centimeter per nanometer, micro-Einsteins per square centimeterper second, lux, color coordinates, dominant/complementary wave-length and purity, color rendering index, and coordinated color tempera-ture depending on system configuration. System includes initial calibra-tion. Additional calibrations may be purchased for other measurementunits depending on system configuration. All ILT900 systems require apersonal computer.


ILT900Spectroradiometer-based system for spectral analysis of most types ofradiometric and photometric light sources used in photostability appli-cations.Spectral Range: 220 – 950 nmMeasures: Watts/cm2/nm, Watts/nm, lumens/nm, lumens/m2/nm, can-dela (CIE127), micro-Einsteins, chromatic analysisApplications: The ILT900 is a complete, turnkey system enabling spec-tral, radiometric, photometric, and colorimetric analysis of a large arrayof light sources over a wide spectral range from the UV, through the visi-ble, and into the near-infrared.



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with these benefits come certain considerations,while ultraviolet light (UVA and UVB), infrared(IR), and even blue or red visible light have all beenshown to be effective at treating many conditions,they also pose certain health risks due to thepotential damage to the skin or eyes from overexposure, making it critical to monitor both thewavelength of light and the amount of exposuregiven to a patient.

Light measurement instrumentationto match any phototherapyapplication.

International Light Technologies has developed aline of reliable, highly accurate light measurementsystems capable of both research and develop-ment or clinical use and available to match thewide variety of light sources used in modern pho-totherapy treatments.

Even in ancient times, light was foundto be an effective medical treatment.

Light provides many benefits to man, not theleast of which are energy, heat, and food but it haslong been known to have many medicinal quali-ties as well. Phototherapy, which is treatment bythe application of either broad-spectrum or a spe-cific waveband of light, would seem like a moderntechnique but it actually has it roots in antiquity.The first deliberate use of light as a form of med-ical treatment can be traced back around 1400BCE to India where sufferers of vitiligo, a skin con-dition causing loss of pigmentation, were success-fully treated with exposure to sunlight after cer-tain plant extracts were administered which,unknowingly at the time contained skin photo-sensitizing compounds. These compounds, calledpsoralens, made their exposure to UVA moreeffective at re-pigmentation. They didn’t knowwhy it worked but they knew it worked. Over thecenturies since, scientific research has taken thesefirst simple beginnings and transformed theminto sophisticated forms of widely accepted treat-ments for numerous medical, psychological, andcosmetic conditions.

Phototherapy has many benefits butrequires careful control.

Phototherapy has given practitioners andpatients new options for the treatment of difficultchronic disorders and problematic conditions suchas dermatitis, psoriasis, common acne, eczema,and seasonal affective disorder as well as vitiligo,neonatal jaundice, delayed sleep-phase syn-drome, polymorphous light eruption, and mycosisfungoides among others. In many cases thesetreatments have been found to be as or moreeffective than traditional procedures while lessexpensive and typically faster. The demands of abusy world have given way to more powerful pho-totherapy treatments, particularly narrowbandUVB systems, capable of delivering the requiredexposure in the shortest amount of time, makingphototherapy an even more convenient treatmentoption. With decreased exposure times and fewerrequired visits, these treatments are more conven-ient than ever and can now fit around a patientsschedule or even done by the patient themselvesin their own home, office, or car due to advancesin smaller, safer, and easier to use portable andhome-use phototherapy light sources. However,


Complete Phototherapy SystemsPre-configured light meter kits for easy one button measurementof most phototherapy light sources. Detectors are not availableindividually. The Phototherapy Specialty Systems have thesecommon specifications:� NIST – traceable certification� 4½ - digit readout� Simple 1 – button operation� 9 – volt battery operated with 1 minute auto-shutoff

UVA RADIOMETER KITBased on the ILT70 light meter, this meter and detector combination sys-tem is preconfigured to quickly and easily measure UVA phototherapylight sources. See page 18 for more information on the ILT72.Measurement Range: 1 to 19.99 mW/cm2

Spectral Range: 315 – 390 nmSpectral Graph: (page 18)Footprint: (page 18)Order part number:ILT72 (complete system)Applications: Specifically con-figured for UVA1, UVA2, PUVA,and Broadband UVA photothera-py applications the ILT72 howev-er, is useable in almost any UVAmeasurement application.

BROADBAND UVB RADIOMETER KITBased on the ILT70 light meter, this meter and detector combinationsystem is preconfigured to quickly and easily measure broadband UVBphototherapy light sources.See page 19 for more information on the ILT73.Measurement Range: 1 to 19.99 mW/cm2

Spectral Range: 275 - 325 nm, calibration at 290 nmSpectral Graph: (page 19)Footprint: (page 19)Order part number: ILT73 (complete system)Applications: Visible blind meter with a calibration at 290 nm is config-ured to measure traditional broadband UVB phototherapy light sources.

NARROWBAND UVB RADIOMETER KITBased on the ILT70 light meter, this meter and detector combinationsystem is preconfigured to quickly and easily measure narrowband UVBphototherapy light sources.See page 19 for more infor-mation on the ILT73-NB.Measurement Range: 1 to19.99 mW/cm2

Spectral Range: 275 - 325nm, calibration at 311 nmSpectral Graph: (page 19)Footprint: (page 19)

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Order part number: ILT73-NB (complete system)Applications: Visible blind meter with a calibration at 311 nm isspecifically designed to measure newer narrowband TL-type UVB pho-totherapy light sources.

Phototherapy DetectorsThe following detectors require either an ILT1400 (SEL type detectors)or ILT1700 (SED type detectors) instrument to make a complete meas-urement system. All detectors include one initial calibration. Additionalcalibrations may be purchased for other measurement units dependingon detector type.

UVA DETECTORMulti-application UVA detector.Measurement Range with:� ILT1400 (SEL): 2.58e-8 to 8.75e-2 Watts/cm2


Spectral Range: 315 - 390 nm, Calibration at 360 nmSpectral Graph: (page 114-A1)Footprint: (32 mm x 42 mm)Order part number: SED033/UVA/W (requires ILT1700) orSEL033/UVA/TD (requires ILT1400)Applications: Detector offers highly accurate, UVA irradiance measure-ments with readout in watts/cm2as well as exposure in joules/cm2 for awide variety of UVA sources including phototherapy UVA1, UVA2, andPUVA sources. Standard cylindrical housing allows detector to be placedon flat surfaces, hand-held, or tripod/bench post mounted as well aseasily built into your own existing exposure booths, lamp housings, ortest fixturing.

PHOTOTHERAPY UVB DETECTORDual-use UVB detector can be used to measure both broadband andnarrowband UVB phototherapy sources.Measurement Range with:� ILT1400 (SEL): 1.11e-5 to 1.11e-1 Watts/cm2


Spectral Range: 265 - 332 nm, Calibration at 290 nm (peak response)for broadband applications (standard) or at 311 nm for narrowbandapplications (on request)Spectral Graph: (page 121-B2)Footprint: (64 mm x 42 mm dia)Order part number: SED240/UVB-1/W (requires ILT1700) orSEL240/UVB-1/TD (requires ILT1400)

Applications: This visible-blind phototherapy UVB detector can be cali-brated to measure broadband (290 nm calibration point) UVB for stan-dard UVB phototherapy systems or narrowband UVB (311 nm calibra-tion point) for newer TL-type UVB phototherapy systems. Standardcylindrical housing allows detector to be placed on flat surfaces, hand-held, or tripod/bench post mounted as well as easily built into yourown existing exposure booths, lamp housings, or test fixturing.Please note: The detector has peak response at 290 nm and willcome with calibration centered at 290 nm for broadband applica-tions unless calibration at 311 nm for narrowband applications isspecifically requested when ordering. Calibration centered at 311 nmcan be ordered in place of calibration centered at 290 nm or in addi-tion to calibration centered at 290 nm (additional calibration fee) foruse in both narrow and broadband applications.

UVB DETECTORMulti-application detector for improved UVB band discrimination.Measurement Range with:� ILT1400 (SEL): 1.54e-6 to 1.54e-2 Watts/cm2


Spectral Range: 275 - 310 nm, Calibration at 290 nmSpectral Graph: (page 121-C1)Footprint: (68 mm x 42 mm dia)Order part number: SED240/UVB/W (requires ILT1700) orSEL240/UVB/W (requires ILT1400)Applications: This visible-blind phototherapy UVB detector is fittedwith our specially designed UVB interference filter to distinctively sepa-rate UVA from UVB at 315 nm for applications that require discrimina-tion of the UVB band from UVC, UVA, or visible light. In phototherapyapplications, this detector is only useable for broadband UVB pho-totherapy systems (290 nm) since there is very little response at 311nm where the typical TL-type narrowband phototherapy systems aremost effective. Standard cylindrical housing allows detector to beplaced on flat surfaces, hand-held, or tripod/bench post mounted aswell as easily built into your own existing exposure booths, lamp hous-ings, or test fixturing.



Phototherapy Detectors (continued)

NARROWBAND UVB PHOTOTHERAPY DETECTORUVB detector specifically for use with TL-type narrowband UVB pho-totherapy light sources.Measurement Range with:� ILT1400 (SEL): 2.50e-6 to 8.75e+0 Watts/cm2


Spectral Range: 280 - 332 nm, Calibration at 312 nmSpectral Graph: (page 119-A1)Footprint: (32 mm x 42 mm dia)Order part number: SED005/TLS312/W (requires ILT1700) orSEL005/TLS312/TD (requires ILT1400)Applications: This detector is fitted with our specially designed narrow-band TLS312 filter for maximum response and a narrow bandwidth cen-tered at 312 nm for use with TL-type narrowband UVB phototherapylight sources. Not suitable for broadband UVB use (290 nm). Standardcylindrical housing allows detector to be placed on flat surfaces, hand-held, or tripod/bench post mounted as well as easily built into your ownexisting exposure booths, lamp housings, or test fixturing.

BILIRUBIN DETECTORBlue visible bilirubin response detector for measuring most types ofhyperbilirubinemia light sources.Measurement Range with:� ILT1400 (SEL): 5.88e-8 to 2.06e-1 Watts/cm2


Spectral Range: 410-485 nm, Calibration at 454 nmSpectral Graph: (page 114-A2)Footprint: (35 mm x 42 mm dia)Order part number: SED033/BR/W (requires ILT1700) or SEL033/BR/W(requires ILT1400)Applications: Specifically designed to measure lamp output in neonatalhyperbilirubinemia exposure chambers in watts/cm2, this detector is fit-ted with our proprietary bilirubin filter that exactly matches the photo-oxidation response of bilirubin in the blood of jaundice patients. Thestandard cylindrical housing allows this detector to be placed on flat sur-faces, hand-held, or tripod/bench post mounted as well as easily builtinto your own existing exposure booths, lamp housings, or test fixturing.

BILIRUBIN DETECTOR WAND

Blue visible bilirubin response hand-held wand detector for measuringmost types of hyperbilirubinemia light sources.Measurement Range with:� ILT1400 (SEL): 3.33e-7 to 1.17e+0 Watts/cm2


Spectral Range: 422-488 nm, Calibration at 454 nmSpectral Graph: (page 119-A2)Footprint: (page 122-D)Order part number: SCD144 (requires ILT1700) orSCL144 (requires ILT1400)Applications: Specifically designed to measure lamp output in neonatalhyperbilirubinemia exposure chambers in watts/cm2, this detector isfitted with our proprietary bilirubin filter that exactly matches thephoto-oxidation response of bilirubin in the blood of jaundice patients.Compact, ergonomic wand-shaped housing was specifically designed forhand-held use but may be accurately placed on flat surfaces as well.Please note: Optics are non-removable in wand detectors.

BLUE-VISIBLE BILIRUBIN DETECTORBlue-visible detector with a broader spectral response for measuringmost blue light sources including hyperbilirubinemia light sources.Measurement Range with:� ILT1400 (SEL): 1.43e-8 to 5.00e-2 Watts/cm2


Spectral Range: 370-515 nm, Calibration at 450 nmSpectral Graph: (page 113-A2)Footprint: (35 mm x 42 mm dia)Order part number: SED033/TBLU/W (requires ILT1700) orSEL033/TBLU/W (requires ILT1400)Applications: Multi-application detector for blue-visible applicationsincluding hyperbilirubinemia light sources with readout in watts/cm2.This detector has a broader spectral response than most of our otherbilirubin detectors for applications requiring more response in the visibleportion of the spectrum or some added response in the UVA. The stan-dard cylindrical housing allows this detector to be placed on flat sur-faces, hand-held, or tripod/bench post mounted as well as easily builtinto your own existing exposure booths, lamp housings, or test fixturing.


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BROADBAND BILIRUBIN DETECTOR WAND

Hand-held wand bilirubin detector has broader blue-visible response than our other bilirubindetectors on opposite page.Measurement Range with:� ILT1400 (SEL): 8.33e-10 to 2.92e-3 Watts/cm2/nm� ILT1700 (SED): 1.67e-11 to 1.67e-2 Watts/cm2/nmSpectral Range: 360-525 nm, Calibration at 450 nmSpectral Graph: (page 119-B1)Footprint: (page 122-D)Order part number: SCD145 (requires ILT1700) or SCL145 (requires ILT1400)Applications: Specifically designed to measure lamp output in neonatal hyperbilirubinemia exposure cham-bers with a band irradiance calibration in watts/cm2/nm. This detector has a broader response than our otherbilirubin detectors for those applications requiring more response in the UVA or visible portions of the spec-trum or for those bilirubin applications where readout in watts/cm2/nm is essential. Compact, ergonomicwand-shaped housing was specifically designed for hand-held use but may be accurately placed on flat sur-faces as well.Please note: Optics are non-removable in wand detectors.

Spectral Measurement SystemThe ILT900 Portable Wideband Spectroradiometer System can measure the spectral output of a wide range ofradiometric light including most hyperbilirubinemia light sources in Watts per nanometer or Watts per squarecentimeter per nanometer. The ILT900 includes an initial calibration and additional calibrations may be pur-chased for other measurement units depending on system configuration. The ILT900 does require a personalcomputer.


ILT900Spectroradiometer-based system for spectral analysis of most types of radiometric light sources.Spectral Range: 250 - 950 nmMeasures: Watts/cm2/nm, Watts/nm, lumens/nm, lumens/m2/nm, candela (CIE127), chromatic analysisApplications: The ILT900 is a complete, turnkey system enabling spectral, radiometric, photopic, and colori-metric analysis of a large array of light sources over a wide spectral range from the UV, through the visible, andinto the near-infrared.



Components

79

B A S E D E T E C T O R S

Components>

Base Detectors 79

Optical Filters 84

Input Optics 90

Accessories 94

ILT900 Accessories 97

Our nomenclature for identifying detector assemblies is shown below. For manyapplications the detector/filter/input optic configuration best suited for themeasurement is specified in the application section.

Example:A detector for making photopic measurements with an ILT1700 would be specified as"SED033/Y/W" and found in photometry measurement applications section on page xx.

SED specifies detector housing style and meter connection (xxL for ILT1400 series, xxD forILT1700 series)O33 specifies the type of sensor used. In the above example, the 33mm2 silicon photodiodeis indicated./Y specifies filter(s) used. In the example above, the Y refers to our photopic filter/W specifies the input optic used for illuminating the detector. In our example,theW indicates our wide-eye diffuser.The /U following the part numbers below indicates an UNCALIBRATED sensor. Detector kitssuch as SED033/Y/W include a calibration therefore the /U is not noted in the part number.The SED and SEL type detector housings are made of black anodized aluminum, withfemale filter threads (1¼-24), a tripod mount (¼-20), and two end mounts (#8-32). Onlythese housings allow for filter selection/swapping and only the SED and SEL type housingsallow for underwater modification. All underwater modified SED or SEL detectors requiretheW wide-eye diffuser in addition to any other filters. The SC### detectors are in a 112 x17 x 16 mm wand style housing, The XR### are in a 12.5 x 42 mm dia. housing, the SP###are in a 121 x 19 mm dia. pen style housing. These three versions do not have removable,swappable filters and cannot be made waterproof.



PART NUMBER/DESCRIPTION SPECTRAL SPECIFICATIONS SPECTRAL FOOTPRINTRANGE RESPONSE

SCD110/U, ILT1700 Illuminance Probe 400-700 nm 5.8 mm2 active area silicon detector with built in page 117-C1 page 122-DPhotopic CIE VIS response filter in wand style detector

housing. Dimensions: 112 x 17 x 16 mm.⌧SCL110/U, ILT1400 Illuminance ProbeSCD144/U, ILT1700 Bilirubin Phototherapy Probe 422-488 nm 5.8 mm2 active area silicon detector with built in page 119-A2 page 122-D

450 nm peak filter in wand style detector housing.Dimensions: 112 x 17 x 16 mm.⌧

SCL144/U, ILT1400 Bilirubin Phototherapy ProbeSCD145/U, ILT1700 Phototherapy Probe 360-525 nm 5.8 mm2 active area silicon detector with built in page 119-B1 page 122-D

450 nm peak filter in wand style detector housing.Dimensions: 112 x 17 x 16 mm.⌧

SCL145/U, ILT1400 Phototherapy ProbeSED005/U, ILT1700 UV-Visible GaAsP Detector 250-675 nm 5.2 mm2 detector with quartz window. page 106-A1 page 122-A

610 nm peak Dimensions: 20 x 42 mm dia. ⌧SEL005/U, ILT1400 UV-Visible GaAsP DetectorSUD005/U or SUL005/U, underwater versionSED007/U, ILT1700 IR InGaAs Detector 850-1700 nm 7 mm2 detector with spectral range from page 106-A2 page 122-A

1455 nm peak 850-1700nm. Dimensions: 20 x 42 mm dia. ⌧SEL007/U, ILT1400 IR InGaAs DetectorSUD007/U or SUL007/U, underwater versionSED008/U, ILT1700 Silicone Carbide Detector 200-400 nm 0.08 mm2 detector 20 x 42 mm dia.⌧ page 106-B1 page 122-A

270 nm peakSUD008/U, underwater versionSED033/U, ILT1700 Broadband Silicon Detector 200-1100 nm 33 mm2 silicon detector with quartz window. page 106-B2 page 122-A

950 nm peak Dimensions: 20 x 42 mm dia.⌧SEL033/U, ILT1400 Broadband Silicon DetectorSUD033/U or SUL033/U, underwater versionSPM068/U, ILT1700 Photomultiplier Detector 250-650 nm Ultra-sensitive photomultiplier tube with page 108-C2 page 122-F

integral power supply. Other spectral rangesavailable – Contact our knowledgeable salesstaff for more information.Dimensions: 162 mm x 42 mm dia.⌧

SPM068-1/U, ILT1700 Photomultiplier Detector 300-800 nmSED100/U, ILT1700 Broadband Silicon Detector 200-1100 nm 100 mm2 (1 cm2) silicon detector with quartz page 106-C1 page 122-A

950 nm peak window. Dimensions: 20 x 42 mm dia.⌧SEL100/U, ILT1400 Broadband Silicon DetectorSUD100/U or SUL100/U, underwater version

Key: ⌧= UNCALIBRATED


81


SED185/U, ILT1700 Gold Cathode Detector 160-240 nm 50 mm2 active area Gold Cathode Vacuum page 106-C2 page 122-B185 nm peak photodiode with quartz window (visible blocking).

Good stability in high ozone / UV environment.Dimensions: 53 x 42 mm dia.⌧

SEL185/U, ILT1400 Gold Cathode DetectorSUD185/U or SUL185/U, underwater versionSED220/U, ILT1700 Solar Blind Detector 160-320 nm 50 mm2 active area Vacuum photodiode page 107-A1 page 122-B

220 nm peak with fused silica window (visible blocking).Dimensions: 53 x 42 mm dia.⌧

SEL220/U, ILT1400 Solar Blind DetectorSUD220/U or SUL220/U, underwater versionSED240/U, ILT1700 Solar Blind Detector, 185-320 nm 50 mm2 active area Vacuum photodiode page 107-B1 page 122-B

240 nm peak with quartz window (visible blocking).Dimensions: 53 x 42 mm dia.⌧

SEL240/U, ILT1400 Solar Blind DetectorSUD240/U or SUL240/U, underwater versionSED320/U, ILT1700 UV Gallium Nitride Detector 200-320 nm 0.076 mm2 active area gallium nitride detector. page 107-C1 page 122-A

flat Provides uniform sensitivity from 200 to 320 nm.Dimensions: 20 x 42 mm dia.⌧

SEL320/U, ILT1400 UV, Gallium Nitride DetectorSUD320/U or SUL320/U, underwater versionSED324/U, ILT1700 Broadband Silicone Detector 320-1100 nm Large 324 mm2 active area silicone detector. page 108-A1 page 122-A

960 nm peak Dimensions: 20 x 42 mm dia. ⌧SEL324/U, ILT1400 Broadband Silicone DetectorSUD324/U or SUL324/U underwater versionSED365/U, ILT1700 UV Gallium Nitride Detector 200-365 nm 0.076 mm2 active area gallium nitride detector. page 108-A2 page 122-A

flat Provides uniform sensitivity from 200 to 365 nm.Dimensions: 20 x 42 mm dia.⌧

SEL365/U, ILT1400A UV Gallium Nitride DetectorSUD365/U or SUL365/U, underwater versionSED623/U, ILT1700 Thermopile Detector 200-4200 nm 4 mm2 thermopile detector with quartz window. page 108-B1 page 122-C

flat > 700 nm Dimensions: 60 x 42 mm dia.⌧SEL623/U, ILT1400 Thermopile DetectorSED624/U, ILT1700 Thermopile Detector 0.2-40 micron 4 mm2 thermopile detector with KBr window. page 108-B2 page 122-C

flat > 1.0 micron Dimensions: 60 x 42 mm dia.⌧SEL624/U, ILT1400 Thermopile DetectorSED625/U, ILT1700 Thermopile Detector 0.2-15 micron 4 mm2 thermopile detector with BaF2 window. page 108-C1 page 122-C

flat > 1.0 micron Dimensions: 60 x 42 mm dia.⌧SEL625/U, ILT1400 Thermopile Detector





SPD024F/U, ILT1700 Laser Power / Irradiance Probe 400-1064 nm 1.2 mm2 silicon detector in pen-like page 115-B1 page 122-Eflat housing has a 5.5 mm aperture opening

with built in filter and integrating sphere.Dimensions: 121 mm x 19 mm dia.⌧

SPL024F/U, ILT1400 Laser Power / Irradiance ProbeSPD024Y/U, ILT1700 Photopic Pen Probe 400-700 nm 1.2 mm2 silicon detector in pen-like page 115-B2 page 122-E

Photopic housing has a 5.5 mm aperture openingwith built in filter and integrating sphere.Dimensions: 121 mm x 19 mm dia.⌧

SPL024Y/U, ILT1400 Photopic Pen ProbeSPD025F/U, ILT1700 Radiance Pen Probe 400-1064 nm 1.2 mm2 silicon detector in pen-like page 122-E

flat housing with radiance optics and built infilter. Dimensions: 121 mm x 19 mm dia. ⌧

SPL025F/U, ILT1400 Radiance Pen ProbeSPD025Y/U, ILT1700 Contact Luminance Pen Probe 400-700 nm 1.2 mm2 silicon detector in pen-like page 117-C2 page 122-E

Photopic housing with luminance optics and built infilter. Dimensions: 121 mm x 19 mm dia.⌧

SPL025Y/U, ILT1400 Contact Luminance Pen ProbeSSD001A/U, ILT1700 Super Slim UV Probe 260-400 nm 0.64 mm2 silicon detector with built in page 116-C1 page 122-E

370 nm peak UV filter. Super slim. Dimensions:29 x 38 mm, only 2 mm thick.⌧

SSL001A/U, ILT1400 Super Slim UV ProbeXRD050/U, ILT1700 Spot Cure Probe 320-400 nm 33 mm2 silicon detector with 0.5 mm page 116-C2 page 123-B

365 nm peak limiting aperture in 12.5 mm X 42 mmdia. housing.⌧

XRL050/U, ILT1400 Spot Cure ProbeXRD140A/U, ILT1700 Photoresist Cell 320-475 nm 33 mm2 silicon detector with built in page 117-A1 page 123-B

410 nm peak filter in 12.5 mm X 42 mm dia. housing.⌧XRL140A/U, ILT1400 Photoresist CellXRD140B/U, ILT1700 Photoresist Cell 326-401 nm 33 mm2 silicon detector with built in page 117-B1 page 123-B

365 nm peak filter in 12.5 mm X 42 mm dia. housing.⌧XRL140B/U, ILT1400 Photoresist CellXRD340A/U, ILT1700 Attenuated Photoresist Probe 320-475 nm 33 mm2 silicon detector with built in page 117-A2 page 123-B

410 nm peak filter in 12.5 mm X 42 mm dia. housing.⌧XRL340A/U, ILT1400 Attenuated Photoresist ProbeXRD340B/U, ILT1700 Attenuated Photoresist Probe 326-401 nm 33 mm2 silicon detector with built in page 117-B2 page 123-B

365 nm peak filter in 12.5 mm X 42 mm dia. housing.⌧XRL340B/U, ILT1400 Attenuated Photoresist Probe



83


XRD140T254/U, ILT1700 Germicidal Probe 360-370 nm, 33 mm2 silicon detector with built in page 115-A1 page 123-B365 nm peak narrow band filter in 12.5 mm X 42 mm

dia. housing.⌧XRL140T254/U, ILT1400 Germicidal ProbeXRD140T365Q2/U, ILT1700 NB 365 nm Probe 360-370 nm 33 mm2 silicon detector with built in page 123-B

365 nm peak narrow band and 100x attenuation filtersin 12.5 mm X 42 mm dia. housing.⌧

XRL140T365Q2/U, ILT1400 NB 365 nm ProbeXRD140/U, ILT1700 Varies by 33 mm2 silicon cell in 13 x 42 mm dia. page 123-BUnfiltered low profile sensor for custom applications filter selection housing can be combined with IL filters

and diffusers to make custom low profilesensors. ie. NS405 filter with teflon diffusercan be mounted in XRL housing to create alow profile sensor to measure 400-410 nm.(should not be used with mostWBS filtersdo to secondary response in the IR) Filters andoptics are epoxied in place and cannot beremoved. Custom orders are non refundable.Please contact a sales engineer for a price quote,or assistance with filter selection.⌧

XRL140/U, ILT1400 Varies by 33 mm2 silicon cell in 13 x 42 mm dia. page 123-BUnfiltered low profile sensor for custom applications filter selection housing can be combined with IL filters

and diffusers to make custom low profile sensors.ie. NS405 filter with teflon diffuser can be mountedin XRL housing to create a low profile sensor tomeasure 400-410 nm. (should not be usedwith mostWBS filters do to secondary responsein the IR) Filters and optics are epoxied in placeand cannot be removed. Custom orders arenon refundable. Please contact a sales engineerfor a price quote, or assistance with filter selection.⌧


O P T I C A L F I L T E R S


Optical filters are often used to attenuate certain wavelengths of light and pro-duce an overall desired detector response. Interference filters rely on harmonicinterference between waves to provide very narrow passbands. Thin metalfilms are spaced half the desired wavelength apart by a dielectric spacer.Interference filters are capable of bandwidths less than 10 nm. Absorptive fil-ters typically consist of glass that has been doped with a concentration of dyethat absorbs particular colors. Since spectral transmission varies logarithmical-ly with thickness, the band pass can be reduced by thickening the filter.Bouger's law describes the effect of thickness on transmission: log10(t0) /d0=log10(t1) /d, where t is the internal transmittance, and the thickness, for twofilters made from the same material. Internal transmittance is greater thanexternal transmittance due to reflection losses. Fresnel's law of reflectionstates that the fraction of light reflected for normal incidence is: r = (n-1)2 /(n+1)2, where n is the ratio of the refractive indexes of the two media. If n =1.5 for air and glass, then r = 4% for each surface. Two filters separated by airtransmit 8% less than two connected by optical cement (or even water).Multiple color filters can be layered to match a desired function, such as the CIEphotopic response, which defines the eye's sensitivity to color. The combinedspectral response is the product of the filter's transmission and the spectral

responsivity of the detector doped with a concentration of dye that absorbsparticular colors. Since spectral transmission varies logarithmically with thick-ness, the band pass can be reduced by thickening the filter. Bouger's lawdescribes the effect of thickness on transmission: log10(t0) /d0 = log10(t1) /d,where t is the internal transmittance, and the thickness, for two filters madefrom the same material. Internal transmittance is greater than external trans-mittance due to reflection losses. Fresnel's law of reflection states that the frac-tion of light reflected for normal incidence is: r = (n-1)2 / (n+1)2, where n isthe ratio of the refractive indexes of the two media. If n = 1.5 for air and glass,then r = 4% for each surface. Two filters separated by air transmit 8% less thantwo connected by optical cement (or even water). Multiple color filters can belayered to match a desired function, such as the CIE photopic response, whichdefines the eye's sensitivity to color. The combined spectral response is theproduct of the filter's transmission and the spectral responsivity of the detector.International Light Technologies optical filters are the building blocks thatallow a myriad of applications. Mounted in threaded (1 1/4-24 thread) blackanodized rings, all filters may be repeatedly interchanged on any SED, SEL, andSPM detector. Unmounted filters and empty filter rings are also available.


85

PART NUMBER/DESCRIPTION SPECIFICATIONS

A, Photoresist Filter 25 mm dia. tailored filter designed to provide 'A' response(320-475 nm) with silicon sensors. Deep Ring*

ACT5, Actinic/Germicidal Filter 20 mm dia. multipurpose filter produces expanded UV actinic response or effectivegermicidal/bactericidal response when used with our SED(SEL)240 Detector. Deep Ring*

T2ACT5, Actinic Germicidal Filter / Diffuser ACT5 combined with T2X Diffuser. Provides extra sensitivity with good spatial responserequired for use with IL1400 for optical hazard measurements. TX2 Ring*

B, Photoresist Filter 25 mm dia. tailored filter designed to provide 'B' response (326-401 nm)with silicon detectors. Deep Ring*

BR, Bilirubin Phototherapy Filter 12.5 mm dia. tailored filter to be combined with silicon detectors forhyperbilirubinemia phototherapy. Deep Ring*

F, Flat Response Filter 12.5 mm dia. tailored filter to be combined with silicon detectors to produce aflat spectral response. Shallow Ring*

FQ, Attenuated Flat Response Filter Attenuated F filter to be combined with silicon detectors to produce a flatspectral response. Shallow Ring*

HMR, Hot Mirror IR rejecting hot mirror. Combined with F filter for flat VIS response. Shallow Ring*HPS515, Photopic Filter 25 mm dia. filter corrects Photomultiplier to C.I.E. eye response. Deep Ring*NS185, Narrow Band Filter, UV 25 mm dia. mounted interference filter with center wavelength 185 nm. Shallow Ring*NS###, UV Narrow Band filters, Ultraviolet 25 mm dia. mounted interference filter with center wavelength at ### nanometers,

FWHM 10 nm. Standard filters available are NS254, NS280, NS297, NS313, NS335,NS350, NS365. Ring varies.

NS###, Visible Narrow Band Filter, Visible 25 mm dia. mounted interference filters with center wavelength at ### nanometers,FWHM 10 nm. Standard filters available are NS400, NS405, NS436, NS500, NS546,NS600, NS633 and NS700. Ring varies.

NS###, custom 25 mm dia. mounted interference filter with center wavelength at ### nanometers,for ranges not noted above. CUSTOM NSUV, NSVIS and NSIR, with many FWHM andCW ranges available, contact technical support for assistance. Ring varies.

NDFSS102, Neutral Density Filter Set UV-IR: 25 mm dia. filters mounted to fit SED(SEL)(SPM) detectors. QNDS1, QNDS2and QNDS3 included.

PAR, Photosynthetically Active Radiation 25 mm dia. tailored filter to be combined with silicon detectors. Combined quantum rresponse is spectrally flat in the visible range. Deep Ring*

QNDS1, Neutral Density Filter 25 mm dia. mounted quartz filters with 10 times attenuation. Shallow Ring*QNDS2, Neutral Density Filter 25 mm dia. mounted quartz filters with 100 times attenuation. Shallow Ring*QNDS3, Neutral Density Filter 25 mm dia. mounted quartz filters with 1000 times attenuation. Shallow Ring*SCS###, Sharp Cut Filters 25 mm dia. mounted glass filters with a wavelength of ### at 60% transmission. They

pass wavelengths above ### and absorb wavelengths below ###. Standard filtersavailable are SCS245,SCS280, SCS320,SCS340, SCS365 (LIMITED AVAILABILITY),SCS395, SCS425, SCS440, SCS465, SCS490, SCS520, SCS530, SCS545,SCS590, SCS605,SCS622, SCS695, SCS740, SCS780, SCS810, SCS830, SCS860. Ring varies.

*Shallow Ring: (5 mm x 42 mm dia)Deep Ring: (8 mm x 42 mm dia)T2X Ring: (4.6 mm x 42 mm dia)




SPS300, Super Solar Blind UV Filter 25 mm dia. tailored filter when combined with the SED(SEL)240 Detector produces UVresponse from 280 to 315 nm with a billion-to-one VIS/IR rejection. Deep Ring*

TBLU, Blue Color And Hazard Filter 12.5 mm dia. filter mounted for use with silicon detectors. Deep Ring*TFRD, Far Red Color Filter 25 mm dia. filter mounted for use with silicon detectors. Deep Ring*TGRN, Green Color Filter 25 mm dia. filter mounted for use with silicon detectors. Deep Ring*TRED, Red Color Filter 25 mm dia. filter mounted for use with silicon detectors. Deep Ring*TYLW, Yellow Color Filter 25 mm dia. filter mounted for use with silicon detectors. Deep Ring*TLS312, Narrowband UVB Phototherapy Filter 25 mm dia. narrow band filter for use with GaAsP detector,

for TL-01 lamp measurement. Shallow Ring*UVA, Phototherapy Filter 12.5 mm dia. tailored filter when combined with silicon detector produces UVA response

from 315 to 390 nm (10%). Shallow Ring*UVB, Filter 20 mm dia. tailored filter when combined with solar blind vacuum photodiode

produces response from 275 to 310 nm. For applications other than Phototherapyrequiring better out of band rejection. Deep Ring*

UVB-1, Phototherapy Filter 20 mm dia. tailored filter when combined with solar blind vacuum photodiodeproduces response from 265 to 332 nm. Deep Ring*

WBS###,Wide Band Filters, UV-IR Mounted glass filters with center wavelength at ### nanometers.(note, manyWBS filters cannot be used with silicon sensors due to secondary responsein the IR, so they are typically sold with the SED(SEL)005. Standard filters available areWBS320,WBS350,WBS365,WBS375, WBS400,WBS405,WBS410, WBS440,WBS460,WBS465,WBS480,WBS520,WBS825. Ring varies.

Y, Photopic Filter 12.5 mm dia. tailored filter when used with silicon detectors produces a match to theCIE Photopic Response. Deep Ring*

YPM, Photopic Filter for SPM068-1 12.5 mm dia. tailored filter when used with SPM068-1 PMT detector produces a matchto the CIE Photopic Response. Deep Ring*

YK11.3, Photopic LED filter combination Photopic filter and input optic designed for CIE 127 condition A and condition BLED measurements.

ZCIE, Scotopic Filter 12.5 mm dia. filter used with silicon detectors to produce a match to theCIE Scotopic Response. Shallow Ring*

ZPM, Scotopic Filter for SPM068-1 12.5 mm dia. filter used with SPM068-1 PMT detector to produce a match to theCIE Scotopic Response. Shallow Ring*

*Shallow Ring: (5 mm x 42 mm dia)Deep Ring: (8 mm x 42 mm dia)T2X Ring: (4.6 mm x 42 mm dia)


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70.00

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90.00

100.00

350 375 400 425 450 475 500 525 550 575 600 625 650 675 700

NS

43

6

NS

54

6

NS

60

0

NS

63

3

NS

70

0

NS

40

5

NS

40

0

NS

50

0

Wavelength (nm)

%tra

nsm

issi

on

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

230 240 260 280 300 320 340 360250 270 290 310 330 350

Wavelength (nm)

%tra

nsm

issi

on

NS254 NS297 NS313 NS335

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

200 300 400 500 600 700 800 900 1000 1100

F Filter

%Tr

ansm

issi

on

Wavelength (nm)

FQ(F filter with10x attenuationcoating)

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

165 167 169 172 176 179 181 183 185 187 190 194 198 202 205 210 215 222 225 228 233 238 240

%Tr

ansm

issi

on NS185

Broadband Color Filters Flat Response Filters

Actinic Hazard Filter Narrowband UV Filters

Visible Narrowband (NS) Filters Narrowband 185nm Filter



0.000

0.500

1.000

1.500

2.000

2.500

3.000

3.500

4.000

4.500

5.000

200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000

Opt

ical

Den

sity

Wavelength (nm)

QNDS1 (10x attenuator)



0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500

%Tr

ansm

issi

on

Wavelength (nm)

A-R

esp

on

se

B-R

esp

on

se

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

200 220 240 260 280 300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600Wavelength (nm)

%Tr

ansm

issi

on

SC

S3

95

SC

S2

80

SC

S2

45

SC

S3

20

SC

S3

40

SC

S3

65

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

600 650 700 750 800 850 900 950 1000

SC

S8

10

SC

S7

40

SC

S7

80

SC

S8

60

SC

S8

30

Wavelength (nm)

%tra

nsm

issi

on

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

250 260 270 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500

UVB-1

UVA BR

TLS312

UVB-1 withSED(SEL)240 solar-blindvacuum photodiode

%Tr

ansm

issi

on

Wavelength (nm)

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

300 325 350 375 400 425 450 475 500 525 550 575 600 625 650 675 700 725 750 775 800

SC

S5

45

SC

S5

90

SC

S6

05

SC

S6

22

SC

S6

95

SC

S4

65

SC

S4

25

SC

S4

40

SC

S4

90

SC

S5

20

Wavelength (nm)

%Tr

ansm

issi

on

Photoresist Filters Phototherapy Filters

Neutral Density (QNDS) Filters NIR Sharp-Cut (SCS) Filters

UV Sharp-Cut (SCS) Filters Visible Sharp-Cut (SCS) Filters


89

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000

%Tr

ansm

issi

on

Wavelength (nm)

WB

S4

65

WB

S4

65

WB

S4

10

WB

S4

40

WB

S4

60

WB

S4

05

WB

S4

40

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350

SPS300 withSED(SEL)240

Vacuum Photodiode

%Tr

ansm

issi

on

Wavelength (nm)

UVB

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000

%Tr

ansm

issi

on

Wavelength (nm)

WB

S3

20

WB

S3

20

WB

S3

50

WB

S3

50

WB

S3

65

WB

S3

65

WB

S4

00

WB

S4

00

WB

S3

75

WB

S3

75

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000

%Tr

ansm

issi

on

Wavelength (nm)

WB

S4

80

WB

S5

20

WB

S4

80

WB

S8

25

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

100.00

350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1050 1100

Y(Photopic)

ZCIE(Scotopic)

%Tr

ansm

issi

on

Wavelength (nm)

PAR/HMR

UVB Filters Visible Filters

Wide-Band (WBS) Filters 405 - 465 nm Wide-Band (WBS) Filters 480 - 825 nm

Wide-Band (WBS) Filters 320 - 400 nm

I N P U T O P T I C S


Light measurement units are defined around very specific spatial responses. Acarefully designed input optics system is essential if measurement accuracy isto be achieved. Two laws of geometrical optics apply directly to radiometry andphotometry: the inverse square law and the cosine law. The inverse square lawdefines the relationship between irradiance from a point source and the dis-tance to the measurement surface. It states that the intensity per unit areavaries in inverse proportion to the square of the distance between the sourceand surface. In other words, if youmeasure 16W/cm2 at 1meter, youwill meas-ure 4W/cm2 at 2 meters, and can calculate the irradiance at any other distance.A well defined measurement plane and approximate point source are requiredfor valid interpolations.

In radiance measurements (W/cm2/sr), where a detector with a narrow viewingangle looks at amuch larger, uniform area source, the area of the source that thedetector sees increases as the detector moves farther away, counteracting theeffects of the inverse square law and making the reading independent of dis-

tance. Radiance measurements are useful for characterizing large area sourcessuch as CRT's and backlit displays, or for diffuse, uniformly illuminated surfaces.

The cosine law refers to the relationship between the irradiance on a surfaceand the incident angle. The intensity falls off in proportion to the cosine of thereflected angle, since the effective surface area is reduced as the angle increas-es. Irradiance and Illuminance detectors, especially those with filters thatrestrict off-angle light, require cosine correction to properly quantify light com-ing from all angles. Inaccurate cosine response is one of the biggest sources oferror in full immersion applications.

There are many applications in light measurement that require specializedinput optics. For example, intense laser beams must be diffused, so that thenarrow beam does not locally saturate the receiver. Many high intensity ultra-violet sources require temperature resistant remote optics that offer cosine spa-tial responses and side viewing.


91

PART NUMBER/DESCRIPTION SPECIFICATIONS FOOTPRINT

A310 Filter Mounting Ring Mounts filters 25 mm dia., up to 7 mm thick, has 1 ¼"-24 threads page 123-CA311 Filter Mounting Ring Mounts filters 25 mm dia., up to 4 mm thick, has 1 ¼"-24 threads page 123-CA312 Opal Diffuser Opal Diffuser, Mounted in A310 Ring page 123-DA313 Flat Quartz Diffuser Flat Quartz Diffuser, Mounted in A311 Ring page 123-DAT Attenuator cap, X10 Provides X10 attenuation. No threads, slides onto end of detectorFFOSMA2UV1000 Light Guide, UV Quartz Light Guide, UV Quartz Solid Core 2 meter long -1000umFFO1857-1.5 Light Guide, UV Quartz 2 mm diameter bundled fiber optic to transmit UV radiation ,

1.5 meter long-56x200/220/245 LSHOH is water proof and withstandshi temperature ( up to 200 deg C)

FFO2501 Light Guide, UV Quartz 2 mm diameter bundled fiber optic to transmit UV radiation ,.5 meter Long bundled 56x200/220/245 LSHOH is water proof andwithstands hi temperature ( up to 200 deg C) Replaced FFO2500

FFO2755P1XA Fiber Optic Light Guide 22 fiber bundle LSOH, .5 meter long water proof Fiber Optic with PVCmonocoil jacket and SMA connectors

H Hood 62.5 mm long x 42 mm dia. barrel, internally baffled to reduce stray page 124-Alight and field of view. Accepts standard input optics and filters.

HNK15 Laser Adapter H Hood, N diffuser and K15 Cone assembly for laser power measurements. page 125-A15 mm diameter input aperture with uniform response.

INS150 Integrating Sphere, 6" 150 mm diameter sphere designed to measure total flux (power) from page 124-Bsingle LEDs and small lamps, as well as beam candela according to theprocedures in CIE127.� Spectral range: 225 to 1400 nm� High optical efficiency� Optimized for fiber coupling – SMA-905 connector� Easy tripod mounting or system integration with simple ¼-20 thread bracket� Precision 1 cm2 area input aperture facilitates measurement of flux, irradiance,

or beam candela per CIE procedure 127� Included magnetic blanchard allows quick connection of the various available

LED and lamp test fixtures


INS250 Integrating Sphere, 10" 250 mm diameter sphere in cubical housing includes two port page 124-Cplugs, and YIN Calibrated miniature lamp.� Spectral range: 225 to 1400 nm� Internally baffled to eliminate direct detector exposure and

first-bounce measurements.� 3 orthogonal ports� 2 port plugs and one A250 port plug/lamp adapter equipped

with two feed-thru pins to allow power to the light source tobe measured while blocking leakage from the outside.

� Sphere may be used on any of 3 sides.� Calibrated transfer standard lamp with output in millicandela.� 110 - 235 VAC (50 – 60 Hz) universal main power supply.

K9 Cone 9 mm aperture and targeting aid. page 124-DK15 Cone 15 mm aperture and targeting aid. page 124-DL30 High Gain Lens Increases detector sensitivity by a factor of 30 while page 125-B

limiting acceptance angle for visible and near IR applications.For effective intensity of flash sources at a distance greaterthan 25 feet. +/-0.8 degree FOV. .

LED Barrel LED Adapter with baffles, painted flat internally and page 125-Cassembled for luminous/radiant intensity measurementof LEDs, 4.3 mm dia. aperture.

N Diffuser Quartz diffuser with reflective coatingP11 mm dia. aperture 1 mm I.D. aperture with 1 ¼"-24, used for limiting input area. page 127-BP2 Adapter, 4.3 mm I.D.sleeve 4.3 mm I.D., Adapts fiber optic cables to female 1 ¼"-24 threads page 125-D

on SED(SEL)(SPM) DetectorsP6 Adapter, 12.5 mm 12.5 mm I.D.CR149 adaptor with female 1 ¼" -24 threads. page 126-AP6/SMA Adapter, SMA905 P6 Adapter with SMA905 coupling. page 126-BP6SMAW INS250 Fiber Optic Port Adapter Connects fiber optics with SMA905 couplings to the INS250

integrating sphere port. Painted with white reflectance coatingP8 Adapter, 8.30 mm I.D. 8.30 mm I.D., Adapts RAMP to female 1 ¼"-24 threads on page 126-A

SED(SEL)(SPM) Detectors.




93


P9 Adapter, 9.2 mm I.D. 9.2 mm I.D. Adapts PIN to female 1 ¼"-24 threads on page 126-ASED(SEL)(SPM) Detectors.

PIN Probe Single quartz fiber housed in 1.5 mm diameter x 152 mm long page 126-Cstainless steel tube for remote end-on viewing.Custom lengths available. Requires P9 adapter.

R Barrel For use with SED(SEL)(SPM) detectors to produce an average field of page 126-Dview of +/- 0.75 degree (1.5 degree total) for radiance/luminancemeasurement of extended sources.

RAA Right Angle Adapter Input adapter for fiber optic probes includes aWWide Eye diffuserfor cosine response. Dimensions: 32 mm dia. x 25 mm high.

RAMP12Microprobe / 12 Inches 5 x 5 mm square chrome plated tube encasing a UV transmitting page 127-Aquartz fiber light guide with right angle acceptor. Requires P8 Adapter.

RAMP18Microprobe / 18 Inches 5 x 5 mm square chrome plated tube encasing a UV transmitting page 127-Aquartz fiber light guide with right angle acceptor. Requires P8 Adapter.

T Diffuser Used in addition to theW for improved cosine response, especiallywith thin film filters. For spectral ranges 250 - 700 nm.

T1MM Diffuser / Aperture 1 mm Teflon diffuser mounted in filter ring with 1 mm diameter page 127-Baperture for contact irradiance

T2X Diffuser Combines any UV-Vis filter with T Teflon Diffuser in one ringfor extra sensitivity and excellent spatial response.

TD Diffuser Domed teflon diffuser for use with IL detectors for page 127-Cspectral ranges 250 - 700 nm.

W Diffuser Internal hemisphere of solid quartz for use with IL detectors page 127-Dfor cosine response from 200 - 2100 nm.

W2 Diffuser Same asW diffuser with Silica chips to improve cosine responsewhen used with fiber optics (MPS2354 housing with SMA connectorsold separately)

A C C E S S O R I E S



A26 Sunglasses Prevents eye damage by blocking UV and IR radiation.A204 Small Tripod Adjustable tripod for use with ILT900-C and SED(SEL) sensors with a ¼-20 UNC

tripod mount.A205 Bench Post Adjustable metal post with base for use on or off optical benches.A250 Port Adapter Test light source fixture for use with the INS250 Integrating Sphere. The A250 Port

Adapter allows a light source to be measured in the integrating sphere and easily bewired to an external power source without measurement interference.

A251 INS250 Lamp Adapter Adapter for INS250 to allow the use of the MagPro mountingboards A2706, A2707, and A2708

A2706 LED Mount for INS150 Prototype Multi holed holder for customized source mounting.Includes MagPro Magnetic mounting system.

A2707 LED Mount for INS150 Leaded LED holder for 3 and 5mm packaged single andbi-color LEDs. Includes MagPro Magnetic mounting system.

A2708 LED Mount for INS150 SMT holder for 1206 and PLC sources. Includes MagProMagnetic mounting system.

A2709MP-PRP Intensity Aperture Connects to the LED barrel to allow use with the MagPromagnetic mounting system. Especially useful on the end of theLED barrel for quick mounting of LEDs for testing beam candela.


95


A405 Carrying Case for ILT1700 & ILT801 Plastic carrying case for the ILTT1700, ILT801 and/or detectors and accessories.A406 Adapter Cable Adapts older SEE type detectors for use with the ILT1700.A407 Extension Cable 10-foot long extension cable for SED, XRD, SPM or SCD type detectors.A411 Adapter Cable Adapts SEL, XRL, or SCL type detectors for use with the ILT1700.A412 DB25 RS232 Cable, Male to Female 10-foot long DB25 RS232C Cable, male to female for use with the ILT1700.A413 DB25 RS232 Cable, Male to Male 10-foot long DB25 RS232C Cable, male to male for use with the ILT1700.A417 ILT1700 AC operated battery option Includes internal battery charger, with 6 installed and charged rechargeable

Ni-Cad batteries.A425 Oscilloscope adapter, DB15 to wire leads Connects SED, XRD, or SCD type detectors to an oscilloscope for fast flash measurements

up to the response time of the detector. Please note: The A425 is for use withsolid-state two-wire detectors only such as the SED033, SED005, or SED007 detectors.SED185, 220, and 240 phototube detectors and SED623, 624, and 625 thermopiledetectors require additional power supply connections not provided by theA425 adapter.

A430 Detector Amplifier 0-5 V low impedance output to provide an interface between low level detector currentsand low impedance voltage receiving equipment such as Programmable LogicControllers (PLCs). Connector for SEL type detectors only. All other detector types willrequire an adapter such as the A508 or hard wiring. Please note: The A430 DetectorAmplifier is intended for use with solid-state SEL033, SEL005, and SEL007 two-wiredetectors only. SEL185, 220, and 240 phototube detectors and SEL623, 624, and 625thermopile detectors require additional power supply connections not provided by theA430 amplifier.

A440 DB9 RS232C Cable 10-foot long DB9 RS232C Cable, male to female for use with the ILT1700.A507 Extension Cable 10-foot long extension cable for SEL, XRL, and SCL type detectorsA508 Adapter Cable Adapts an ILT1700 SED type detector for use with the ILT1400AA510 RS232 DB25 / Detector Cable Split-cable connects between the ILT1400A and an SEL, XRL, or SCL type detector and

sends readings to a computer via an RS232 DB25 connector.A511 RS232 DB9 / Detector Cable Split-cable connects between the ILT1400A and an SEL, XRL, or SCL type detector and

sends readings to a computer via an RS232 DB9 connector.A516 ILT1400 A/C power cord Optional A/C power cable for 120 V operation.




A525 Oscilloscope adapter, 20 pin card edge Connects SEL, XRL, or SCL type detectors to an oscilloscope for fast flash measurementsup to the response time of the detector. Please note: The A525 is for use with solid-state two-wire detectors only such as the SEL033, SEL005, or SEL007 detectors.SEL185, 220, and 240 phototube detectors and SEL623, 624, and 625 thermopiledetectors require additional power supply connections not provided by theA525 adapter.

CC390 Carrying Case, ILT290 - ILT393 Plastic carrying case for use with the ILT390C, ILT290A, ILT393.CC400 Carrying Case, ILT70 + Belt Plastic carrying case for use with the ILT400, ILT490 and ILT70 Series.CC500 ILT1400A Carrying Case Plastic carrying case for use with the ILT1400A instruments.ILT705 LED Driver The ILT705 Precision LED Drive with ProtectProTM technology is the ideal current

controlled power supply when setting up to test and/or measure LEDs. You can run all ofyour LEDs, from low-power through-hole devices to the latest high power 1 watt surface-mounts. The ProtectProTM circuitry prevents startup current surges from damagingyour LED, allowing your LED to be connected when the supply is turned on or even hot-swapped under load. This important feature is not found on most LED power suppliescosting many thousands of dollars more.

The simple front panel Set Point knob and easy to read 4 ½ digit digital display lets youquickly set the desired operating current. A font panel continuity indicator will warn youif your LED circuit is not complete. This feature is particularly useful when working withIR LEDs, when the LED is inside an integrating sphere, or when the LED is otherwisenot visible.

Electrical Specifications� Output: 0-400mA DC up to 24 VDC compliance� Auxiliary output: 24 VDC at up to 500 mA, fused� Current Accuracy: 0.5% of reading down to 5 mA� Display: 4 ½ digit red LED digital display� Dimensions: 6.49 x 6.32 x 2.03 inches (220 x 165 x 51.56 mm)� Input: 85 to 264 VAC, 47 to 63 Hz

PUB### MANUALS ILT - 1400, 1700, 400, 490, 72, Most manuals are available at intl-lighttech.com.73, 74, 77 and ILT-900, 380 Manuals (i.e. PUB1700 isan ILT1700 manual)SUD(SUL)### Underwater Detector Modification Underwater version of SED(SEL)### Detectors. Includes 100 feet of cable with waterproof

housing. Detector is pressure tested for use up to a 100 foot depth. Please note:Detector To be modified, detector must be fitted with a “W” Quartz Wide Eye Diffuser.

I L T 9 0 0 S P E C T R O R A D I O M E T E R A C C E S S O R I E S

97

The following accessories are specifically for the ILT900 Spectroradiometer.

ORDER NUMBER/PRODUCT DESCRIPTION

ILT900-W NEMA4 housing IP68 rated waterproof + dustproof housing. For a new waterproof ILT900 system andNEMAUPGRD for retro-fit to existing ILT900-R systems.

FFO259700XA Standard fiber bundle 19 fiber bundle, 2 meter length,SMA-905 connector. Requires ILT900-R or ILT900-W.W2 Quartz cosign receptor Quartz diffuser with fritted diffuser for excellent spatial respone (MPS2354 housing

w/SMA-905 connector sold separately.

W2 High temperature quartz cosign receptor Ring with high-temp epoxy mounted fritted quartz diffuser for operation in0 – 120 degrees C temperatures (requires ILT900-R or ILT900-W).

RAA2 Right angle adapter Right angle receptor with fritted quartz diffuser in an anodized aluminumhousing permits measurement of sources 90 degrees to the fiber normal(requires ILT900-R or ILT900-W).

R2 Radiance/luminance optic Quartz lens attachment with 2 degrees FOV permits radiance or luminancemeasurements (requires ILT900-R or ILT900-W).

A706 Spot finder For use with the R2 radiance/luminance optic. Allows precision optical alignment andvisualization of the measurement spot of the R2 radiance/luminance optic.Battery operated. Includes SMA-905 connector.

CC900 ILT900 carrying case Large, hard case for use with fiber bundle equipped ILT900 models(ILT900-R or ILT900-W).

CC500 ILT900-C carrying case Small, hard case for the ILT900-C.CBLCC58C-6F Trigger cable BNC male-to-male, 50 ohm, 6-foot long, external trigger cable.

For use with all ILT900 models.

I L T 9 0 0 S P E C T R O R A D I O M E T E R A C C E S S O R I E S


ORDER NUMBER/PRODUCT DESCRIPTION FOOTPRINT

CBLCSUZAB-2M USB cable 2 meter long, A to B type, USB 2.0 interface cable. For use withall ILT900 models.

MHWWS2282XA Tripod, small Compact, Ultrapod II. For use with all ILT900 models.INS150 6-inch integrating sphere Includes a 1 cm2 precision aperture for accurate CIE127 page 124 B

conditions A and B averaged LED intensity measurementsas well as total flux by simply adjusting the position ofthe LED. Easy tripod mounting or system integration withsimple ¼-20 thread bracket. Included magnetic blanchard allowsquick connection of the various available LED and lamp test fixtures(requires ILT900-R or ILT900-W).

W5Mini Water Proof ILT900 Diffuser 20mm long x 14 mm dia fritted diffuser in a water tight housingwith SMA connector quartz water tight diffuser for excellentspatial response when use with the ILT900.(available with 5 - 8 mm dia active area).

OCAL/N/VS9 Calibration (240 - 950 nm) One initial calibration is included with all ILT900 models thatallows measurement in irradiance and illuminance. Additionalcalibrations are required for additional optics or specialcircumstance measurements.

RPS-HP Notebook Computer Notebook computer for use with ILT900 and ILT380 spectroradiometers.Comes complete with all software installed. Call for specifications.

Services


C A L I B R A T I O N S E R V I C E S

Calibration Services

All precision light measurement instruments andtheir detectors, such as our ILT1400A and ILT1700light meters, require periodic recalibration toensure proper operation. That is why InternationalLight Technologies has expanded our NISTtraceable calibration lab, invested in newequipment, and are planning to extend ourstandard calibration service offering.

Calibration Lab

As our customer base has grown over the past 40+years, and as our customers have adopted qualitymanufacturing standards such as ISO9001, wehave seen a dramatic increase in the demand forannual NIST traceable recalibration. In response tothis increase in demand for calibration services wehave expanded our calibration lab, invested in newequipment, and are planning to extend ourstandard calibration service offering.

Annual Recalibration

All instrumentation requires periodic recalibrationto ensure proper operation. In addition, extremeoperating conditions (UV, heat, and dirt) candegrade optical performance potentiallyrequiring an increase in recalibration frequency.Annual recalibration provides a relativelyinexpensive guarantee of accuracy. Accuratereadings translate into more efficient productionprocesses, more reliable research and safermedical procedures. Annual recalibration istypically a requirement of ISO9001 certification.

NIST Traceable

International Light Technologies obtains fullycharacterized Primary Standard Detectors directlyfrom the National Institute of Standards andTechnology (NIST) in Gaithersburg, Maryland.Through the transfer of standards technique, wecompare the output of a customer's detector to astandard under tightly controlled laboratoryconditions.

Standard Calibration Services

The following list describes the basic types of opticalcalibrations that we perform in our metrology lab. Allinstrumentation requires periodic recalibration toensure proper operation. The PIR and YIS calibrations(see the complete list on the following pages) are ourmost commonly requested calibrations forradiometers and photometers, respectively. Ourflexible laboratory setup allows us to perform a widerange of different calibrations at a reasonable cost.

Services>

Calibration 100

Repair Troubleshooting 104

Repair RMAs 104

101

C A L I B R A T I O N S


ECAL/1400 IL1400 Radiometer Electrical Electrical accuracy and linearitycheck, and recalibration to NISTstandards. Includes I/O check.

ECAL/1700 IL1700 Radiometer Electrical Electrical accuracy and linearitycheck, and recalibration to NISTstandards. Includes I/O check.

ECAL/METER IL Obsolete Radiometer Electrical Electrical accuracy and linearitycheck, and recalibration to NISTstandards. Includes I/O check.

BIR(IBIR) Band Irradiance Response Band Irradiance response,(amps)(cm2)(nm)(watt-1), ofan ILT bilirubin detector

CSAR Custom Scanned Absolute Response Same as a SAR for other thanan ILT sensor assembly orelectro-optical system. Standardwavelength coverage is 250-1000 nm.

CSIM Custom Spectral Irradiance Spectral irradiance responseof light source.

CSPR Custom Single Point Calibration Optical Calibration of non-ILT lightmeasuring instrumentation. Itemsmust be sent in full working condi-tion. Single point optical calibrationsare performed at the peak or centerwavelength of the sensor combina-tion in empirical units such asW, W/cm2, Cd, lumens, Lux, etc. Norepairs or adjustments are made onthe unit. A calibration certificate witha reading correction factor is provided.Copy of a sample certificate isavailable upon request. Pleasecontact an ILT representative forapproval and an RMA prior toshipping any items to ILT.

CSTM Custom Spectral Transmission Plot of percent transmissionvs. wavelength (nm) for any filter.

IEO System Calibration Calibration of ILT70-basedRadiometer Systems. Includes 9Vbattery replacement, electrical testand optical recalibration for directreadout in the appropriateoptical units.




IEC ILT400 & ILT490 Belt Radiometer Calibrations Electrical test and optical recalibration for direct readout in appropriate optical units forILT400 and ILT490 Belt Radiometers

IER Belt Radiometer Calibration Calibration of ILT290,ILT390, and ILT393 systems. Includes battery replacement, UV filter,electrical test and optical recalibration for readout in mJ/cm2.

PINR(IPINR) Peak Intensity Response Intensity response, (amps)(sr)(watt-1), at peak sensitivity of IL detector.PIR(IPIR) Peak Irradiance Response Irradiance response, (amps)(cm2)(watt-1), at peak sensitivity of an IL detector.PIRE(IPIRE)MicroEinsteins/sec/cm2 Same as PIR but for readout in microEinsteins/sec/cm2.PPR(IPPR) Peak Power Response Power response, (amps)(watt-1), at peak sensitivity of an IL detector.PRR(IPRR) Peak Radiance Response Radiance response, (amps)(cm2)(sr)(watt-1), at peak sensitivity of an ILT detector.SAPScanned Absolute Power Response Scan with tabulated data of absolute power response, (amps)(watt-1) vs. nm, of an

ILT detector. (250-1000 nm)SAR Scanned Absolute Response Scan with tabulated data of absolute irradiance response, (amps)(cm2)(watt-1) vs.nm,

of an ILT detector. (250-1000 nm)SARE Scanned Response, Einstein Scan with tabulated data of absolute irradiance response,microEinsteins/sec/cm2 vs. nm,

of an ILT detector. (250-1000 nm)SAXT Extended Scanned Calibration Service to expand calibration below 250 nm (down to 200 nm) or above 1000 nm(out to

1100 nm with NIST traceability, or out to 1600 nm without traceability). Purchase ofstandard scan from 250-1000 nm required.

SRAD Scanned Absolute Radiance Response Scan with tabulated data of absolute radiance response, (amps)(cm2)(sr)(watt-1) vs.nm,of an ILT detector. (250-1000 nm)

SIR Spectral Irradiance Response Scan with tabulated data, (amps)(cm2)(nm)(watt-1) vs.nm, of all obsolete versionsILT spectroradiometers. (250-1000 nm)

SOL(ISOL) Solar UVB Response Irradiance response as compared to simulated solar UVB spectral irradiance integratedbelow 315 nm, for an ILT UVB detector.

SRR Scanned Relative Response Scan with relative response data (% vs. nm), of an IL detector. (250-1000 nm)SUV Extended UV Scanned Calibration Scanned UV calibration every 2 nm from 200-400 nm.VS1, VS2 Scanned Absolute Radiance Response ILT380 and ILT200 Spectroradiometer calibration includes certification and CD with

calibration data.VS9 Spectroradiometer Calibration ILT900 spectroradiometer calibration from 250-950 nm. Includes certification and CD

with calibration data.WIRAWide Irradiance Response Wide Irradiance Response (amps)(m2)(watt-1) as compared to an extended area UVA

source, spectrum integrated from 315-400 nm.WIRXWide Irradiance Response Wide Irradiance Response (amps)(m2)(watt-1) as compared to Xenon ID65 or Xenon

Glass window source (Select one), spectrum integrated from 315-400 nm.XIR(IXIR) Custom PIR at specified wavelength Irradiance response, (amps)(cm2)(watt-1), at specified wavelength X, within the band

width of an ILT detector.XPR(IXPR) Custom PPR at specified wavelength Radiance response, (amps)(watt-1), at specified wavelength X, within the bandwidth of

an ILT detector.


103


XRR(IXRR) Custom PRR at specified wavelength Radiance response, (amps)(cm2)(sr)(watt-1), at specified wavelength X, within theband width of an ILT detector.

YFS(IYFS) Photopic Flux Sensitivity Total photopic flux response, (amps)(lumen-1), of an ILT photopic detector.YIN Standard INS250 Lamp Intensity Mean spherical candle power output of INS250 integrating sphere lamp.EYINS(IEYINS) Effective Photopic Intensity Sensitivity Effective photopic intensity response, (amp)(eff. candela-1), of an ILT photopic detector

for flash measurements.YINS(IYINS) Photopic Intensity Sensitivity Photopic intensity response, (amp)(candela-1), of an IL photopic detector.YIS(IYIS) Photometric (Y) Illuminance Sensitivity Illuminance sensitivity, (amps)(ft2)(lm-1) or (amps)(m2)(lm-1), of an

ILT photopic detector.YCL(IYCL) Photometric (Y) Contact Luminance Sensitivity Luminance sensitivity, (amps)(fL-1) or (amps)(m2)(cd-1), of an IL photopic detector.YCOLPhotometric Color Correction Modified photometric calibration at customer specified color temperature, intensity

or wavelength.YLS(IYLS) Photometric (Y) Luminance Sensitivity Luminance sensitivity, (amps)(fL-1) or (amps)(m2)(cd-1), of an ILT photopic detector.YSAR Scanned Absolute Illuminance Response Scan with tabulated data of absolute illuminance response, (amps)(ft2)(lm-1) vs. nm

or (amps)(m2)(lm-1) vs. nm, of an IL photopic or scotopic detector.ZIS(IZIS) Scotopic Illuminance Sensitivity Illuminance sensitivity, (amps)(ft2)(lm-1) or (amps)(m2)(lm-1), of an

ILT scotopic detector.ZLS(IZLS) Scotopic Luminance Sensitivity Luminance sensitivity, (amps)(fL-1) or (amps)(m2)(cd-1), of an IL scotopic detector.Express Service 3 Day Priority Calibration 3-day priority service for a maximum of 2 systems (maximum 2 calibrations per

system). Additional items will be an extra $25.00 US each. No guarantee is implied.No express charge will be incurred if IL is unable to complete service on time(excludes repairs and scanned calibrations).

Repairs RPR/PARTS and RPS/LABOR All repairs are billed at $175 per hour plus parts. Repairs no longer available forobsolete equipment.

** All orders are subject to a $55 min evaluation fee.

Cancelled/changed orders will be billed for any completed calibration at the time of cancellation/change,and a minimum evaluation fee of $55 if no calibrations have been performed.Please note: As of the 1st of January 2008, all calibrations are performed under the followingenvironmental tolerances: 21° C ± 4° and 0 to 95% relative humidity.

R E P A I R S E R V I C E S - R E T U R N M A T E R I A L A U T H O R I Z A T I O N S


Prior to shipping any equipment back to International Light Technologies forservice including routine recalibration, a Return Material Authorization must beobtained by contacting our Customer Service department via phone, fax, ore-mail. Goods received with no paperwork are assessed a $25.00 US handlingfee. Please be sure to include a packing list on the OUTSIDE of all shipments.

*Please review our "Troubleshooting guide" prior tocontacting customer service for repair return.

Any equipment received for service without an RMA in our system will beheld in quarantine pending confirmation and service will likely be delayed.When requesting an RMA, please provide the following information:� Model number and serial number information of all equipmentbeing returned. This includes any meters, detectors, or any elements attachedto the detectors such as optical filters, diffusers, or input optics. ILT meters nor-mally have a model/serial number label attached to the back or the rear panel.ILT detectors have an ILT model/serial number lable attached to the side of thedetector head. Attached elements such as filters, diffusers, and input optics arenormally screwed into the face of the detector and have model number andserial number information etched on the side.� Bill to: and ship to: address information including point of contact, phoneand fax numbers, special delivery identifiers (room number, building number,door, etc.).

� Please specify the service requested, calibration or repair. Please docu-ment to the best of your ability any malfunctions or damage when sendingequipment to IL for repair.� Please document any special calibration requirements (specific wave-lengths, distances, etc.)� Please specify return shipment method, including carrier and level ofservice. Shipment cost is prepaid and added to the invoice unless otherwisespecified. If collect shipment is required, please provide the shipping accountnumber for the carrier of choice.

ILT requires the purchase order number or credit card information at the time theRMA is requested. We cannot issue an RMA number without this information.It is important that this procedure be followed and all information be providedwhen obtaining an RMA number in order to ensure prompt, accurate service ofyour equipment.

CONTACTING CUSTOMER SERVICE:By Phone 978-818-6180Fax: 978-818-6181 ATTN: CUSTOMER SERVICEBy E-Mail: [email protected]

R E P A I R S E R V I C E S - T R O U B L E S H O O T I N G

Repair ServicesTroubleshooting your Light Measuring System:

Before sending your Light Measuring System in for possible repairs, you maywant to utilize the simple checklist below to determine if returning your instru-ments for service is necessary.1. Check your Calibration Certificate to make sure that the sensitivity factor beingused is correct for the detector/filter/input optic model & serial number combi-nation that you are attempting to use. All components (model & serial numbers)listed on the calibration certificate must be used during measurement for accu-rate readings. PLEASE NOTE: Filters/input optics should not be swapped withoutchanging the calibration factor.2. Confirm the AA batteries in the ILT1400 are still fresh & in the proper position.Only rechargeable NICAD batteries should be used in your ILT1700 (standard Cbatteries may leak & cause extensive damage to your meter); confirm that theyare fully charged per instructions in your manual. If using a power source, dou-ble-check to make sure it is functioning properly.

3. Confirm that a proper zero was done for the ILT1400 & ILT1700 detectors.a. DARK: cover sensor/detector with opaque object, wait 10 seconds,press zero, wait 5 seconds until meter finishes.b. AMBIENT: no cover on sensor/detector, light to be measuredshould be off, press zero, wait 5 seconds until meter finishes, turn onsource to be measured.

4. Confirm that your meter/detector system has been calibrated within (at least)the past 12 months as Calibration Certificates are only valid for up to 12 months.NOTE: meters measuring high levels of UV may require re-calibration more fre-quently.You will want to check your previous re-calibration to see how much thesystem changed during your last calibration cycle. If the unit was “out of toler-ance”by a significant amount, you may want to use a shorter calibration cycle.5. If your ILT1700 is “locking up” (displays freeze), try the “ReinitializationProcedure” in your operators manual.6. If your belt radiometer shows a black display after emerging from conveyoroven & then shows measurements a few minutes afterward, the unit may havebeen overheated. Although these readings should be fine, the meter should be“cooled down”between sessions. Eventually the overheating will cause the unitto degrade faster than normal.

Technical Specifications


T Y P I C A L S P E C T R A L R E S P O N S E G R A P H S

choice.

SED(SEL)005

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 250 300 350 400 450 500 550 600 650 700 750 800Wavelength (nm)

SED(SEL)033

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 300 400 500 600 700 800 900 1000 1100 1200Wavelength (nm)

SED(SEL)185

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

175 180 185 190 195 200 205 210 215 220 225 230 235 240 245 250

Wavelength (nm)

SED(SEL)007

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

680 780 880 980 1080 1180 1280 1380 1480 1580 1680Wavelength (nm)

SED(SEL)100

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 300 400 500 600 700 800 900 1000 1100Wavelength (nm)

A

B

1 2

C

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

230 250 270 290 310 330 350 370 390 410 430

Wavelength (nm)

SED(SEL)008

Base Detectors (no Filters) The following graphs illustrate the basic spectral response curve of each of our base-model light detectors withoutthe addition of any band-modifying filters such as our photopic, flat-irradiance, sharp-cut, or wide-band interferencefilters. These response curves remain the same regardless of radiometer choice

Technical Specifications>

Spectral Response Graphs 106

Technical Illustrations 122

107


Base Detectors (no Filters) cont.

choice.

SED(SEL)624

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

0 5000 10000 15000 20000 25000 30000 35000 40000

Wavelength (nm)

S

A

1

SED(SEL)625

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

0 2000 4000 6000 8000 10000 12000 14000 16000

Wavelength (nm)

A

B

Wavelength (nm)

SPM068-1

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

250 300 350 400 450 500 550 600 650

A

the same r

1

2



Base Detectors (no Filters) cont.

choice.

SED(SEL)320

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

230 250 270 290 310 330 350 370 390Wavelength (nm)

SED(SEL)623

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 400 500 600 700 800 900 1000

Wavelength (nm)

SED(SEL)220

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 220 240 260 280 300 320 340 360 380

Wavelength (nm)

SED(SEL)324

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000

Wavelength (nm)

SED(SEL)365

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

230 250 270 290 310 330 350 370 400Wavelength (nm)

A

B

1 2

C

SED(SEL)240

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

195 215 235 255 275 295 315 335 355 375

Wavelength (nm)

S

109


SED(SEL)033 Detectors The following graphs illustrate the spectral response curves of our SED(SEL)033 silicon photodiode based lightdetector in various application-specific configurations. These response curves remain the same regardless ofradiometer choice.

A

B

1 2

C

SED(SEL)033/F/INS250 page 30

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 300 400 500 600 700 800 900 1000 1100

Wavelength (nm)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

350 400 450 500 550 600 650 700 750 800

Wavelength (nm)

SED(SEL)033/Y/LED page 31

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

350 400 450 500 550 600 650 700 750 800

Wavelength (nm)

SED(SEL)033/Y/P9/PIN page 31 & 48

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

350 400 450 500 550 600 650 700 750Wavelength (nm)

SED(SEL)033/Y/INS250 page 30

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

350 400 450 500 550 600 650 700 750Wavelength (nm)

SED(SEL)033/Y/R page 31 & 48

SED(SEL)033/F/LED page 31

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000Wavelength (nm)



SED(SEL)033 Detectors cont.

A

B

1 2

C

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

350 400 450 500 550 600 650 700 750 800 850 900 950 1000Wavelength (nm)

SED(SEL)033/F/HMR/W page 34

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 300 400 500 600 700 800 900 1000Wavelength (nm)

SED(SEL)033/F/W page 34

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 320 340 360 380 400 420 440Wavelength (nm)

SED(SEL)033/B/QNDS2/W page 40

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 320 340 360 380 400 420 440Wavelength (nm)

SED(SEL)033/B/RAMP page 40

SED(SEL)033/F/R page 32 & 36

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000Wavelength (nm)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600Wavelength (nm)

SED(SEL)033/TBLU/T1MM page 41

111



A

B

1 2

C

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

300 320 340 360 380 400 420 440 460 480 500

Wavelength (nm)

SED(SEL)033/A/W page 43

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 320 340 360 380 400 420 440Wavelength (nm)

SED(SEL)033/B/W page 44

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

350 400 450 500 550 600 650 700 750 800

Wavelength (nm)

SED(SEL)033/Y/L30 page 49

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

350 400 450 500 550 600 650 700 750Wavelength (nm)

SED(SEL)033/Y/H page 49

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700Wavelength (nm)

SED(SEL)033/Y/W page 47

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

350 375 400 425 450 475 500 525 550 575 600 625 650 675 700Wavelength (nm)

SED(SEL)033/ZCIE/W page 50




A

B

1 2

C

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 400 500 600 700 800 900 1000 1100 1200Wavelength (nm)

SED(SEL)033/F/HNK15page 58

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

250 350 450 550 650 750 850 950 1050 1150

Wavelength (nm)

SED(SEL)033/F/QNDS3/HNK15 page 59

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 325 350 375 400 425 450 475 500 525 550 575 600Wavelength (nm)

SED(SEL)033/TBLU/SCS395/W page 62

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

200 300 400 500 600 700 800 900 1000

Wavelength (nm)

SED(SEL)033/QNDS2/W page 54

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 325 350 375 400 425 450 475 500 525 550 575 600 625 650 675 700Wavelength (nm)

SED(SEL)033/ZCIE/R page 50

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 325 350 375 400 425 450 475 500 525 550 575 600Wavelength (nm)

SED(SEL)033/TBLU/SCS395/R page 62

113



A

B

1 2

C

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

250 350 450 560 660 760Wavelength (nm)

SED(SEL)033/PAR/QNDS1/W page 65

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 320 340 360 380 400 420 440 460 480 500 520 540 560 580 600Wavelength (nm)

SED(SEL)033/TBLU/W page 65 & 76

SED(SEL)033/F/P1 page 68

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 300 400 500 600 700 800 900 1000 1100

Wavelength (nm)

SED(SEL)033/TRED/W page 66 & 69

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

580 590 600 610 620 630 640 650 660 670 680 690 700 710 720 730 740 750 760

Wavelength (nm)

SED(SEL)033/TFRD/W page 66 & 69

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

700 710 720 730 740 750 760 770 780 790 800 810 820 830 840 850 860

Wavelength (nm)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

400 420 440 460 480 500 520 540 560 580 600 620 640 660 680 700Wavelength (nm)

SED(SEL)033/Y/TD page 72




A

1 2

C

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

310 315 320 325 330 335 340 345 350 355 360 365 370 375 380 385 390 395 400Wavelength (nm)

SED(SEL)033/UVA/W page 75 SED(SEL)033/BR/W page 76

Wavelength (nm)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

250 300 350 400 450 500 550 600 650

115


A

B

1 2

C

SPD(SPL)024F page 30 & 58

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 350 400 450 500 550 600 650 700 750 800 850 900 950 10001050

Wavelength (nm)

SPD(SPL)024Y page 30

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

400 425 450 475 500 525 550 575 600 625 650 675 700 725 750 775 800 825

Wavelength (nm)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 220 240 260 280 300 320 340 360 380 400 420 440Wavelength (nm)

SED(SEL)005/WBS320/TD page 35 & 40 & 62

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

800 900 1000 1100 1200 1300 1400 1500 1600 1700

Wavelength (nm)

SED(SEL)007/W page 35 & 63

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

230 250 270 290 310 330 350 370 390 410 430

Wavelength (nm)

SED(SEL)008/W page 26XRD(XRL)140T254 page 25

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

220 230 240 250 260 270 280 290 300Wavelength (nm)

Solid-State Detectors The following graphs illustrate the spectral response curves of our solid-state photocell light detector in variousapplication-specific configurations. These response curves remain the same regardless of radiometer choice.



A

B

1 2

C

SSD(SSL)001A page 40 & 45

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

250 270 290 310 330 350 370 390 410 430 450 470 490

Wavelength (nm)

SSD(SSL)001A

SSD(SSL)001Athrough glass

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

305 310 315 320 325 330 335 340 345 350 355

Wavelength (nm)

SED(SEL)005/NS335/W page 40

SED(SEL)623/K9 page 35

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 400 500 600 700 800 900 1000

Wavelength (nm)


0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

0 5000 10000 15000 20000 25000 30000 35000 40000

Wavelength (nm)


0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

120.00%

0 2000 4000 6000 8000 10000 12000 14000 16000

Wavelength (nm)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 310 320 330 340 350 360 370 380 390 400 410 420 430 440

Wavelength (nm)

XRD(XRL)050 page 41

Solid-State Detectors cont.

117


A

B

1 2

C

SCD(SCL)110 page 47 & 54

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

400 425 450 475 500 525 550 575 600 625 650 675 700 725 750

Wavelength (nm)

SPD(SPL)025Y page 48

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

375 400 425 450 475 500 525 550 575 600 625 650 675 700 725 750

Wavelength (nm)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

250 270 290 310 330 350 370 390 410 430 450 470 490 510 530 550 570 590

Wavelength (nm)

XRD(XRL)340A page 44

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450

Wavelength (nm)

XRD(XRL)340B page 45

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450

Wavelength (nm)

XRD(XRL)140B page 44

XRD(XRL)140A page 44

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 320 340 360 380 400 420 440 460 480 500 520

Wavelength (nm)




A

B

1 2

C

SED(SEL)100/FQ/K15 page 58

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 300 400 500 600 700 800 900 1000Wavelength (nm)

SED(SEL)623/SCS695/W page 63

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

600 650 700 750 800 850 900 950 1000 1050

Wavelength (nm)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 250 300 350 400 450 500 550 600 650 700 750

Wavelength (nm)

SED(SEL)005/HNK15 page 58

SED(SEL)623/QNDS1/W page 55

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

300 400 500 600 700 800 900 1000

Wavelength (nm)


0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 300 400 500 600 700 800 900 1000Wavelength (nm)

SED(SEL)005/UVA/W page 53

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

300 310 320 330 340 350 360 370 380 390 400 410 420Wavelength (nm)


119


A

B

1 2

C

SCD(SCL)144 page 76

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

380 390 400 410 420 430 440 450 460 470 480 490 500 510 520

Wavelength (nm)

SCD(SCL)145 page 77

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 250 300 350 400 450 500 550 600

Wavelength (nm)

Normally cutoff by glass envelope lampsFlourescence error will occur in lampswith emissions in the 250 - 320 nm rangewithout a glass envelope

SED(SEL)005/TLS312/W page 76

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

250 260 270 280 290 300 310 320 330 340 350

Wavelength (nm)




A

B

1 2

C

SED(SEL)185/NS185 page 26

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

175 180 185 190 195 200 205 210 215 220 225 230 235 240 245 250

Wavelength (nm)

SED(SEL)220/NS185 page 27

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

170 180 190 200 210 220 230 240 250 260

Wavelength (nm)

SED(SEL)240/INS250 page 29

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

200 220 240 260 280 300 320 340 360 380 400

Wavelength (nm)

SED(SEL)240/NS254/W page 25

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

220 225 230 235 240 245 250 255 260 265 270 275 280 285 290

Wavelength (nm)

SED(SEL)240/QNDS2/TD page 26

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350

Wavelength (nm)

SED(SEL)240/W page 26

0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

190 210 230 250 270 290 310 330 350 370 390

Wavelength (nm)

Vacuum Photodiodes The following graphs illustrate the spectral response curves of our vacuum photodiode based UV detectors in var-ious application-specific configurations. These response curves remain the same regardless of radiometer choice.

121


A

B

1 2

C

SED(SEL)240/SPS300/T/W page 53

0.00%

10.00%

20.00%

30.00%

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50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350

Wavelength (nm)

SED(SEL)240/ACT5/W page 61

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30.00%

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50.00%

60.00%

70.00%

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100.00%

200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350

Wavelength (nm)

SED(SEL)240/UVB-1/W page 75

0.00%

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20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

250 260 270 280 290 300 310 320 330 340 350Wavelength (nm)

SED(SEL)240/UVB/W page 75

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

250 260 270 280 290 300 310 320 330 340 350

Wavelength (nm)


0.00%

20.00%

40.00%

60.00%

80.00%

100.00%

190 210 230 250 270 290 310 330 350 370 390

Wavelength (nm)

Vacuum Photodiodes cont.


T E C H N I C A L I L L U S T R A T I O N S

A B

C D

E F

123


A B

C D



A B

C D

125


A B

C D



A B

C D

127


A B

C D


I N D E X

Index (alphabetical)

About International Light, 3Applications, 22-77

Germicidal UV Measurement, 24-27Germicidal Measurement Application Description, 24Complete Low-Pressure Mercury System (ILT77), 25Effective Germicidal Detectors, 25-26Germicidal Spectral Measurement (ILT900), 27Low Pressure Mercury Detectors, 26Ozone/Germicidal Detectors, 26-27

Laser Measurement, 56-59Broad-Range Thermopile Laser Power Detectors, 59Laser Measurement Application Description, 56UV Laser Power Detectors, 57-58Visible/Near-Infrared Laser Power Detectors, 58-59

LED Measurement, 28-32LED Measurement Application Description, 28Luminous/Radiant Beam Intensity Detectors, 31-32Power/Spherical Intensity Detectors, 29-30Spectrum/Color Measurement Systems (ILT900LED), 32

Optical Radiation Hazard Measurement, 60-63Optical Radiation Hazard Measurement Application Description, 60Spectral Cataract Surgery Hazard Measurement System (ILT900), 63UV Laser Power Detectors, 61-63

Photodynamic Therapy Measurement, 67-69Photodynamic Therapy Measurement Application Description, 67Visible/Near-Infrared PDT Detectors, 68-69

Photometry Measurement, 46-51Illuminance Monitor Kit (OMP1-Y), 47Low-Light Illuminance/Luminance Detectors, 51Luminous Intensity/Flash Photometry Detectors, 48-49Photometry Measurement Application Description, 46Photopic Illuminance Detectors, 47Photopic Luminance Detectors, 48Scotopic Illuminance Detectors, 50Scotopic Luminance Detectors, 50

Photoresist Measurement, 42-45Photoresist Measurement Application Description, 42Photoresist Specific Detectors (A & B type photoresists), 43-45

Photostability Measurement, 70-72Photostability Data Acquisition Kit (ILT1820), 71Photostability Detectors, 72Photostability Measurement Application Description, 70Spectral Measurement System (ILT900), 72

129

I N D E X

Index (alphabetical) cont.

Phototherapy Measurement, 73-77Complete Phototherapy Systems (ILT72, ILT73, ILT73-NB), 74-75Phototherapy Detectors, 75-77Phototherapy Measurement Application Description, 73Spectral Measurement System (ILT900), 77

Plant Photobiology Measurement, 64-66Individual Plant Growth Band Detectors, 65-66PAR Detectors, 65Plant Photobiology Measurement Application Description, 64Spectral Measurement System (ILT900), 66

Radiometry Measurement, 33-37Irradiance Detectors, 34-36Irradiance Monitor Kit (OPM1F), 34Low-Level Irradiance Detectors, 37Low-Level Radiance Detectors, 37Radiance Detectors, 36-37Radiometry Measurement Application Description, 33Spectral Measurement System (ILT900), 37

Solar Measurement, 52-55Solar Measurement Application Description, 52Solar UV Detectors, 53Spectral Measurement System (ILT900), 55UV/Vis/IR Detectors, 54-55Visible Solar Detectors, 54

Understanding an application specific detector listing, 23UV Curing Measurement, 38-41

Belt Radiometers (ILT400 & ILT490), 39Irradiance Detectors, 40-41Spectral Measurement System (ILT900), 41UV Curing Measurement Application Description, 38

Components, 78-98Accessories, 94-96Base Detectors, 79-83

Base Detector Nomenclature, 79Base Detector Descriptions, 80-83

ILT900 Spectroradiometer Accessories, 97-98Input Optics, 90-93

Input Optic Technical Notes, 90Optical Filter Descriptions, 91-93

Optical Filters, 84-89Optical Filter Technical Notes, 84Optical Filter Descriptions, 85-86Optical Filter Transmission Graphs, 87-89


I N D E X

Index (alphabetical) cont.

Instruments, 4-21ILT1400, 12ZILT1700, 9-10ILT400, 15ILT490, 16ILT70 Series, 17-21

ILT70 OEM Radiometer, 17ILT72 UVA Radiometer, 18ILT73 UVB Radiometers, 19ILT74 Bili-Light Radiometer, 20ILT77 Germicidal Radiometer, 17

ILT801, 11ILT900, 5-8OPM1-F, 13OPM1-Y, 14

Services, 99-104Calibration Services, 100-103

Calibration Service Notes, 100Calibration Listings, 101-103

Repair Services – Return Material Authorizations, 104Repair Services – Troubleshooting, 104

Technical Specifications, 105-127Technical Illustrations, 122-127Typical Spectral Response Graphs, 106-121

Base Detectors (no filters or optics), 106-108SED(SEL)033 Based Detectors, 109-114Solid-State Based Detectors, 115-119Vacuum Photodiode Based Detectors, 120-121

Documents

ILT Light Systems Measurement Product Catalog