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Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
MicroprismMicroprism™™
IntroducingIntroducing
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
What is Microprism?What is Microprism?
Definitions:Definitions:
(Pitch)0.4mm
Magnified image of Magnified image of DKI DKI Microprism™Microprism™
Microprism/lenses– Microprism/lenses are small lenses,
generally with less than a millimetre (mm) in diameter.
Pitch– The distance between same point on
repeating patterns
TIR– Total Internal Reflection, The critical
angle is the angle of incidence above which the total internal reflection occurs.
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
DKIDKI Microprism™ Microprism™
Radius on prismatic structures ≤ 2Micron. (Current competing capabilities is limited to radius ≥ 30-40 Micron.) Small pitch possible due to sharp edges, which produce less chromatic aberrations (Separation of the light relative to wavelength. E.g. Red, green and blue colour exit prism in diverging angle) Film based, Formable to fit customer’s application. Low total thickness of prismatic structure/film reduces internal reflection = improved light control. Low weight (Savings on shipping cost and warehouse sq.m.) Unlimited length No join line due to size limitationsCompetitive pricingDKI offer Optical Design collaboration with customers
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
Custom Made Tooling OptionsCustom Made Tooling Options
Your imagination sets the Your imagination sets the limit….limit….
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
Linear PrismsLinear Prisms
Linear FresnelSymmetric PrismAsymmetric PrismLinear Converging LensLinear Diverging LensTIR Prism
Lighting/ Luminaries– Diffusers– TIR Reflectors– TIR Parabolic Reflectors– Light guides
Architectual– Adhesive light guides for
windows, to secure daylight access away from facades
– Decorative Lighting
Design OptionsDesign Options ApplicationsApplications
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
Concentric LensesConcentric Lenses
Refractive FresnelReflective Fresnel (TIR)
Lighting/ Luminaries– Collimators– Collectors– TIR Reflectors– TIR Parabolic Reflectors
Automotive– Headlamps– Rear lamps– Dashboard lighting
Design OptionsDesign Options ApplicationsApplications
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
Lens ArraysLens Arrays
Cone ArrayPyramid ArrayHexagonal ArrayMicrolens Array
Lighting/ Luminaries– Diffusers– Collimators for LED– Collimators for Light
conductors– Angular control to reduce
UGR
Automotive– Rear lamps– Dashboard lighting
Display– LCD backlight diffusers
Design OptionsDesign Options ApplicationsApplications
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
Properties, Properties, DKIDKI MicroPrism™ MicroPrism™
Refractive Index: 1.5XChromatic aberration < PMMAAbbe number: ?Transmission: > 92%
Dimensions:– Width: 700mm– Length: Infinite - ∞– Thickness: Minimum 0.2mm.
Prism features:– Minimum Pitch: 200 Microns– Edge radius ≤ 2 Microns– Custom designs on demand
FlexibleSoft touch optionScratch resistantWeathering resistant version
OpticalOptical PhysicalPhysical
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
LED applicationsLED applications
Refractive Index: 1.5XChromatic aberration < PMMAAbbe number: ?Transmission: > 92%
Dimensions:– Width: 700mm– Length: Infinite - ∞– Thickness: Minimum 0.2mm.
Prism features:– Minimum Pitch: 200 Microns– Edge radius ≤ 2 Microns– Custom designs on demand
FlexibleSoft touch optionScratch resistantWeathering resistant version
OpticalOptical PhysicalPhysical
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
Current ProductsCurrent Products DKIDKI MicroPrism™ MicroPrism™
Radius ≤ 2 micronRadius ≤ 2 micronRadius ≥ 30 micronRadius ≥ 30 micron
The Details Makes The Difference!The Details Makes The Difference!
Light Direction from Source
Light Direction from Source
Light Direction from Source
Light Direction from Source
Large Radius = Diffuse Light Large Radius = Diffuse Light Control!Control!
Small Radius = Precise Light Small Radius = Precise Light Control!Control!
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
DKIDKI Microprism™ makes TIR Microprism™ makes TIR possible..possible..
Critical angle for Total Internal Reflection = 41.4316°
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic SolutionsUniformity Uniformity
improvements!improvements!
Better Better uniformituniformity by y by higher higher Prism Prism resolutionresolution
Visual Visual appearance appearance
Lack of Lack of uniformituniformity due to y due to low low resolutionresolution
Visual Visual appearance appearance
Light & Building 2008 Patent Pending Copyright© DKI Plast as
Advanced Plastic Solutions
Chromatic Abberrations!Chromatic Abberrations!
DKI MicroPrism™ generate less Chromatic Aberrations = Colour DKI MicroPrism™ generate less Chromatic Aberrations = Colour separationseparation