Progressive lens instruments and tools

Usage:Ⅰ Trial Frame

As a multi-functional trial frame, the pupil distance, pupil height, angle,

temple length, cylinder axis and VD can be adjusted.

1. Adjust the pupil distance and let the patient wear the trial frame.

2. Adjust the angle of trial frame and temple length after confirming the right pupil height and VD.

3. Four pieces of trial lenses can be inserted in each side of the trial frame. Placed closest to the cornea, the

lenses should be: high-power lens, low-power lens, cylinder and progressive lens.

Function:Ⅰ Testing the lens strain

Usage:

1. Power on. Hold the lens between the light source and the

polarized filter and check.

2. If it shows the same as Pic. 2, the lens strain is not in the balance. The imbalance is proportional to the darkness of

the color. The lens strain can be reduced by edging the darkest part of the lens.

3. If the lens strain is not kept in balance, the patient feels comfortable when he looks straight ahead, but when he

looks something aside, he feels uncomfortable and has unclear view. This situation usually appears on the full or

half frame glasses, but not for rimless ones.

4. The strain of PC lens can not be avoided. However, the imaging quality will be much better if the lens strain is small.

Ⅱ PAL Identifier

Usage:

Put the lens above the parallel light grid and observe the four areas of the lens. It is easy to study and mark. Show as

the pictures:

Ⅲ Showing the invisible marks

Usage:

Put the lens on the grid and observe it with the above magnifier.

After confirming the four areas, keep the distant area and near

area in a horizontal line and find out the invisible marks on both

sides (ADD value is usually on one side and the brand marks

would be on the other side).

Ⅳ Testing the quality of the lens

Usage:

In general, this instrument is very important during

the process of fitting and testing progressive lenses.

It is convenient to observe the surface of the lens

with the light and the magnifier. Scratching, bubbling

and other coating problems can be checked out.

Power:AC 110-240V,50/60HZ

Dimension:220*220*360mm

Weight:0.8kg

This device will greatly assist in the quick and easy location of the various

manufacturer's marks placed on progressive lenses.

This is achieved by special background contrasting and lighting.

Adjustable inclination for a better reading.

LED bulbs.

The mounted magnifier assists in the reading of these marks.

. manufacturer's markings.

. Lens type ID.

. Marks.

. Added power.

Test the lens strain to avoid the new blurry area.

Check the quality of the surface and coating of the lens.

CT 4328S

Features:This product is necessary for progressive optometry. With it, the optometrists can have better and effective

communication with the patients and the patients can also experience advantages and disadvantages of the

progressive glasses by themselves before buying progressive glasses. It is easy to operate and suitable for all people.

CT 4328

CT 4328:

1. PROGRESSIVE LENS: +1.00D~+3.00D in 0.25D steps

(9pairs lens), +3.50D(1 pair)

2.Trial frame: 1 pair

3. Flipper (Polarized lens and Red/Green lens)

4. Dimension: 340*270*110mm

5. Weight: 2.5 kg

CT4328S:

1. PROGRESSIVE LENS:

+1.00D~+3.00D in 0.25D steps(9 pairs lens), +3.50D

(1 pair) +1.75(1 pair, Students progressive lens,

short corridor 10mm) Bifocal lens(1 pair) Short

corridor 14mm(1 pair)

2. PD Ruler: 1pc

3. Hand lamp: 1pc

4. Dimension: 250*170*72mm

5. Weight: 0.9kg

Trial lenses

Usage:

The cross mark on the lens must be aimed at the pupil

center. To get a better experiencing effect, the horizontal

lines on the trial lens should be level. In picture 2, the

location of the right lens is correct, while the left one is

wrong.

20 pieces of the progressive lenses can be divided into

left and right lenses (+1.00D~+3.00D in 0.25D steps,

+3.00D). It is easy to find the R/L mark and ADD power

on each handle.

Polarized and Red/Green lens FlipperUsed with the near multi-functional visual chart (CT2302N),

it can test binocular aniseikonia, refraction balance and

imaging fusion.

Put the trial clips with trial lenses on the frame to

experience the progressive lenses.

Trial clip

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Feature:

Usage:It can be applied in the presbyopia testing.

Specification:LED bulbs

Power: input AC 100~240V 50~60HZ Output DC12V

Dimension: 335*244*20MM

Weight: 0.75 kg

Showing the invisible marks quicklyUsage:

1. Hold the lens above the grid, the distance between the grid and lens is

between 50cm and 80cm.

2. Horizontally move the lens slowly and find out the invisible marks on

the lens.

3. Identify the marks with the oil pen.

Recovering regular marksUsage:

Make the invisible marks on the lens, coincident with two small circles on the picture so that the area of the cross mark,

distant area, optical center and near area can be confirmed quickly.

Checking the diameter and testing the near area of the lensUsage:

Mark the optical center on the glasses, make them coincident with the cross

marks on the picture. The position of the lens edge indicates the smallest

diameter of the original lens. If the near area is within the scope of the diameter, the glasses

can be processed.

Specification:LED



Weight: 0.75 kg

MEASUREMENT CARD OF PROGRESSIVE GLASSES

Verify the PD & Height of ProgressiveUsage:

Center the frame over the pyramid lines, with The

Fitting Cross lined up with the top horizontal line,

marked “0”. This is the 180° line as shown on

the lens diagrams in the Progressive identifier.

With the frame in this position, determine the monocular PD for each

lens by reading the number on the horizontal line directly underneath the 180° line.

With the Fitting Cross positioned on the top line, the fitting height of each lens can be determined by reading the

number on the line where the bottom of the lens rests.

CT 4116

Usage:1. If the patients need to fit glasses for computer, the assessment

chart will be indispensable. The optometrists can regulate the

lens degree until the patients get the clearest vision

2. The distance is usually between 0.6m and 0.8m. The optometrists

can get to know the clear view of the patients. Generally, the

scope of clear eyesight is broader, the progressive segment is wider.

3. The chart is used to test and adjust the vision in the intermediate distance.

LED bulbs



Weight: 6 kg

In the process of progressive optometry, the communication between optometrists and the patients is limited. It is

difficult for them to come to an agreement on the optometry. This product is designed to solve this problem. With

the chart, the progressive glasses users can directly express their visual feeling in a special distance so that the

optometrists can correctly know their clear, deformed and blind visual area. As professionals, optometrists can offer

accurate data of the refraction, while the users can also experience the optometry process by themselves. Near

distance visual assessment chart is similar to the middle distance chart.

Instructions

First, clip this measurer on the frame; aim the center point at the intermediate position of the bridge. Then, adjust the

measuring pieces by the knobs on both sides. When the upper edge of the measuring pieces aligned with the pupil

center, the pupil height can be read at the lower edge of the frame.

Feature:Convenience, visualization, easy operation and accuracy make it indispensable during the optometry.

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Documents

Progressive lens instruments and tools