Coating for Optical Applications
Hard Coating for Plastic Lenses
Advantages
- NIDEK offers hard coating, which is free of interference fringes, for various types of lenses.
- By applying the special plastic IMA coating, even a thin, high index lens can meet the FDA standard* for shock resistance.
*FDA standard for shock resistance: The lens does not crack when hit by a 16.2g steel ball dropped from 127 cm high.
Optical Properties
Refractive Index : 1.67
NIDEK's AR coating can be applied to any refractive indices.
Both sides
Physical Properties
Item |
Test condition |
Results |
Abrasion |
Steel wool scratch
1.5 Kg, 5 strokes
500 g, 50 strokes |
< 5 scratches
< 5 scratches |
Adhesiveness |
Crosshatch Tape Test
(3 times) |
Passed |
Liquid resistance
Hot water |
30 minutes, 80°C |
Passed |
Heat resistance |
1 hour, 75°C |
Passed |
*The optical and physical properties are not the guaranteed values but the results of the measurement.
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