Coating for Optical Applications
Conventional Coloring
 Advantages
- Various types of substrates can be colored.
- The color can be managed by the numerical value.
- The gradation coloring is automatically controlled by computer.
Coloring Method
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WET
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- ACUTE Color, HOYA Color, NIKON Color, SEIKO Color, etc.
- Customized coloring for each color is possible.
- Sample coloring can also be arranged.
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DRY
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- Advantageous for coloring lens in the same light color (for inventory etc.).
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Light Resistance
Item |
Test condition |
Results |
Outdoor exposure |
24 hours
CR39 lens, BR25% |
Color change: E* = 0.5 or less |
Sunshine Weather Meter |
50 hours
CR39 lens, BR50% |
Color change: E* = 1.0 or less |
The color change caused by ultraviolet rays has decreased.
*The above values are not the guaranteed values but the results of the measurement.
Substrates
Refractive Index : 1.50, 1.55, 1.60, 1.67
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