|wholesale optical lens supplier resin cr39 transition grey lenses photochromic optical lenses|
|1.56||65/70MM||NK55 (imported from Japan)|
|Abbe Value||Specific Gravity||Lenses Color|
|5 years||>97%||SPH: 0~ -20.00, 0~ +11.00, CYL: 0~ -6.00|
What are the photochromic lens?
Indoor Protective Lens: In the room or at night, the lenses color are basically transparent, the same as the ordinary lenses, like high light transmission performance, relieve visual fatigue,make you see the world more clear.
Outdoor Protective Lens: Lens under the action of ultraviolet light in the sun color, ultraviolet dark color change, deep, shallow light-colored ultraviolet light, isolated from UV damage, anytime, anywhere to protect your eyes.
Hard Coated: Also can be called HC coating, is to enhance the hardness of the lens to prevent the substrate scratch.
Hard Multi Coated: Also can be called HMC or AR coating, is to protect the lens effectively from reflection.