Plactic lens
   -- 1.499 Plactic lens < 1.499 Single vision > < 1.499 Bifcoal > < 1.499 Progressive >
 -- 1.56 Plactic Lens < 1.56 Single vision > < 1.56 Progressive > < 1.56 Aspheric > < 1.56 Photochromic >
 -- 1.60 Plactic Lens < 1.60 Single vision > < 1.60 Progressive > < 1.60 Aspheric > < 1.67 Aspheric height > --1.67 Aspheric height index lens
   -- Semi-finished lens < Single vision > < Bifocal > < Progressive > -- Rx lens < Single vision > < Bifocal > < Progressive >
Glass lens
   --<1.523 White lens > < 1.523 Photo brown &1.523 Photo gray > < 1.70 High index lens >
  Products-> GLASS PIECE-GLASS LENS
   
 
 
  photo interconversion eyeglass is a kind of glass which change color according to light, having character of photo interconversion, i.e., transmissibility change following light, under strong light glass become dark and decrease degree of transparency, the color is brown or gray. With light weak, the glass will recover the transparency to return original color basically colorless. The color-changing eyeglass we produced has good optic interversion performance, chemistry stability light gravity.

Name
Color
Refraction(ND)
Abbe number(υ)
Gravity(d)
KEMG
gray
1.523
42
2.4
KEMC
gray
1.523
42
2.4
 The specification can be changed according to need of customers, the eyeglass with 56-70 diameter can be produced.
 
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