1) Nd: 1.56
2) Abbe value: 42
3) Specific Gravity: 1.28
4) Density: 1.14g/cm3
5) Available color: brown, grey, bule, green, purple, pink, orange
6) Diameter: 65mm, 70mm
7) Power range:
8) Features:
a) Color changing with in few seconds between outdoor and indoor
b) Color darkening concentration reach 70% for PhotoGrey and PhotoBrown and 55% for pink blue, green, purple and orange
c) High original transmission, high rate of darkening in the sun, High rate of fading out of the sun
d) 100% intercept to uv400nm ray
9) Semi-finished lenses
Base: 2.00, 4.00, 6.00, 8.00
