Specifications

photochromic lens (Brown)
Single vision, Bifocal and progressive lens
Treatment: HC, HMC

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:

SPH: 0.00 ~ +8.00 / CYL: -0.25 ~ -2.00

SPH: 0.00 ~ -8.00 / CYL: -0.25 ~ -2.00

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