Specifications
CR39 progressive lens:Index: 1.499
Corridor: 14mm and 17mm
Treatment: UNC, HC and HMC
Finished lenses:
1) Imported Israel moulds
2) Normal corridor (17mm):
a) Good for medium and large size frames
b) Popular in European countries
3) Short corridor (14mm):
a) Good for small and medium size frames
b) Popular in Asia and South America
4) Power range:
a) Plano ~ +3.00 / ADD +1.00 ~ +3.00
b) -0.25 ~ -2.00 / ADD +1.00 ~ +3.00
Semi-finished lenses:
1) Diameter: 75mm, 70mm
2) Normal corridor (17mm), Short corridor (14mm)
3) Base: 200, 400, 600, 800
4) Add: +1.00 ~ +3.00
