1.499 Round Top / Flat Top / Blended Top (Invisible) Bifocal Lenses
Finished lenses:
a) Nd: 1.499
b) Blank diameter: 70mm, 65mm
c) Segment size: 28mm
d) Power range:
Sph: 0.00 ~ -2.00 / Add: +1.00 ~ +3.00 in 0.25D
Sph: 0.00 ~ +3.00/ Add: +1.00 ~ +3.00 in 0.25D
Semi-finished lenses:
a) Size: 70/28mm, 65/28mm
b) Base: 200, 400, 600, 800
c) Add: +1.00 ~ +3.00
Skype: clearoptical
