Specifications

1) glass bifocal lenses
2) Nd=1.523
3) Dia: 70/28mm
4) Abbe value: 38
5) Specific gravity: 1.28

1) Product Name: 1.523 glass bifocal lenses

2) High scratch resistance, Fast dark, fast clear

3) New design, slim and 35% thinner than CR-39 lens

4) HMC EMI , hydrophobic coating available

5) Available Color: Grey/Brown

6) Products are passed the high test of CE and ISO

7) Semi-finished or finished are available

8) Package: white envelopes or as customers' requirement