CR-39 1.499 sigle Vision Lens UC
I. Specifications:
| Index | Monomer | Abbe value |
| 1.499 | CR-39, imported from PPG | 58 |
| Specific Gravity | Transmission | Coat |
| 1.32 | 98%-99% | HC/HMC/UV/EMI |
| Diameter | Spheical | Cylinder |
| 65/70mm | -6.00~+6.00 | 0.00~-4.00 |
II. Coating Choice:
Depending on the layers of coating, lenses differ in functionality. Coating consists of much technicality
as much as lenses do, here is ' how lens coating works ' for your reference.
III. 1.49 Series Of Products:
| Visual Effect | Type | Diameter(mm) | Coat |
Single Vision | Spheric | 65/70/72 | UC, HC, HMC, SHMC |
| Aspheric | 65/70 | UC, HC, HMC, SHMC | |
Bifocal | Round Top | 70/28 | UC, HC, HMC, SHMC |
| Flat Top | 70/28 | UC, HC, HMC, SHMC | |
| Progressive | Long /Short Corridor | 75/12&14 | UC, HC, HMC, SHMC |
| Photochromic | Green/Gray/Brown | 65/70 | UC, HC, HMC, SHMC |
| Blue Cut | Green/Blue coating | 65/72 | UC, HC, HMC, SHMC |