Complaint
Product Name | 1.56 Photochromic Lens |
Diameter | 65/70mm |
Monomer | NK55 (imported from Japan) |
Abbe value | 42 |
Specific Gravity | 1.15 |
| Power Range | SPH: -20.00~+11.00 CYL: 0.00~-6.00 |
Photochromic Lens
Photochromic lenses are available in nearly all lens materials and designs, including high indexes , bifocal and progressive. An added benefit of photochromic lenses is that they shield your eyes from 100 percent of the sun's harmful UVA and UVB rays.
Because a person's lifetime exposure to sunlight and UV radiation has been associated with cataracts later in life, it's a good idea to consider photochromic lenses for children's eyewear as well as for eyeglasses for adults.
Other products:
| MR-8 | MR-7 | MR-174 | Polycarbonate(PC) | NK-55 | CR-39 | |
| Refractive Index | 1.61 | 1.67 | 1.74 | 1.59 | 1.56 | 1.499/1.50 |
| Abbe Number (ve) | 41 | 32 | 33 | 32 | 37.5 | 58 |
SPECIFIC GRAVITY | 1.30 | 1.35 | 1.47 | 1.20 | 1.28 | 1.32 |
| Diameter | 65/70/75 | 65/70/75 | 65/70/75 | 65/70/75 | 55/60/65/72 | 55/60/65/70 |
| Impact Resistance | Good | Good | OK | Good | OK | OK |
| Static Load Resistance | Good | Good | OK | Good | Poor | Good |
Our company mainly focus on single vision 1.49/1.56/1.59/1.6/1.67/1.74 about flat top lenses/ blue cut lenses/photochromic lenses/polarized lenses/polycarboate lenses/ultravex lenses and so on.
FAQ:
