Basic Info.
Model NO.
1.56 Photogrey Lens
Transmission
> 97%
Diameter
65/70mm
Guarantee
3~5 Years
Key Word
Photochromic Lens
Product Description
| 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 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 |
FAQ:
1. Are your company a manufacturer or a trade company?
We are a manufacturer with many years exporting experience. Our factory is located in Jiangsu province.
2. Can your products be customized?
We accept OEM &ODM orders. Actually most of our products are customized. We will try our best to fulfill your requirements about the material, the size, the printing.
3. How can I get sample from you?
Just send us your requirements, then we will send samples accordingly.
4. How many days will samples be finished? How about mass products?
Generally, we need 5-7 days to finish the sample production.As for the mass products, it depends on your order quantity.
5. How do you control lens quality?
Producing process is in vacuum dust-free shop, like prepare material, mixed material and take out .Four times quality checking during production process.