Basic Info.
Model NO.
1.67 spin photochromic HMC
Diameter
65/70/75mm
Transmission
> 97%
Keywords
1.67 Spin Photochromic Hmc
Product Description
Photochromic lenses are eyeglass lenses that are clear (or nearly clear) indoors and darken automatically when exposed to sunlight. Other terms sometimes used for photochromic lenses include "light-adaptive lenses" and "variable tint lenses."
What is the photochromic lens?
Photochromic lenses typically will not darken inside a vehicle because the windshield glass blocks most UV rays.
1.67 photochromic lens
| Product Name | 1.67 Spin Photochromic HMC Lens |
| Diameter | 65/70/75MM |
| Monomer | MR-7,Imported From Korea |
| Abbe value | 32 |
| Specific Gravity | 1.35 |
| Power Range | SPH: 0.00~+-15.00 CYL: 0.00~-6.00 |
About the Coating
Comparison of physical properties of lenses
| MR-8 | MR-7 | MR-174 | Polycarbonate(PC) | NK-55 | CR39 | |
| Referactive Index | 1.61 | 1.67 | 1.74 | 1.59 | 1.56 | 1.49 |
| Abbe Value | 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 | Good | Good | Good | Good |
| Static Load Resistance | Good | Good | Good | Good | Good | Good |
Why do we wear the photochormic glass?
About Our Company:
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.