Basic Info.
Model NO.
semi-finished 1.56 photochromic round top HMC
Diameter
70mm
Transmission
> 97%
Guarantee
3~5 Years
Keywords
Sf 1.56 Photogrey Round Top Bifocal Hmc Lens
Brand
Seesen
Product Description
SEMI-FINISHED 1.56 PHOTOCHROMIC ROUND TOP HMC LENS
| MATERIAL REFRACTIVE INDEX = 1.552 TOOLING INDEX = 1.530 | ||||||||||
| Diameter | Nominal Curve | T.C | Rad | Back Curve | E.T | C.T | Sag | Seg Inset | ADD Range | RX Range Recommened |
| 70/28mm | 200 | 240 | 220.53 | 6 | 11 | 6 | 1.18 | 5 | 1.00-3.50 | -2.00D/-5.00D |
| 70/28mm | 400 | 423 | 125.11 | 6 | 8 | 8 | 2.34 | 5 | 1.00-3.50 | -1.00D/-3.00D |
| 70/28mm | 600 | 604 | 87.71 | 6 | 8 | 8 | 3.61 | 5 | 1.00-3.50 | +2.00D/-2.00D |
| 70/28mm | 800 | 802 | 66.06 | 6 | 6 | 8 | 4.9 | 5 | 1.00-3.50 | +2.00D/+5.00D |
What is Photochromic Lens?
| Indoor Protective Lens | Outdoor Protective Lens |
| In the room or at night, the lenses color are basically transparent, the same as the ordinary lenses, like high light transmission performance, relieve visual fatigue,make you see the world more clear. | Lens under the action of ultraviolet light in the sun color, ultraviolet dark color change, deep, shallow light-colored ultraviolet light, isolated from UV damage, anytime, anywhere to protect your eyes. |
Round Top Lens
| You focus through different prescriptions at different distances through the same lens - hence the name. Bifocals (meaning a lens with two points of focus - usually one for distance and one for near) are the most commonly prescribed multifocal lenses. |
Advantages:
About the Coating:
About Custom Service:
About our Factory:
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.