Basic Info.
Model NO.
SF 1.56 Photochromic FT-28 Lenses
Transmission
> 97%
Diameter
70mm
Guarantee
3~5 Years
Key Word
Sf 1.56 Photogrey Flat Top Bifocal Hmc Lens
Brand
Seesen
Product Description
SEMI-FINISHED 1.56 PHOTOCHROMIC FLAT 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 | 6.00 | 11.00 | 6.00 | 1.18 | 5 | 1.00-3.50 | -2.00D/-5.00D |
| 70/28mm | 400 | 423 | 125.11 | 6.00 | 8.00 | 8.00 | 2.34 | 5 | 1.00-3.50 | -1.00D/-3.00D |
| 70/28mm | 600 | 604 | 87.71 | 6.00 | 8.00 | 8.00 | 3.61 | 5 | 1.00-3.50 | +2.00D/-2.00D |
| 70/28mm | 800 | 802 | 66.06 | 6.00 | 6.00 | 8.00 | 4.90 | 5 | 1.00-3.50 | +2.00D/+5.00D |
Other Products
| Vision Effect | 1.499 | 1.56 | 1.59 PC | 1.61 | 1.67 | 1.74 |
| Single Vision | √ | √ | √ | √ | √ | √ |
| Bifocal | √ | √ | | | | |
| Progressive/Multifoca | √ | √ | √ | | | |
| Photochromic | | √ | √ | √ | √ | |
| UV420 Blue Light Blocking | | √ | √ | √ | √ | √ |
| UV400 | | √ | | √ | √ | √ |
| Blue Block Photochromic | | √ | √ | √ | √ | |
| Blue Block Progressive | | √ | √ | √ | | |
| Blue Block Photochromic Progressive | | √ | √ | | | |
| Photochromic Progressive | | √ | | | | |
| Polarized | √ | √ | | | | |
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.