Basic Info.
Model NO.
Semi-Finished 1.56 Progressive HMC
Specific Gravity
1.28
Power Range
Sph: 0.00~+3.00 0.00~-2.00 Add: +1.00~+3.00
Diameter
75/12&14mm
Transmission
> 97%
Brand
Seesen
Guarantee
3~5 Years
Keywords
Sf 1.56 Progressive Multifocal Lens
Trademark
Seesen
Origin
Danyang, China
Product Description
SEMI-FINISHED 1.56 PROGRESSIVE LENS
| MATERIAL REFRACTIVE INDEX = 1.56 TOOLING INDEX = 1.530 | ||||||||
| Diameter | Nominal Curve | Front Radius | Front Curve | Rear Curve | E.T | C.T | Front Sag Ring 50mm | RX Range Recommened |
| 75mm | 100B | 378.57 | 1.4 | 5 | 15 | 9 | 0.53 | -3.25~-6.00 |
| 75mm | 300B | 155.88 | 3.4 | 5 | 8.65 | 6.5 | 2.02 | -1.00~-3.00 |
| 75mm | 500B | 92.98 | 5.7 | 5 | 7.5 | 9.2 | 3.42 | +0.25~+3.00 |
What is progressive lens?
progresive lenses provide the full range of focus from distance, intermediate and near with gradual changing power. Unlike bifocals, these lenses provide more natural vision without any lines.
Differences:
Coating Choices:
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.