China Optical Lenses Price Semi-Finished Sf 1.56 Nk55 Progressive Hmc Multifocal Optical Lenses

• Customization: Available
• Function: for Presbyopic, for Astigmia, UV Protection, for Myopia
• Material: Nk55, Imported From Japan
• Model NO.: Semi-Finished 1.56 Progressive HMC
• Type: Anti-Reflective Lens
• Coating: Hc,Hmc,Shmc,Green,Blue
• Lenses Color: Clear
• Abbe Value: 37.5
• 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.