Transition 1.56 Lens Optical Lens Photochromic Grey/Brown Eyeglasses Prescription Lenses

• Function: for Presbyopic, for Astigmia, UV Protection, for Myopia
• Material: Nk55, Imported From Japan
• Abbe Value: 42
• Specific Gravity: 1.16
• Coating Choice: UC, Hc, Hmc, Shmc, Green, Blue
• Power Range: Sph: -20.00~+11.00 Cyl: 0.00~-6.00
• Model NO.: 1.56 Photogrey Lens
• Transmission: > 97%
• Diameter: 65/70mm
• Guarantee: 3~5 Years
• Key Word: Photochromic Transtion Lens

Product Description

Product Name	1.56 Photochromic Lens
Diameter	65/70mm
Monomer	NK55 (imported from Japan)
Abbe value	42
Specific Gravity	1.15
Power Range	SPH: -20.00~+11.00 CYL: 0.00~-6.00

Photochromic lenses are available in nearly all lens materials and designs, including high indexes , bifocal and progressive. An added benefit of photochromic lenses is that they shield your eyes from 100 percent of the sun's harmful UVA and UVB rays.

Because a person's lifetime exposure to sunlight and UV radiation has been associated with cataracts later in life, it's a good idea to consider photochromic lenses for children's eyewear as well as for eyeglasses for adults

Other products:
 

	MR-8	MR-7	MR-174	Polycarbonate(PC)	NK-55	CR-39
Refractive Index	1.61	1.67	1.74	1.59	1.56	1.499/1.50
Abbe Number (ve)	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	OK	Good	OK	OK
Static Load Resistance	Good	Good	OK	Good	Poor	Good

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.