Seesen Optics 1.61 Asp UV420 Blue Cut Hmc Spin Photochromic Hmc Multifocal Lenses Supplier

• Function: for Presbyopic, for Astigmia, UV Protection, for Myopia
• Abbe Value: 41
• Specific Gravity: 1.30
• Power Range: Sph:0.00~-8.00 +0.25~+6.00 Cyl:0.00~-6.00
• Diameter: 65/70/75mm
• UV Value: 420
• Model NO.: 1.61 ASP UV420 blue cut HMC spin photochromic HMC
• Transmission: > 97%
• Keywords: 1.61 Blue Cut Photochromic Optical Lens

Product Description

What Is Blue Light?

Blue light is naturally produced by the sun but also by computer monitors, smartphone screens and other digital devices.
 

1.61  Blue Cut Photochromic  Lens

Product Name	1.61 ASP UV420 Blue Cut SPIN Photochromic HMC Optical Lens
Diameter	65/70/75MM
Monomer	MR-8 (imported from Korea)
Abbe value	41
Specific Gravity	1.30
Power Range	Sph:0.00~-8.00 +0.25~+6.00 Cyl:0.00~-6.00

Details:


About the Photochromic Lens

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.

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.

Comparison of physical properties of lenses

	MR-8	MR-7	MR-174	Polycarbonate(PC)	NK-55	CR39
Referactive Index	1.61	1.67	1.74	1.59	1.56	1.49
Abbe Value	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	Good	Good	Good	Good
Static Load Resistance	Good	Good	Good	Good	Good	Good

Advantages:


About the Coating

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.