Danyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical Lenses

Looking for high quality photochromic optical lenses? Danyang is a factory that offers durable and fast-changing 1.61 spin photochromic lenses.
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PRODUCTS DETAILS

Basic Info.

Model NO.
1.61 spin photochromic HMC
Diamater
65/70/75mm
Keywords
1.61 Spin Photochromic Hmc
Brand Name
Seesen

Product Description


Danyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical Lenses
What are the photochromic lens?

Photochromic lenses are made of many lens materials including plastic, glass or polycarbonate. They are typically used as sunglasses that conveniently switch from a clear lens indoors, to a sunglasses depth tint when outdoors, and vice versa.



1.61 photochromic lens
Danyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical Lenses
Product Name Diameter Monomer
1.61 Spin Photochromic HMC Eyeglasses Optical Lenses 65/70/75MM MR-8 (imported from Korea)
Abbe value Specific Gravity Power Range
41 1.30 SPH: 0.00~ -6.00, 0.00~ +6.00 CYL: 0.00~ -6.00


About the Coating
Danyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical Lenses
Depending on the layers of coating, lenses differ in functionality. Coating consists of much technicality as much as lenses do, here is ' how lens coating works ' for your reference. 
 
Danyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical Lenses

Hard Coating: To protect the uncoated lenses from scratch resistance.


AR Coating/Hard Multi Coating: To protect the lens effectively from reflection, enhance functional and charity of your vision

Super Hydrophobic Coating/Crazil Coating: To make the lens waterproof, antistatic , anti slip and oil resistance. 



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 of the photochromic lens

Reduced costs - buying a single pair of dual purpose photochromic glasses that can provide vision for both indoors when clear and providing sunglasses protection outside is more cost effective than buying two separate pairs.

Danyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical LensesAbout the Custom Service:
Danyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical Lenses

About our Factory:
Danyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical LensesDanyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical LensesDanyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical LensesDanyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical LensesDanyang High Quality Fast Change 1.61 Spin Photochromic Hmc Transition Optical Lenses
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.


 

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