Best Price for Computer Lenses Blue Light - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris
Best Price for Computer Lenses Blue Light - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris Detail:


Production Details
|
Place of Origin: |
Jiangsu |
Brand Name: |
BORIS |
|
Model Number: |
Photochromic Lens |
Lenses Material: |
SR-55 |
|
Vision Effect: |
Single Vision |
Coating Film: |
HC/HMC/SHMC |
|
Lenses Color: |
White(indoor) |
Coating Color: |
Green/Blue |
|
Index: |
1.74 |
Specific Gravity: |
1.47 |
|
Certification: |
CE/ISO9001 |
Abbe Value: |
32 |
|
Diameter: |
75/70/65mm |
Design: |
Asperical |

Production Introduction

The refractive index:
This is one of the most common lens parameters, the refractive index, by definition, is the ability of a lens to bend light.
Under the same conditions, the higher the refractive index, the thinner the lens.
The common refractive index is 1.50 (1.49, 1.51), 1.56 (1.55), 1.61 (1.60, 1.59), 1.67 (1.66), 1.71, 1.74 (1.73). The refractive index of some materials in parentheses will be deviated from the standard refractive index value, which also belongs to the normal category.
All of these are the refractive index of resin lenses (no way, they are all resin lenses now), which gets thinner and thinner in the future, that is to say, 1.67 refractive index lens is thinner than 1.56, and 1.74 is the thinest..
Product Process

Product Video
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We support our buyers with ideal high quality products and high level service. Becoming the specialist manufacturer in this sector, we have gained rich practical experience in producing and managing for Best Price for Computer Lenses Blue Light - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris , The product will supply to all over the world, such as: America, Leicester, Grenada, We follow up the career and aspiration of our elder generation, and we're eager to open up a new prospect in this field, We insist on Integrity, Profession, Win-win Cooperation, because we have now a strong backup, that are excellent partners with advanced manufacturing lines, abundant technical strength, standard inspection system and good production capacity.
The sales person is professional and responsible, warm and polite, we had a pleasant conversation and no language barriers on communication.




