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China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris

China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris Featured Image
  • China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris
  • China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris
  • China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris

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China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris Detail:

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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

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Production Introduction

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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..

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China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris detail pictures

China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris detail pictures

China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris detail pictures

Related Product Guide:
We goal to understand excellent disfigurement from the manufacturing and supply the top support to domestic and abroad clients wholeheartedly for China Cheap price Blue Cut Glasses - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris , The product will supply to all over the world, such as: Iran, Malaysia, Bangladesh, With nearly 30 years' experience in business, we are confident in superior service, quality and delivery. We warmly welcome customers from all over the world to cooperate with our company for common development.
    • The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Prudence from Mali - 2018.02.12 14:52
    This company has a lot of ready-made options to choose and also could custom new program according to our demand, which is very nice to meet our needs.
    5 Stars By Julia from Mongolia - 2017.05.02 11:33

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