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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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Our business promises all users of the first-class items and the most satisfying post-sale company. We warmly welcome our regular and new prospects to join us for 1.56 Index Lenses, Sun Lens, Pc Lens Glasses, Good quality and competitive prices make our products enjoy a high reputation all over the word.
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 will devote ourselves to providing our esteemed customers with the most enthusiastically thoughtful services 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: Sri Lanka, Jakarta, Senegal, Since the establishment of our company, we have realized the importance of providing good quality products and the best before-sales and after-sales services. Most problems between global suppliers and clients are due to poor communication. Culturally, suppliers can be reluctant to question things they do not understand. We break down those barriers to ensure you get what you want to the level you expect, when you want it.
    • We are old friends, the company's product quality has been always very good and this time the price is also very cheap.
    5 Stars By tobin from Bangalore - 2017.05.02 11:33
    Reasonable price, good attitude of consultation, finally we achieve a win-win situation,a happy cooperation!
    5 Stars By Margaret from Albania - 2017.02.18 15:54

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