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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 Featured Image
  • 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
  • Best Price for Computer Lenses Blue Light - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris

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We will make every effort to be outstanding and perfect, and accelerate our steps for standing in the rank of international top-grade and high-tech enterprises for Photochromic Bifocals, Optical Eyewear, Flat Top Lens, Welcome to set up long-term relationship with us. Best Price For Good Quality in China.
Best Price for Computer Lenses Blue Light - 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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Best Price for Computer Lenses Blue Light - 1.74 Blue Cut Spin Photochromic Gray HMC Optical lenses – Boris detail pictures

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

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

Related Product Guide:
Control the standard by the details, show the toughness by quality. Our firm has strived to establish a highly efficient and stable workers workforce and explored an effective high-quality management system 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: Haiti, Marseille, Zurich, Our company's main products are widely used all over the world; 80% of our products exported to the United States, Japan, Europe and other markets. All stuff sincerely welcome guests come to visit our factory.
    • Timely delivery, strict implementation of the contract provisions of the goods, encountered special circumstances, but also actively cooperate, a trustworthy company!
    5 Stars By Elma from Egypt - 2017.10.13 10:47
    The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.
    5 Stars By Quyen Staten from Israel - 2017.08.21 14:13

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