1.67 MR-7 Blue Cut HMC Optical lenses
Production Details
Place of Origin: | Jiangsu | Brand Name: | BORIS |
Model Number: | High Index Lens | Lenses Material: | MR-7 |
Vision Effect: | Blue Cut | Coating Film: | HC/HMC/SHMC |
Lenses Color: | White(indoor) | Coating Color: | Green/Blue |
Index: | 1.67 | Specific Gravity: | 1.35 |
Certification: | CE/ISO9001 | Abbe Value: | 31 |
Diameter: | 75/70/65mm | Design: | Aspherical |
Production Introduction
1. Substrate absorption: the lens substrate is added with anti-blue light factor to absorb harmful blue light in life, so as to achieve the purpose of blue light blocking.
2, film reflection: lens surface coating, through the film will be harmful blue light reflection, blue light barrier protection purpose.
3, substrate absorption + film reflection: this technology integrates the advantages of the first two technologies, double-pronged, double-effect protection. [3]
According to the principle of complementary color, blue and yellow are complementary colors. Whether it is absorbed by the lens substrate or reflected by the film layer, part of the blue light is blocked, so the background color of the anti-blue light glasses will be yellow. The higher the barrier ratio, the deeper the background color of the lens will be. This is the basic physical principle of anti-blue light glasses.
Harmful blue light has extremely high energy, can penetrate the lens to the retina, causing retinal pigment epithelial cells to atrophy and even death. The death of light-sensitive cells can lead to vision loss or even complete loss, and this damage is irreversible. Blue light can also cause macular disease. The lens of the human eye absorbs part of the blue light and gradually becomes cloudy to form cataracts. Most of the blue light penetrates the lens, especially the crystal clear lens of children, which cannot effectively resist the blue light, which is more likely to lead to macular lesions and cataracts.
Blocking blue light for a long time is the most effective way to reduce damage, and the use of blue light blocking glasses can effectively solve this problem.