Basic Info.
Product Description
In life, there are too many light sources will produce harmful light, especially the sun; There are three kinds of light emitted from sunlight: visible light, infrared light and Ultraviolet light. Among them, ultraviolet light causes serious damage to human skin and eyes. Above, Visible light ray (310~780nm); Ultraviolet rays are divided into UVA, UVB, UVC (310nm) and above, Blue light, among which UVA, UVB, UVC are harmful rays. If exposed to the sun for a long time, they will cause damage to the body. UVB has a serious impact on vision, and Tanning Ray is the light that burns black skin. Most corners of the eye absorb this UVB light, so be sure to block it out. Polarized sunglasses because it has the function of polarizing light, so it can block all the harmful light but does not affect the transmission of visual light, can really achieve the function of protecting the eyes. Polarized sunglasses in addition to the basic UV protection function, but also anti-glare, road reflection light, water scale light, etc., suitable for driving, fishing, tourism, daily wear. 
Lens: A piece of glass or other transparent material with one or more curved surfaces through which objects appear clear, larger, or smaller. Usually used in glasses, cameras, telescopes, etc
Classification: Lenses can be divided into the following five types according to different materials:
Resin lens special lens space lens glass lens PVC lens
The index of refraction refers to the refractive index of the lens, and the higher the index, the thinner the lens. Refractive index generally: 1.49, 1.56, 1.61, 1.67, 1.74.
BORIS OPTICAL is one of the most Potential Finished and Semi-Finished Optical Lenses factory located in Danyang City, China. It was establish in 2012 with covering 20000 spm and 150 employees. The annual production and sales of lenses are 30 million pieces, and the annual sales have exceeded 100 million for five consecutive years.
Our Key & Advantage Products:
Single Vision Lens:1.49;1.56;1.59;1.60;1.67;1.74
Bifocal Lens: 1.49; 1.56
Progressive Lens: CR-39; 1.56; 1.60
Functional Lens: Blue Cut, Photochromic; Photochromic +UV420 Blue cut; Sunglasses; Polarized; Polycarbonate
RX Service: Free Form; Special Coating; Special Power Range
| 1. Could you provide samples? |
| Of course, free samples can be sent to you, but please help us pay the freight fee. |
| 2. What Certification do you have for your optical lens? |
| FDA, CE, ISO9001 certification is available. |
| 3. What is the MOQ of optical lens? |
| We dont have Min Order quantity requirement. But if the quantity order is too small, we have to charge extra delivery fee. |
| 4. Could you provide OEM service? |
| Sure, just send us your requirements. |
