Basic Info.
Material
Plastic
Type
Aspherical Lens
Coating
EMI
Lenses Color
Clear
Design
Spherical
Lens Color
Grey;Brown
Transmission
86%
Abrasion Resistance
6~8h
Transport Package
Carton
Specification
65mm/70mm
Trademark
OEM
Origin
China
HS Code
90015099
Production Capacity
10000 Pairs Per Day
Packaging & Delivery
Package Size
50.00cm * 33.00cm * 41.00cm
Package Gross Weight
15.000kg
Product Description
What is blue light?
Blue light generally is defined as visible light ranging from 380 to 500 nm. Blue light sometimes is further broken down into blue-violet light (roughly 380 to 450 nm) and blue-turquoise light (roughly 450 to 500 nm).So approximately one-third of all visible light is considered high-energy visible (HEV) or "blue" light.
Blue Cut Lenses
Blue cut lenses feature a special coating that reflects harmful blue light and restricts it from passing through the lenses of your eyeglasses. Blue light is emitted from computer and mobile screens and long term exposure to this type of light increases the chances of retinal damage. Hence, wearing eyeglasses having blue cut lenses while working on digital devices is a must as it may help in reducing the risk of developing eye related problems.
What Are Photochromic Lenses?
More commonly, photochromic lenses from clear to tinted when exposed to sunlight, effectively allowing a single pair of eyewear to function as both your sunglasses and eyeglasses! Not only do these types of lenses help to reduce glare from the sun, they also provide 100 % UV-protection for your eyes regardless of tint whether their tinted or not.
How Do Photochromic Lenses Work?
Well for starters, since they adapt their tint based on how bright it is outside, glasses with variable tint lenses are ideal for people who wear both glasses and sunglasses, and frequently go inside and outside. One of the main advantages of combining the two into one saves you from having to carry around two sets of glasses everywhere. That means no more trying to fit bulky glasses cases in your pocket or trying to remember the last place you stored your shades.
Well for starters, since they adapt their tint based on how bright it is outside, glasses with variable tint lenses are ideal for people who wear both glasses and sunglasses, and frequently go inside and outside. One of the main advantages of combining the two into one saves you from having to carry around two sets of glasses everywhere. That means no more trying to fit bulky glasses cases in your pocket or trying to remember the last place you stored your shades.
About the material:
About our factory:
WDO (WEIHAI DINGXIN OPTICAL) is one of the most Potential Finished and Semi-Finished Optical Lenses factory located in Weihai City, China.
Our Key & Advantage Products:
Single Vision Lens:CR-39;1.56;1.60;1.67;1,74
Bifocal Lens: CR-39; 1.56;1.60
Progressive Lens: CR-39; 1.56; 1.60
Functional Lens: Blue Cut, Photochromic; Photomagic +UV420cut, Polarized; Polycarbonate
RX Service: Free Form; Special Coating; Special Power Range
Packing and shipping
Our company mainly focus on single vision 1.49/1.56/1.6/1.67/1.74 about flat top lenses/ blue cut lenses/photochromic lenses/polarized lenses/polycarboate lenses/ultravex lenses and so on. All of our lenses provide Two year's warranty.