Knowledge

Yellow lens sunglasses can filter 100% ultraviolet rays, allowing infrared and 83% visible light to penetrate the lens. Its biggest feature is that it can filter most of the blue l

​Choosing the wrong sunglasses can cause damage to your eyes and your body. If your body has the following symptoms, it means you should change a pair of sunglasses immediately.

When wearing glasses, please grasp the temples with both hands and remove them from the front. Wearing glasses with one hand while taking off the glasses will easily cause deformat

Wearing sunglasses for people who are colorblind does not have much effect. However, some color-blind patients lack the ability to distinguish only a few colors, and they are even

​Sunglasses were not used to block sunlight when they first appeared. In 1752, James Ayscough used green or blue tinted lenses to make glasses for the first time.

​If you are sweating profusely, you will find that there is a clear difference between ordinary sunglasses and cycling glasses. The heat from your body will fog a pair of ordinary

​Most riders ride on roads, and on sunny days, roads reflect sunlight better than mud or grass. Due to different riding posture, cyclists have more time to look directly at the roa

​To choose a suitable pair of cycling glasses, you need to consider many factors. In addition to considering the comfort of wearing, the other most important factor is the color of

It is not recommended to wear anti blue light glasses for a long time in daily life, because anti blue light glasses filter some blue light and the picture will be yellow when view

Anti blue light glasses mainly reflect harmful blue light by coating on the lens surface, or absorb harmful blue light by adding anti blue light factor to the lens substrate, so as

​The anti-radiation lens of computer goggles can not only effectively absorb harmful electromagnetic radiation emitted by TVs and computers, but also provide comprehensive protecti

​Because computer radiation comes from electromagnetic waves, these waves have a certain wavelength and amplitude, and the anti-radiation film is based on the wave of light and int