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Polarized sunglasses how good or bad

by:Eugenia     2020-08-09
Polarized sunglasses are different from ordinary sunglasses lenses, polarized sunglasses not only can resist the strong light of uncomfortable, but also can protect the eyes from uv rays. Polarized sunglasses lenses can after the sun's rays to darken, but decreases when the lighting, it became bright again. The polarized sunglasses available in the market has a lot of, how to distinguish good or bad? Ray-ban sunglasses RB4225 men 646/55 what is the function of transparent polarized sunglasses? How to identify? Polarized sun glasses is to use the feature block harmful light, because the sun both in touch any objects by natural reflection or refraction of harmful glare, polarized sunglasses can fully absorb the cause dazzling light and eye damage. Polarized sunglasses because has the function of the polarization of light, so will all the harmful rays of blocking off does not affect the visible light through, can truly achieve the purpose of protecting our eyes. 1. Polarization test card. The simplest method is to use polarization test card glasses to test whether there is polarization effect, general polarized glasses box will be accompanied by polarization test card, if it is not polarized test card can try the following method. 2. Screen test method. Combining polariscope principle of polarized light and screen display principle, when rotating polarized lenses watching screen, the screen will appear black screen phenomenon, which is composed of a single direction, and the polarizer filter screen of light. And because the display screen can be seen everywhere, this also is to identify the most viable method of polarizer. Ray-ban sunglasses RB3532 men 001/68 gold in general has polarized function of sunglasses are good, but it also depends on the specific situation. The polarized lens a little many, but actually has its drawbacks. Although it can filter out a lot of irregular light interference, avoid dazzle, the occurrence of the phenomenon such as harsh, but if the lens itself arc bending cannot show optical optical standard refractive status, the polarization effect is weakened, affect the image authenticity. ( Related: dialectical view polarized sunglasses)
related: polarizer polarizer sunglasses
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