I believe that many people will hear the term polarized sunglasses when they buy sunglasses, so what are polarized sunglasses? What is the difference between this kind of sunglasses and ordinary sunglasses?
Polarized sunglasses are a kind of sunglasses. It can effectively filter out glare and are manufactured according to the principle of polarization of light. By effectively eliminating and filtering the scattered light in the beam, the light can be input into the visual image of the eye on the transmission axis of the normal track, so that the visual field is clear and natural.
What is the difference between polarized sunglasses and ordinary sunglasses?
In our daily life, in addition to sunlight and ultraviolet rays, glare can also cause damage to the eyes. Compared with ordinary sunglasses, polarizers have added the function of filtering out glare, realizing the real protection of the eyes. The general sunglasses only use the effect of dimming, but reduce the intensity of harmful light. Polarized glasses can completely block the dazzling glare caused by various factors such as scattering, refraction and reflection. The eyes can also be protected by light activity.
As we all know, when the sun’s rays are strong or the surrounding environment reflects strong sunlight, you need to wear a pair of sunglasses, which can not only prevent the damage of ultraviolet rays to the eyes, protect the eyes, but also have a concave shape. However, buying sunglasses is also a science, and a poor choice will not achieve the purpose of protecting your eyes. So what issues should be paid attention to when choosing sunglasses?
The UV protection function of the lens must be up to standard
UV protection is the primary function of sunglasses. If the UV protection is not up to standard, it will easily damage the health of the eyes. Therefore, when shopping for sunglasses, be sure to choose “100% UV protection”, “UV400”, “UV protection” and other signs on the lens or packaging.
The choice of lens color needs to be cautious
The color of the lens should be based on the principle that the color of the surrounding environment is not distorted. The edge of the object is clear, and the signal lights of different colors can be effectively identified. The colors of the lenses are gray, brown, and green, because the lenses of these colors absorb infrared and ultraviolet rays better.
The quality of cheap Oakley sunglasses
The quality of sunglasses lenses is a vital part of the entire pair of sunglasses. When buying sunglasses, be sure to pay attention to whether there are scratches, impurities, bubbles, and stripes on the surface of the sunglasses. In addition, the clarity of the lens and the flatness of the lens surface are also very important. You need to pay careful attention to these details when buying.