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The role of polarized sunglasses?_Sunglasses knowledge_

by:Eugenia     2022-02-22
Sunglasses are not only for UV protection and eye protection, but also become the darling of today's fashion industry, and polarized sunglasses add new functions to ordinary sunglasses. For the entry of stray light, glare and other light, it has a good filtering effect to protect the eyes. Let's take a look at the role of polarized sunglasses. Polarized sunglasses are made according to the principle of polarization, giving another layer of protection. Because of the polarized film layer added to the lens, polarized sunglasses can use its polarization to guide the direction of light to remove the cluttered light entering the human eye and play an anti-glare role. Polarized light is formed by waves that all vibrate in the same direction, whereas normal light is formed by waves that vibrate in no direction. Generally speaking, reflected light is an orderly light. The polarizing film in polarized sunglasses has a strong filter for this reflected light, and this lens only allows polarized waves that vibrate in a certain direction to pass through. The reflected light on the road is a special kind of reflected light, which is manifested in the disorder of the light. The polarized film layer in the polarized sunglasses can play a role. It does not allow the light waves that vibrate parallel to the road to pass. In fact, the long molecules of the filter layer are directed horizontally and can absorb horizontally polarized light. In this way, most of the reflected light is eliminated without reducing the overall illumination of the surrounding environment. In addition to some reflected light, the harmful light in life is the most mentioned ultraviolet light. Ultraviolet rays not only cause damage to the skin of the human body, but also cause great damage to the eyes and cause eye diseases. The anti-ultraviolet film in polarized sunglasses can effectively resist ultraviolet rays and protect the eyes. For some people who have undergone ophthalmic surgery, if they are not suitable for the light outside, wearing polarized sunglasses can play a very good role in protecting their eyes. Polarized sunglasses are especially used in many occasions. For example, when driving, with polarized sunglasses, you don't have to worry about the light in front of you being too strong and the lights of the vehicle being too dazzling. When fishing, you don't have to worry about the reflected light from the writing. Outdoor sports, do not have to worry about UV damage. This is why polarized sunglasses are used as driving mirrors, fishing mirrors, etc.
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