Several main points of choosing a polarizer

u003cbru003eSunglasses are also called polarized lenses. They are a trendy item for summer travel, just like a magic mask. As long as you wear them, you can instantly change the same star shape. But do you know how to choose the dazzling array of sunglasses on the market? The editor has compiled the following major points for everyone: 1. The first consideration is the quality of polarized sunglasses. The primary function of polarized sunglasses is to prevent ultraviolet rays and filter polarized light. Good polarized sunglasses lenses can block more than 90% of the penetration of ultraviolet rays. Please choose polarized sunglasses with a 'UV400' good blocking ultraviolet logo; if you wear them, they cannot block ultraviolet rays and Inferior polarized sunglasses with polarization filtering function, such as dark sunglasses, as the light entering the human eye becomes darker, the pupil of the human eye becomes larger, and the ultraviolet rays entering the eye increase, which increases the damage to the human eye. 2. Will there be discomfort in long-term wear. Genuine polarized sunglasses should be comfortable to wear; if you feel discomfort, dizziness, headache, dry eyes, tingling and other bad feelings after wearing them, please quickly remove them; inferior or imitation sunglasses will generally cause dizziness and headache Generally, inferior lenses have no technology and functionality at the time of manufacture, and the lens materials are also very inferior. Choosing inferior polarized sunglasses can not protect the eyes, on the contrary, it will cause harm. Third, the choice of polarized sunglasses should focus on the protective function of the frame. In outdoor sports, it can effectively prevent wind and foreign objects from irritating the eyes. In addition, the hardness of the polarized lens and the flexibility of the frame material should be considered whether it will cause harm to the human body. The protection function of polarized sunglasses is to prevent ultraviolet rays and avoid glare. In addition to basic functions such as filtering glare, most polarized sports sunglasses frames are designed with veneer arcs. Fourth, the identification of the quality of polarized sunglasses. Generally, regular eyeglass shops will have instruments to detect the ability of sunglasses to resist ultraviolet rays. Through the instrument detection, you can know whether the glasses in your hand meet the standard. In addition, a simple way to check the quality of sunglasses is: you can use the UV light emitted by the currency detector or the currency detector to observe the UV logo pattern on the RMB through the sunglasses. If the sunglasses are of poor quality and have no UV blocking, they can still be clear If you see the UV logo on the Renminbi, you can’t see it if the quality is good. Fifth, choose the polarized sunglasses to look real and natural. The color selection of polarized sunglasses 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 preferably gray, brown, and green, because the lenses of these colors absorb infrared and ultraviolet rays better, which can improve the visual contrast and clarity, especially when driving sunglasses to ensure driving safety. It is particularly effective when worn under severe air pollution or foggy conditions. Related Reading: Polarized Sunglasses

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