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Ultraviolet Light Is Not Equal To Strong Glare
- Oct 02, 2018 -
Whether it's tens of dollars of sunglasses or hundreds of dollars of sunglasses, it has the function of dimming the outside light. But remember, darkening the light doesn't mean blocking UV rays. Some sunglasses can also reduce the glare, but not the UV rays. Ultraviolet light refers to the sun's rays with a wavelength between 200 nm and 380 nm. Therefore, any lens that can block light of 380 nm or higher can effectively prevent ultraviolet rays. At present, one of the more common indicators is "UV400". If the regular brand has the "UV400" logo, then this sunglasses has no problem with UV protection.