Recently, Hebei Province Product quality supervision and Inspection Institute for consumers to buy sunglasses in the summer of the actual situation, the organization of experts combined with daily inspection and testing data, released the purchase of sunglasses near me now tips.
When choosing sunglasses, be sure to pay attention to the logo. Regular sunglasses should have the name, color, diameter, quality level, manufacturer name and trademark. At the same time, pay attention to the logo of the product, sunglasses should be UV(English Ultraviolet Rays abbreviation, that is, ultraviolet light) logo, anti-UV factor of more than 400 lenses, only have the role of protecting the eyes.
Look at the lens color. Black, brown, and gray filters work well. The gray lens can absorb evenly to any color spectrum, and the scene seen after wearing the lens will only be darkened without obvious color difference; Brown lenses can filter out a lot of blue light, can improve visual contrast and clarity, especially when worn in heavy air pollution or foggy conditions. The color of sunglasses lenses is light gray, brown or light smoke, followed by green, amber, blue, etc., and red is only used as a sunbathing or snow.
Try it on. When wearing sunglasses and experiencing symptoms such as dizziness, nausea, and blinding, quickly remove them. You can hold the sunglasses 45 cm away from the eyes, observe the vertical and horizontal lines around the glasses, such as the window frame or door frame, and move the glasses up and down and back. If the straight line is distorted or wobbled, it indicates that the lens is deformed and should not be purchased.
Lens material. The lens should be flat, the clarity should be high, the solar lens material is divided into glass and resin, and the high-quality solar lens should use polarized lenses. The polarized lens is made of a synthetic resin that is as light and precise as contact lenses. It is composed of seven thin layers, the outermost two of which are super-hard wear-resistant layers. The second and sixth layers are anti-crushing strengthening layers; The third and fifth layers are the ultraviolet filter layer, and the middle layer is the polarized filter layer. Polarized lenses can effectively filter the reflected light and harmful ultraviolet rays, and has the function of shatter-proof, anti-wear, etc., is the first choice for sunglasses lenses.
Daily maintenance. If you think that sunglasses are just ornaments, at most in the mirror box even if it is properly maintained, it is a big mistake, sunglasses also need daily careful maintenance. Clean the lens with a soft detergent, not only in the lens, but also pay attention to the temples, nose brackets and other places that are prone to accumulation of grease and broken hair. If it is stained with dust, clean it and wipe it with a soft cloth. Remember, never scrub your lenses with hot water or leave your sunglasses in a humid place.
