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 sunglass near me tips.
When we choose sunglasses, we must pay attention to the logo, the 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, gray filter effect is good; 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, which can improve visual contrast and clarity, especially when worn in heavy air pollution or fog. The color of the sun lens is light gray, brown or light smoke, followed by green, amber, blue, etc., and red is only used for sunbathing or snow.
Try it on. When wearing sunglasses and experiencing symptoms such as dizziness, nausea, and blinding, take them off immediately. Take the sunglasses 45cm away from the eyes, observe the vertical and horizontal lines around the glasses, such as window frames or door frames, etc., move the glasses up and down and back, if the straight line is distorted or wobble, 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 has glass and resin, and the high-quality solar lens should use polarized lenses. It is made of a synthetic resin that is as light and precise as a contact lens. It is made of seven thin layers, the outermost two of which are super-hard wear 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 of sunglasses.
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 your daily careful maintenance, with soft detergent cleaning lenses, not only in the lens, but also pay attention to temples, nose brackets and other easy to pile up grease, broken hair places. If it is stained with dust, clean it and then wipe it with a soft cloth. Remember, never scrub with hot water or put it in a damp place.
