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How to choose qualified sunglasses

by:Eugenia     2020-07-23
Facing the broad range of sunglasses, we must begin from what respect to choose and buy a pair of contentment? Just see the function is good? Small make up will tell you now, when the choose and buy in the shop, how to identify whether the sunglasses. Ms sunglasses factory YC9707 sunglasses C8 hawksbill/dazzle colour yellow how to choose qualified sunglasses? The first thing to understand the purpose of the sunglasses. Sunglasses can generally be divided into according to the use shading mirror, light color sunglasses and three types of special-purpose sunglasses. Sunshade lens shade mirror is used to keep out sunshine, to relieve his eyes to adjust the damage caused by fatigue or strong light stimulation. Light color sunglasses not resistance to sunlight as shading mirror, mainly decorative. Special-purpose sunglasses has a strong function of keep out sunshine, often used in the beach, skiing, mountain climbing and so on the energy of sunlight is strong in the wild. Second, observe whether lenses is uneven or bubble once the sunglasses lenses have uneven or bubbles appear, can cause dizziness when worn. Sunglasses will get 45 centimeters from the eye, through the glasses look around vertical line and horizontal line, such as frame window or door frame, move the glasses before and after the up and down, if found to have linear distort or swing, shows that the lens dioptre deformation, for the unqualified sunglasses lenses. Sunglasses factory YC9708 general sunglasses C7 black box silver leg/lens ash third, is to try to confirm the frame in accordance with their own requirements. The width of the sunglasses to match the width of the face, basic on both sides of the nose should be equal. If you have to resist the temples caused oppression, glasses legs at the top of the ear, should choose separately. Also, pay attention to see whether the sunglasses have anti UV ( Uv) Function. Wearing sunglasses in addition to reduce glare, make the eyes comfortable, another important goal is to prevent ultraviolet damage to the eyes, and whether the lens color and UV protection are two different things, even if the lens color deep, also won't be able to effectively prevent the UV. Therefore, consumers choose UV protection glasses, must choose UV resistant lenses are marked. In addition, different colors of sunglasses have different functions: 1, gray lenses, can absorb any equilibrium chromatographic, while watch the scenery will become dark, but do not have clear off color, can show the true feeling. Suitable for outdoor enjoy sightseeing, photography. 2, blue grey lens, color slightly deep, visible light absorption rate is higher. If the sun places particularly strong light, can consider wearing blue gray. 3. Mercury lens, mirror coating surface with high density, can absorb more reflect visible light, suitable for outdoor sports people for a long time. Want to know more color sunglasses relative function, see article sunglasses different color function complete version.
related: sun glasses sunglasses
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