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The classification of the lenses

by:Eugenia     2020-07-23
Lenses that roughly divided into: the kinds of antireflection protective lens, color lens, color lenses, polarized lenses and change color lenses etc. Five. Ms sunglasses factory YC9707 sunglasses C8 hawksbill/dazzle colour yellow 1. Antireflection protective lens: the lens is in the surface coated with a thin layer of magnesium fluoride, in order to prevent the strong light reflection, let you see things more clearly and without strong light interference. To test whether your glasses really using antireflection lenses, glasses can be on the light source, if you can see purple green reflection, then said lenses do have painted antireflection protective film. 2. Colored lenses: also called 'dyeing', is in the lens production process, add some chemicals, let the lens present color, to absorb certain wavelengths of light. This is the sun glasses often use lens type. 3. Color lens: the lens effect and color lenses is the same, only is made in different ways, it is the color painted on the surface of the lens, known as the world is 'gradually layer type the color of the lens', above the color is deep, and then gradually down. Is the general prescription sunglasses is more color way lenses. 4. Polarized lenses: in order to filter the sun shone on the water, land, or snow in the direction of equality of dazzling light, special coating on the lens in vertical, is called a polarized lens. Suitable for outdoor sports, For example: offshore activities, skiing and fishing) When use. 5. Color lenses, also some people called 'photographic lenses. Because chemicals in lenses to join silver halide, let originally colorless lens, meets the glare, becomes colored lenses, for protection, so it is suitable for indoor and outdoor use.
related: sun glasses sunglasses
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