Summer strikes, are you still struggling with the classification of sunglasses?

u003cbru003ePeople usually need to adjust the pupil size to adjust the luminous flux in the sun. When the light intensity exceeds the adjustment ability of the human eye, it will cause damage to the human eye. Therefore, in outdoor activities, many people use sun-shading glasses to block the sun to reduce fatigue caused by eye adjustment or damage caused by strong light stimulation. A little and a half has passed in 2018, and the summer is also coming fiercely. Are you still wondering how to choose sunglasses? Why don't you follow along to see which categories are available! Recommended reading: Are your sunglasses really useful? 1. Anti-reflective protective lens This kind of lens is coated with a thin layer of magnesium fluoride on the surface to prevent the reflection of strong light, allowing you to see things more clearly and not interfered by strong light. To check whether your sunglasses really use anti-reflective protective lenses, you can point the glasses at the light source. If you see purple or green reflections, it means that the lenses are indeed coated with anti-reflective protective film.　　2. Colored lenses are also called 'dyed lenses'. During the lens manufacturing process, some chemicals are added to make the lenses appear colorful to absorb light of specific wavelengths. This is the most commonly used lens type for sunglasses. 3. Painted lenses. The effect of this kind of lens is the same as that of colored lenses. The only way to make it is different. It is to paint the color on the surface of the lens. The most well-known is the 'gradient painted lensThe deepest, and then gradually lighter down. Generally, sunglasses with prescriptions are painted with lenses. 4. Polarized lenses are called polarized lenses by adding vertical special coatings to the lenses in order to filter the dazzling rays of the sun in equal directions on the water, land or snow. Most suitable for outdoor sports, such as marine activities, skiing or fishing.　5. Color-changing lenses are also called 'photosensitive lenses'. Because silver halide chemicals are added to the lenses, the originally transparent and colorless lenses will become colored lenses for protection when exposed to strong light, which is suitable for indoor and outdoor use. 6. clip clip is a polarized sunglasses specially designed for nearsighted people. It adopts polarized lens technology, which greatly improves the visual resolution. At the same time, the lens is specially reinforced with a film, which is effective in wear resistance, scratch resistance and impact resistance. . It is especially suitable for outdoor sports such as driving, outdoor and fishing. No matter which style of sunglasses, it is our best partner for travel and fun in summer. Come to the glasses to choose a pair of sunglasses that you like, and have fun with friends! Related reading: Sunglasses trendy sunglasses clip

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