Lens coating can reflect high density light, reducing glare, thereby reducing the amount of visible light to reach the eye. To make lens coatings, in the vacuum chamber can add a thin layer of metal vapor on the lens surface. Coating colors include, silver, blue, red or orange-brown, the color just to make the most beautiful and stylish Fake Oakleys Frogskins Sunglasses Cheap for Sale glasses, not with eye protection functions. Use more chrome plated metal, but its wear resistance is less than a high-performance titanium or quartz dielectric coating. Lens coating will generally enhance the uniform color depth sunglasses. Photo chromic lenses, if you do not frequent corrective glasses and sunglasses, wearing color glasses is a compromise approach. In bright light, the photosensitive lenses automatically darken. Once walked outdoors, their color and automatically lighter.
Tinted lenses so you can identify the true color; common neutral color; generally apply; does not increase the contrast; suitable for playing golf, biking or running wear. Green enables you to identify the true color; common neutral color; generally apply; contrast is not strong in low-light conditions; under bright light conditions can reduce eyestrain. Brown is more suitable for use in the sun is not strong weather; may deepen the contrast; glare environment for sports such as skiing, fishing or sailing, etc. Yellow has low light conditions good depth perception and contrast; are standard ski glasses cloudy weather conditions; suitable target shooting when worn. With in low light situations good depth perception background with blue and green contrast strong; suitable for skiing.
Amber blocks blue light; in cloudy, foggy conditions can increase the brightness; see the color is yellow or orange; contrast strongly; minimize eye fatigue; suitable for athletes, pilots or skiers wear. Strong sunlight contains large amounts of ultraviolet and infrared, may damage the cornea of the eye, lens, and even the eyes, wearing a pair of sunglasses that can block or absorb part of the light, reducing eye irritation. Because we focus on the health of many people in the hot summer months when they go out, like to wear Tiffany and Co Heart Necklace Jewelry Outlet sunglasses to reduce the stimulation of the sun, some people also like to use it as decoration; many types of sunglasses should be selected according to different needs. Sunglasses mainly by the absorption of light itself, to achieve the purpose of reducing the intensity of sunlight. Adding different colored glass compound, made of different colors of sunglasses, they absorb wavelengths of light are not the same.
Visible light, in fine weather, to make the eyes feel comfortable, you should choose sunglasses can block visible light. Sunglasses can absorb visible light blue rays can prevent eye injuries. It is hard to watch Blue-ray, usually squint. Visual effects, sunglasses should be a clear, comfortable vision, not clamping head. But if sunglasses loose, would affect the visual comfort. Sunglasses, mask type can block or mask the edge sides of the ordinary frame, the top and bottom of ultraviolet light, but they may also increase the optical distortion. To test the visual effects, wearing Tiffany and Co Bracelet Jewelry Outlet sunglasses, then looked straight vertical edge or point. Head moves back and forth, eyes swept the lens. If you find a straight line appears curved, it means that the lens is flawed, the visual distortion.