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  •     24.02.16 10:53


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The Introduction of Sunglasses

The Cheap Oakley Sunglasses are a prevent sunlight strongly stimulate caused by the human eye injuries, eye care supplies, with the improvement of people's material and cultural level, the sunglasses can be as beauty or special jewelry to reflect the personal style. The sun's rays reach the earth's surface contains UV, the cornea and lens of the human eye is most vulnerable to UV damage eye tissues, "cataract" is closely related eye diseases. Due to environmental damage to the ozone layer, as well as people's summer outdoor activities increase UV damage to the human eye can not be ignored. Wearing sunglasses is to protect the eye from UV damage better way, but pay special attention to the choice of sunglasses. In accordance with the provisions of the international standards, the sunglasses are classified as areas of personal eye protection supplies, sunglasses wear in the summer, the main function is to block the sun glare. However, international standards again Cheap Oakley Active Sunglasses subdivided into "fashion mirror" and "general use with a mirror. Standard quality requirements of the fashion mirror is relatively low. "Fashion Mirror" is the style, the wearer focus on the decorative rather than protective function. The standard of "general purpose mirror" quality requirements are more strict, which include requirements for UV protection, as well as refraction and prism of the indicators. Basic functions: a pair of sunglasses looks very simple two color glass or plastic sheet, which is a plastic or metal frame. What could be more simple? In fact, the two glass lenses can produce a lot of difference when you use sunglasses, these differences will have a great impact on your In this article you will understand the difference does exist between a variety of sunglasses. A good pair of sunglasses must have the following four functions: to prevent the ultraviolet radiation in sunlight outside can damage the cornea and the retina, high-quality sunglasses can completely eliminate the ultraviolet radiation. Prevent the irradiation of light, when the eye receives too much light, it will naturally shrink the iris. Once the iris contraction to limit state, then people need to squint. If the light is still too much, such as snow reflected sunlight will be on the retinal damage. Quality sunglasses can filter out into eyes light up to 97% in order to avoid injury. Irradiation to prevent glare, some surface, such as the water, can reflect a lot of light, produced highlights disrupt the line of sight or hidden objects. High-quality Cheap Oakley Dispatch Sunglasses with polarized technology to completely eliminate such a glare polarizer technology, we will introduce later. Eliminate specific frequencies of light, the light of certain frequencies can blur the line of sight, and some other frequencies of light can enhance the contrast. Sunglasses to choose the correct color, make it be more effective in certain circumstances. If the sunglasses do not provide UV protection, it takes you more exposure to ultraviolet radiation. Cheap sunglasses filter out part of the light, cause your iris to open to receive more light. This also would allow more ultraviolet radiation into the increases the damage of ultraviolet rays on the retina. Between a variety of sunglasses, there is a difference. For a particular use of the environment, the selection of suitable, high-quality sunglasses will provide you with maximum protection.

26.7.12 08:54


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