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Sunglasses Functional Classification by brownav brownav
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Sunglasses Functional Classification |
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Sunglasses use different. If you use a light shade of sunglasses for use, the wearer will not be able to get good shading effects, such as prolonged outdoor activities in the sun strong; the wearer will be stronger because of the light stimulus fatigue. Light-colored sunglasses generally decorative role, or the sun is not strong indoors. On the contrary, in the room or do not need a place to wear strong sun block sun mirror, because the pupil is enlarged to produce excessive discomfort, fatigue and so on. In the sun mirror, the transmission is not suitable for small products or drivers wearing rider because the rider or motorist pedestrian traveling faster than the speed, transmission ratio is too low will affect their ability to respond.
When sunglasses meet this requirement, it reached the most basic protection requirements that block the light at the same time blocking the corresponding amount of ultraviolet light, wear sunglasses at least not to increase the acceptance of the amount of UV light. Meet the above requirements Tiffany Outlet sunglasses, is the real meaning of a protective function against UV sunglasses. UV sunglasses performance is an important indicator of whether a pair of sunglasses with UV functions, we can not distinguish with the naked eye. Our current product standards for UV performance only basic requirements, namely the wearer harmless. Protection mainly by production companies to make explicit commitments, but not all products have anti-UV sunglasses function as a consumer to identify whether the product has anti-ultraviolet function, only the factory express commitment to the product as the only reference.
Simulate observed through the lens yellow and green traffic signals and average daylight observation through the lens, the standard provides that: color coordinates corresponding chromaticity diagram should be located within the region corresponding. If the measured value exceeds the specified color coordinate color limit region, it will lead to confusion various traffic signals is one of the hidden dangers of accidents. If colored traffic signal transmittance is too low, reduces the ability to identify the signal, but also one of the hidden dangers of accidents. For EXPRESS has a protective function, it must be able to withstand impact without chipping the ball fall freely. This indicator is a function with protective glasses minimum requirements. If the lens has a protective function explicitly, but passes this standard, it is likely to mislead consumers from unsafe situations considered safe wearing glasses, if an accident occurs, it will directly harm consumers' eyes.
Susceptible to improper eye wear sunglasses, cloudy, indoors low light situations there is no need to wear Cheap Oakleys sunglasses. Some people regardless of settings, regardless of sunlight intensity, even in the twilight, in the evening as well as in movies, television, also wearing sunglasses, which will inevitably increase the burden on the eyes, adjust, causing muscle tension and fatigue, vision loss, visual objects blurred, severe dizziness and other symptoms. For the visual system is not perfect babies, children should not wear sunglasses. In addition to glass sunglasses, others wear sunglasses lens material is not high, the user should always pay attention to the surface of sunglasses case, when the wear of clarity, it should be replaced.
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