Protection of Sunglasses

15/lug/2014 04:35:57 Danielbest Contatta l'autore

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Indoors or do not need to block the strong sunlight of place wearing sun glasses, because the pupil will enlarge and produce excessive discomfort, fatigue and so on. In the sun mirror, the transmission is not suitable for small products worn by the rider or car, because the rider or motorist traveling faster than the speed of pedestrians, the transmission ratio is too low will affect their ability to respond. When the sunglasses meet this requirement, it reached the most basic requirements of protection, that is also a barrier to block the glare of the corresponding amount of ultraviolet light, wear Tiffany and Co Key Necklace Jewelry Outlet sunglasses or at least not increase the amount of UV light to accept, wear sunglasses, will reduce the flux into the human eye, causing the wearer to increase pupil, under the same external conditions, if the appropriate amount of sunglasses can block UV light, the human eye will accept more than not wearing sunglasses when ultraviolet light.
Meet the above requirements sunglasses, is the true sense of the ultraviolet protection sunglasses features. UV performance is an important indicator of sunglasses, a pair of sunglasses with UV function if we can not distinguish with the naked eye. China's current product performance standards for UV only basic requirement that the wearer harmless. Protection mainly made explicit commitments by the manufacturer, but not all products have anti-UV Fake Oakleys Holbrook Sunglasses Cheap for Sale sunglasses function as a consumer to identify whether the product has anti-ultraviolet function, only the factory to express commitment to the product as the only reference. Analog viewed through the lens of yellow and green traffic signals and observed average daylight through the lens, the standard color coordinates corresponding provisions should be located within the region corresponding chromaticity diagram.
If the color coordinates measured value exceeds the limit specified in the color area, it will cause confusion various traffic signals is one of the risks of traffic accidents. If colored traffic signal transmittance is too low, reducing the ability to identify signals and one of the risks of traffic accidents. Requirements for signs, each pair of glasses should be marked Standards Code and the manufacturer's name and trademark execution. Category marked, available to consumers in the selection of proper sunglasses can choose according to purpose and place. The index is a minimum requirement for a protective function of glasses. If the lens has a protective function explicitly, but passes this standard, it is likely to mislead consumers from unsafe situations considered safe wearing a pair of Fake Oakleys Frogskins Sunglasses Cheap for Sale glasses, in case of accidents, will directly harm consumers' eyes.
Susceptible to improper eye wear sunglasses, cloudy, indoor light and so there is no need to wear dark sunglasses case. Some people, regardless of the occasion, regardless of sunlight intensity, even in the twilight, in the evening and watch a movie, also wearing sunglasses television, which will inevitably increase the burden of adjusting the eye, causing muscle tension and fatigue, vision loss, visual blurring, severe dizziness and other symptoms. For the development of the visual system is not perfect babies and children should not wear Cheap Ray Bans Wayfarer Sunglasses Outlet Sale 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, when worn affect clarity, should be replaced.

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