1) About the functionality of anti-UV ID

A Deputy Ray Ban Outlet Sun mirror is has anti-purple outside of features, we cannot with eye distinguished, factory on products of express commitment is consumers purchase has protection features Sun mirror of only of reference, we can in some products of label and glasses positive see such as: "100% anti-purple outside", and "UV400", and "barrier all of UV", and "anti-purple outside", express identifies.

Ultraviolet refers to wavelengths in the 200nm~380nm of the Sun's rays, including three classes: UVA wavelength for the 315nm~380nm, UVB wavelength of 280nm~315nm, UVC to 200nm~280nm. Solar light reaching the Earth's surface (290nm~2000nm) ultraviolet radiation accounts for about 13%, of which UVA accounts for 97%,UVB 3%,UVC is close to 0. UV damage to human eyes the main decisions to UV radiation and time radiation wavelength, intensity and strength of human eye's own defense mechanisms, cornea and lens are the most commonly affected by UV damage eye tissue, solar dermatitis and corneal endothermic damage, Sun of cataract is related to most eye diseases.

In order to protect the health of the eye, you can choose with the function of UV lens Sunglasses made of, as far as possible below 380nm ultraviolet rays.

2) On safety marking

Has security performance of Cheap Ray Bans Sun mirror, its lenses used such as PC tablets, anti-impact of material produced, in label and manual Sang often logo Sang "has anti-impact performance", and "through United States FDA certification", and "meet Europe Supreme standard" wait, if products can reached identifies Sang of requirements, motorcycle hand, and driver, on security has special requirements of consumers is a is good of select.

'S commitment to the product on the label, consumers will learn to protect themselves, either save the label or description, or let business indicated on the invoice, in the event of disputes, passive should not lack of evidence.

3) To identify the intrinsic quality of the eyeglasses of basic skills

1) Lenses degrees should meet the requirements for flat lenses, and should not affect the optical defects of vision. Identification method for simple, put sunglasses on, through observation targets in the distance of the lens, such as window frame or door frame, then the glasses up and down back and forth, swing and the goal should not have wavy deformation.

2) Lens color is not partial, should enable the ambient color distortion, and object edge clearly has the ability to effectively identify different color lights. Lens shading options, depending on the activity you want depending on the place, for different light source and occasion, lens color affects the shading effects. To make Cheap Ray Ban Sunglasses can effectively block the summer glare, glasses of color because there is enough depth, bike or car, do not select lens color is too dark.