oakleysale

Judge the merits of the chanel sunglasses sale   from two aspects of the quality and aesthetic standard. Aesthetics with personal factors, quality is a certain standard. The quality of the sunglasses mainly refers to the quality of the lens. The world of the general standard for the food and medicine and health inspection bureau (F d. A) standard.
 
According to F d. A standard, lens in security light transmittance, at the same time to filter out more than 90% of the ultraviolet ray in sunshine, discount chanel sunglasses  lens should stick "UV-100 PROTCT10N" label, when 100% minus UV, should stick "UV-400 PROTCT10N" tag, so check the label on the lens is quite important UV.
 
Second, cheap chanel sunglasses  lens can't have optical lenses to some "degree". Generally if d more than 15%, wear will have the feeling of dizzy. Three, lens must have higher strength and through the impact resistance test. In general, pieces of plastic (propionic acid cellulose acetate or), resin piece, the strength of the glass from small to large.