Eyeglasses may be separated into 1, 2, 3, and 4 groups according to the gentle transmittance from the camera lens. In accordance with the regular, light transmittance of shades is divided into 4 degrees, the larger the level, the higher the shading amount. Which 4 types mainly match 3 kinds of sun glasses.fashion sunglasses wholesale
Course 1: Lighting transmittance Type 1 usually means light-undefinedtinted shades together with the lightest zoom lens shade, ideal for most daily living. Light-undefinedcolored sun glasses usually are not as good as sun-shading mirrors, however are abundant in hues, appropriate for use with various clothing, and also have a powerful decorative impact.
Levels 2 and Level 3: Light-weight transmittance levels 2 and light-weight transmittance stage 3 typically refer to sunshade mirrors. The lens of the sunshade looking glass is dark-colored in color and must just be employed if the sunlight is powerful, specifically in the summertime environment. Many people use sunshine-shading sunglasses to block the sun to minimize low energy brought on by vision changes or damage a result of strong gentle excitement.
Class 4: Light transmittance. Class 4 means special-undefinedpurpose shades. The zoom lens has the darkest color and is also only appropriate for skiing, wilderness, seaside and also other occasions.
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