Tuesday, September 10, 2013

high refractive index lens provides 100%

Use sunglasses lens is provided with proper eye protection is very important. With the glass manufacturing technology, the use of different types of lens of glasses. The different needs of each type of food and. You have to understand the glass lenses are available, your purpose.
Lens made of plastic or glass. Plastic lens light weight plastic materials, with different colors of your choice of color. They stop 80%, so as to provide good protection, ultraviolet radiation from the sun. Glass lenses are more prone to scratches, but they have excellent optical quality.
Polycarbonate lenses sunglasses are widely used in these days. They provide 100% sun blocking. They are very light, that they do not easily damaged. Polycarbonate lenses perfect children sports glasses and sunglasses, because they are scratch.
High refractive index plastic material of high refractive index lens. They are widely used for cosmetic purposes, because they are very thin. Polycarbonate lenses, protection of high refractive index lens provides 100%, harmful rays from the sun. Anti reflective coating surface reflection high refractive index lens, because of the increase in the index must increase the lens.
Aspheric lens is the most suitable for people who need to wear prescription glasses high. In this type of lens is a traditional lens dispersion lens compared are not restricted to be empty. Therefore, they provide a very clear vision, but also give you a fashionable appearance. Glasses with light weight, non spherical lens of high refractive index material.
Photochromic lenses property to control the amount of light entering the eye, regardless of the situation outside. When you choose to alternate between indoor and outdoor, you have these lens, in order to reduce the strain of the pupil of the eye.

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