Introduction to lens material of sunglasses:

Introduction to lens material of sunglasses:

1. Glass material: the main raw material of glass lens is optical glass.It has excellent optical performance and is more difficult to scratch than other materials, but the glass is fragile and heavy in material.

2.CR39 resin: at the end of world war ii, American PPG industries developed CR93 resin lens material. Its abell value was up to 58

Organic solution.As a result, more and more people are wearing CR93 lenses.Due to its advantages in optics and other properties, CR93 lens is still the most popular lens material in the global market today.

3.TR90 nylon: high elasticity.Excellent optical quality was invented to protect the eye.In addition to the professional outdoor, it is quickly promoted in many special industries, such as the military and ginger tea as well as the anti-target range.

PC polycarbonate: PC lens is also called space piece universe piece, the quality is lighter, but not wear-resistant, abell value is lower, and not acid-resistant alkali, can not be combined with the plate frame.

4.TAC:TAC lens is a kind of lens composed of multiple layers of materials, which is often made into polarized lens. It is also the most popular polarized lens in the market.It is composed of the middle polarizing layer, two layers of ultraviolet filter layer, square broken layer and wear resistant layer seven layers, can have

Effectively eliminates glare from scattered and reflected light.