Glass lenses

The main material is optical glass, which has better scratch resistance, the lens is not easy to scratch, and the refractive index is higher. However, the lens of this material has poor drop resistance and is easy to break. Safety is a problem worth considering. In addition, the weight is relatively heavy, and it is burdensome to wear on the bridge of the nose.

Resin lenses

High light transmittance, more clear and real viewing, no chromatic aberration; strong chemical resistance, solvents and chemicals used in general households will not cause damage to the lens; better anti-fog performance, resin lenses use neutral household detergents After wiping, it can play a good anti-fog effect; the reflective effect is lower than that of the glass sheet, and there will be no dazzling phenomenon; the mirror surface is easy to increase the film layer, and has various functions such as radiation protection, wear resistance, oil resistance, and anti-glare.

However, the surface of the lens is easy to be scratched. After scratching, it not only affects the aesthetics of the lens, but also affects the correction of vision by the lens. At the same time, the resin lens is easy to have poor corrosion resistance and high temperature resistance, and is easy to deform. However, in recent years, with the continuous improvement of production and technology, these shortcomings have been gradually optimized!