Glass lenses

The main raw material for glass lenses is optical glass. Excellent optical properties, not easily scratched, high refractive index. Glass lenses have good light transmittance and mechanical and chemical properties, with a constant refractive index and stable physical and chemical properties.

Introduction:

Glass lenses have the characteristic of being more scratch resistant than lenses made of other materials, but they are relatively heavy in weight and have a relatively high refractive index: ordinary lenses have a refractive index of 1.523, ultra-thin lenses have a refractive index of 1.72 or higher, and the highest can reach 2.0.

Main raw materials:

The main raw material for glass lenses is optical glass. Its refractive index is higher than that of resin lenses, so glass lenses are thinner than resin lenses at the same degree. Glass lenses have good light transmittance and mechanical and chemical properties, with a constant refractive index and stable physical and chemical properties. Colorless lenses are called optical white lenses (white lenses), while pink lenses in colored lenses are called Crookese lenses (red lenses). Crookese lenses can absorb ultraviolet light and have a slight absorption effect on strong light.

characteristic:

Glass sheets have superior optical properties, are not easily scratched, and have a high refractive index. The higher the refractive index, the thinner the lens. But glass sheets are fragile and the material is heavy.