Specifications

SiO2 for optic coating material
99.99%

Specifications

purity:99.99
density:2.20g/cm3
refractive index :1.46(0.05u)
transimssion band:0.20-9(um)
vaporization point:1600-1700

Silicon dioxide optical coating material is also an essential material for optical components production such as optical lenses, mainly used under the more solid film requirement circumstances. It is widely used in optical filter lens production due to its small stress and easy filming. Especially in recent years, with the rapid development of optical communications, hundreds of layers of filter membrane (dense wavelength division multiplexing devices) are required, and there is no other material which can replace silicon dioxide coating system. Besides, it is applied in ultra large scale integrated circuits in large quantity due to its also good electrical insulation.

Because of its high hardness, it is also widely used in surface protection.

Our silicon dioxide optical coating material is made of high purity silicon dioxide powder as raw material and adds appropriate useful elements to effectively control hazardous substances in silicon dioxide. It is melted under a temperature of above 2000 °C and crushed after precise annealing.

With a very high success rate and stable coating filming rate, Japan, it is cutting-edge products specified by optical enterprises in Japan and Germany, mainly used in various field including digital cameras, projectors, photocopiers and various microscopes, advanced telescope lenses, prisms, and various optical test equipment, optical communication equipment filter lens, etc.