1. MgF2

Material characteristics: Colorless tetragonal crystal powder with high purity. The optical coating can be prepared by using it to increase the transmittance without breaking point.

2. SiO2

Material characteristics: colorless and transparent crystal, high melting point, high hardness, good chemical stability. The purity is high, and high-quality SiO2 coating is prepared by using it, and the evaporation state is good, and there is no collapse point. According to the requirements of use, it can be divided into ultraviolet, infrared and visible light.

3. ZrO2

Material characteristics White heavy crystalline state, high refractive index and high temperature resistance, stable chemical properties, high purity, use it to prepare high-quality zirconia coating without collapse.