The laser cavity filters produced by Beijing Zhong Cheng Quartz Glass are in high precision, with strict material selection, high efficiency and long service life, which are well praised by customers.

The ceramic reflector body is prepared with 99% Al₂O₃, and the body is fired at an appropriate temperature to retain the appropriate porosity and the appropriate strength of the body. The surface of the reflector is fully coated with high reflectivity ceramic glaze. The biggest advantage compared with the gold-plated reflector is that it has a very long service life and the reflection characteristic is diffuse reflection.

Its main features include: