Glass

JGS1 Good transparency in the ultraviolet and visible light bands, free from bubbles and impurities, used as a material in the field of high-energy lasers, and can be used to make optical components such as lenses and prisms. JGS2 Containing a large number of small bubbles, commonly used for reflector substrates. JGS3 It has good transmittance in the infrared band, but contains many bubbles.  

BF33 is a type of borosilicate glass originating from the German company Schott. It is produced using micro float process .BF33 glass has a uniform texture, with a mirror like surface, surface smoothness, and good optical properties.

Sapphire is a single crystal of aluminum oxide, which is the second hardest material in nature, second only to diamonds. Sapphire has good transparency, high strength, collision resistance, wear resistance, corrosion resistance, high-temperature and high-pressure resistance, biocompatibility, and can be made into various shapes of objects. It is an ideal substrate material for making semiconductor optoelectronic devices.