GoldDragonOptics. Supply kinds of infrared windows, UV fused silica windows, CaF2 windows, ZnSe windows, Si windows,Sapphire windows, etc.
Material: flint glass, UV fused silica, infrared fuses silica, CaF2, Ge, ZnSe, Si,Sapphire etc.
Diameter: 4mm-- 100mm
Parallelism: lambda/10
Surface quality: 40/20
Clear Aperture: 90%
Coating: custom design
Besides, there are a large volume of stock optical components in various shapes and sizes to facilitate quick deliveries.