... , substrates, oriented substrates to GaN,GaAs. And other, Sapphire possesses nice light transmission in 0.20 ~ 5.50um wave ... transmission is hardly influenced by temperature, so the optical components made of sapphire are fully applied to military infrared equipment, ... .Center Deviation, 0.01mm7.Orientation C, A, RMaterial:Synthetic sapphire/ruby single crystal α-Al2O3 (α-Al2O3≥99.99%), natural agate, ...