Sell sapphire optical windows

*Single crystal sapphire possesses a unique combination of excellent optical, physical and chemical properties. The hardest of the oxide crystals, sapphire retains its high strength at high temperatures, has good thermal properties and excellent transparency. It is chemically resistant to common acids and alkali at temperatures up to ***0 °C as well as to HF below **0 °C . These properties encourage its wide use in hostile environments where optical transmission in the range from the vacuum ultraviolet to the near infrared is required. Sapphire is anisotropic hexagonal crystal. Its properties depend on crystallographic direction (relative to the optical C-axis).

*Specifications:
Material: Sapphire 
Dimension Tolerance: *0.0, *0.1mm
Thickness Tolerance: ± 0.1mm
Surface quality: *0/*0
Clear Aperture: >*5%
Flatness: λper *5mm
Parallelism: 3' 
Bevel: <0.*5mm X *5°
Coating: Upon requirement

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