Silver Sapphire Windows Optics Crysmit

We are engaged in exporting and producing of Sapphire Windows Optics Crysmit to our patrons. 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 1000 A C as well as to HF below 300 A 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).

Material
Material:Sapphire
Typical Diameter (I mm):8.0, 10.0, 12.7, 15.0, 20.0, 25.4, 30.0, 50.8
Typical Thickness (mm):1.0, 2.0, 3.0, 4.0, 6.35
Diameter Tolerance (mm):+0.0/-0.2 (General), +0.0/-0.05 (High Precision)
Thickness Tolerance (mm):A 0.2 (General), A 0.05 (High Precision)
Clear Aperture:>80% (Small Size), >90% (Large Size)
Parallelism:3 min. (General), 10 sec. (High Precision)
Surface Quality:80/50 (General), 20/10 (High Precision)
Flatness (per 25mm@633nm):I (General), I /4 (High Precision)
Bevel (face width x 45A ):<0.25mm
Coating:Uncoated, AR, HR, PR Coating, etc.