Optical Grade sapphire windows
Optical Grade sapphire windows
Sapphire crystal retains its high strength at high temperatures, has good thermal properties and excellent transparency. Sapphire is aniso- tropic hexagonal crystal. The single crystal Sapphire is highly trusted material with its excellent chemical stability, mechanical property, and light transmission.
Capability:
Attribute | Commercial | High Precision |
Material : | Optical Grade Single Crystal Sapphire | |
Orientation : | Random, C-axis , A-plane , R-plane and M-plane | |
Typical Diameterφ(mm) | 4, 8, 12.7, 25.4, 30, 38, 50, 60 | |
Typical Thickness(mm) | 0.5, 1, 2, 3, 5, 10, 15, 20 | |
Diameter Tolerance | ± 0.1mm | ± 0.02mm |
Thickness Tolerance | ± 0.1mm | ± 0.02mm |
Surface Quality | 60-40 scratch and dig | 20-10 scratch and dig |
Parallelism | ＜3 arc minutes | ＜5 arc second |
Bevel : | ＜0.25mm×45° | ＜0.25mm×45° |
Note:Other sizes and coatings are available upon request.