Material: | Sapphire Crystal, Sapphire | Usage: | Optical |
---|---|---|---|
Structure: | Plano | Shape: | Customized |
Application: | Optical Lens | Surface Quality: | 40/20 |
High Light: | domed watch glass,domed crystal glass |
Customized Shape Domed Sapphire Glass With Anti - Reflective Coatings
Product Description
Property |
Specification |
Thickness |
0.5-50mm |
Size tolerance |
0.02mm |
Edge Finish |
Ground and beveled |
Surface Quality |
40-20 scratch-dig |
Surface Flatness |
λ/4 @ 633 nm |
Parallelism |
≤3 arc min (≤0.9 mrad) |
Clear Aperture |
>80% of central diameter |
Hardness (Knoop) |
1370 kg/mm2 |
Young's modulus |
3.4 x 1011 N m-2 |
Thermal Limit |
22 W m-1 K-1 |
Thermal expansion coefficient |
8.4 x 10-6 K-1 |