|Product Name:||Sapphire Glass||Material:||Artificial Sapphire|
|Hardness:||H9/HV1800-2200||Plating:||According To Customer Needs|
sapphire glass watch face,
synthetic sapphire glass
Clear Transparent Sapphire Dial Window For Watch 85% - 99% Transmissivity
Kyropoulos method-----This growth sapphire has good optical property,so it for application such as:
Sapphire Optcial window
Sapphire potective window for carema
Precision laser optics
Sapphire glass has tensile strength and can withstand high temperatures.Which makes this material ideal for use in hostile environments with its unique combination of excellent physical, chemical, and optical properties retaining its high strength at elevated temperatures. Resists attack from acids and alkali. Available as windows, lenses, prisms, blanks and tubing, all custom manufactured.
We can provide flat/single domed/double domed and other shape watch glass,Welcome to email us!
About sapphire glass
SAPPHIRE CRYSTAL (sapphire glass) generally refers to synthetic sapphire, generally used in the manufacture of the watch glass.
It is resistant to wear with tungsten titanium alloys and high-tech ceramics. but sapphire materials can wear resistance and
withstand the strong impact, and some of the same or higher hardness of the material (e.g., millstone, sandpaper, nail, granite,
concrete wall, and floor, etc.) so sapphire glass are not likely to scratch the surface of these materials.
Synthetic Sapphire Window Technique Index :
|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 mm-2|
|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|