![dome2](http://www.chinamicroscope.com/wp-content/uploads/2021/03/dome2.jpg)
Hyperhemisphere sapphire dome
![missile sapphire dome](http://www.chinamicroscope.com/wp-content/uploads/2021/03/DOME3.jpg)
Eyes of the missile
Windows of submarine
Aspheric Hyperhemisphere Kerf domes
Sapphire or other materials dome
Item | Radius of curvature(SR) | Caliber(D) | Wall thickness(T) | Dome height(H) |
Dimension range | 10 ~ ∞ | φ20 ~φ500 | ≥ 1 | ≤R2 |
![dome5 dome5](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/dome5.jpg?time=1722042221)
![](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/missile1.png?time=1722042221)
Al₂O₃
Crystal Structure
Hexagonal System
Melting point:2045°C
Coefficient of expansion:Parallel optical axis C-axis:6.7×10-6
Specific heat:0.18Cal/gm° K(25°C)
Density:3.98-4.1g/cm3
Hardness:Moh’s Hardness: 9
Micro Hardness (Hv)≧1700Kg/mm2
Coefficient of expansion:Parallel optical axis C-axis:6.7×10-6
Specific heat:0.18Cal/gm° K(25°C)
Density:3.98-4.1g/cm3
Hardness:Moh’s Hardness: 9
Micro Hardness (Hv)≧1700Kg/mm2
![missile3 missile3](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/missile3.png?time=1722042221)
Microscopes
![ds1 ds1](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds1.jpg?time=1722042221)
![ds2 ds2](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds2.jpg?time=1722042221)
![ds3 ds3](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds3.jpg?time=1722042221)
![ds4 ds4](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds4.jpg?time=1722042221)
![ds5 ds5](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds5.jpg?time=1722042221)
![ds6 ds6](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds6.jpg?time=1722042221)
![ds7 ds7](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds7.jpg?time=1722042221)
![ds8 ds8](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds8.jpg?time=1722042221)
![ds9 ds9](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds9.jpg?time=1722042221)
![ds10 ds10](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds10.jpg?time=1722042221)
![ds11 ds11](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds11.jpg?time=1722042221)
![ds12 ds12](https://mgv7d6.n3cdn1.secureserver.net/wp-content/uploads/2021/03/ds12.jpg?time=1722042221)