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Sapphire PROTECTIVE WINDOW (protective WINDOW) is a SPECIAL WINDOW which is processed by using the physical and chemical properties of sapphire and used to protect the seal of internal instrument or container under specific environment (high temperature environment, pressure environment, corrosion environment, etc.), so as to effectively isolate the environment and observers.
According to the different use environment, sapphire protective window can be divided into the following categories:
Pressure protection window
High temperature protection window
Deep water protection window
Chemical corrosion protection window
Sapphire protective window is commonly used in underwater exploration, high temperature scene, oilfield exploration, pressure vessel, chemical site and high power laser operation protection.
Item | Index | Remark |
Size | Diameter(or maximum diagonal) within 300mm | |
Thickness | 5-300mm | |
Pressure range | 1-120MPa | |
Temperature tolerance range | <1600℃ | At high temperature, the physical properties of sapphire will decrease |
Finish | 80/50 60/40 40/20 | |
Flatness | PV:RMS≤1/30λ@100mm | |
Coatting | Customer designated | |
Package | Tray packing or dust-free vacuum packing | |
Shape | Customer designated | |
Maximum Pressure | 120MPa | |
Max laser power | 20KW | |
Coatting | Custom |