A thick, uncoated sapphire window can be used in various applications where extreme durability and optical clarity are required.
Sapphire is one of the hardest materials available, second only to diamond, making it highly resistant to scratching and abrasion. Its high melting point and excellent thermal conductivity also make it suitable for use in high-temperature environments.
Uncoated sapphire windows are often used in industrial, military, and scientific applications where optical clarity is crucial, such as in high-pressure and high-temperature chambers, sensor protection, and as viewing windows for infrared and UV applications.