Knight Optical’s Sapphire Windows for High-Pressure Underwater Cameras
28 Sep 2022
Knight Optical offer a range of Stock Sapphire Windows, for use within High-Pressure Underwater
Sapphire (Al2O3) is one of the hardest minerals and optical materials available for use from ultraviolet (UV) up to 5µm, making it ideal as a protective window for camera systems.
Sapphire is grown by various methods from seed samples. It can be polished to a high standard, but as it is the second hardest mineral on earth, it must be subject to high forces to polish. Sapphire is inert and resistant to attack from most processing environments, such as hydrofluoric acid. Sapphire has a melting point over 2000°C, and with a high thermal conductivity it’s suitable for use in harsh environments.
The benefit of using Sapphire over other materials for high-pressure underwater cameras is that it can be offered up to 65% thinner than Fused Silica Windows and is significantly more scratch-resistant.
Material: Sapphire (Al2O3) Random and C-Cut Grades
All our Sapphire Windows are fully inspected on their quality in our ISO 9001-certified, state-of-the-art Metrology laboratory, using our FIBSA, and Trioptic Prism Master. This allows us to work to the highest QA standards and meet the tolerance specifications on these precision components.
Contact our technical sales team to discover how Knight Optical’s high-quality Sapphire Windows and superior service can improve your instrumentation and supply chain experience.
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