• Durable material with excellent light transmission ranging from 200nm to 5µm.
• Available in two varieties: c-cut, which eliminates birefringent characteristics, and random cut, which may display birefringence. For imaging applications,c-cut is highly recommended.
• Random cut sapphire windows come in sizes from 5mm to 100mm in diameter.
• C-cut sapphire windows are offered in diameters ranging from 10mm to 50mm.
• All stock windows are provided without any coatings.

custom Sapphire Windows

Sapphire windows serve as exceptional protective barriers and are frequently utilized in viewports due to their remarkable durability and high light transmission capabilities. They are particularly suited for deep-sea applications, where they can endure notable pressure.

Knight Optical specializes in custom sapphire windows tailored to meet specific customer requirements. We can produce large diameters exceeding 300mm, and we offer various coatings to enhance performance, including anti-reflective (AR) and hydrophobic options.

When requesting sapphire windows, it is crucial to specify c-cut if the removal of birefringence is necessary; otherwise, our default offering will be random cut material.