UQG Optics

Sapphire Windows - Plates - Substrates
UQG custom made Sapphire windows are manufactured in a random or specified orientation. Our Sapphire windows are extremely hard and scratch resistant useful for their (UV) ultraviolet, (VIS) visible and (IR) infrared transmission.

The material has excellent thermal conduction and heat radiation, being resistant to common chemical acids and alkaline. Manufactured in a range of sizes and thicknesses it can withstand high pressures and suited for many applications when used as a window in harsh environments.

We supply small and production batches accommodating most optical and commercial finishes.

Specifications Sapphire datasheet view stock
Diameter: +0.00/-0.10mm
Surfaces: 60/40
Thickness: ± 0.10mm
Flatness: ≤ 5 Fringes
Edges: Fine Ground
Parallelism: ≤ 3 Arc mins


Custom Sizes & Options
Diameters: 2.50mm to 230mm
Squares/Rectangles: 1mm to 210mm
Thickness: 0.12 to 150mm
Surfaces: 80/50 to 60/40
Edges: Ground or polished
Diameter/Thickness: Tol. up to 0.05mm
Parallelism: Up to 1 minute
Flatness: Up to 2 Lambda per Ø25mm
Orientation: Up to ± 2°


Please send us your requirements or for further information please contact us.