Sapphire Windows

Sapphire window retains its high strength at high temperatures, has good thermal properties and excellent transparency.
It is chemically resistant to common acids and alkali at temperatures up to 1000 °C as well as to HF below 300 °C . These
properties encourage its wide use in hostile environments where optical transmission in the range from the vacuum
ultraviolet to the near infrared is required.


Material: Anisotropic synthetic sapphire crystal (AL2O3)
Orientation ------------------------------------Random
Diameter Tolerance: --------------------- +0.0, -0.1mm
Thickness Tolerance: -------------------- ±0.1mm
Clear Aperture: ------------------------------>85%
Parallelism: -----------------------------------3 arc minute
Surface Quality: ----------------------------60-40 scratch and dig
Wavefront Distortion: -------------------- λ/4per 25mm @633mm
Bevel: -----------------------------------------Protective  (<0.2mm x 45° )
Coating: -------------------------------------- Optional
Note for Sapphire Window:
(1). Custom-made Sapphire windows at any size are available.
Besides round, Sapphire windows at shape of quadrate, triangular, or other polygonal are available
(2). Other thickness from 0.5mm to 50.0 mm is available upon request.
(3). Better bevel is available upon request.
(4). Windows with Anti-Reflective(AR)