Frequently Asked Questions

Sapphire windows are used for precision imaging optics, polarization sensitive optics, near-ultraviolet (UV) wavelength optics, reticles, and refractometer windows.

The crystallographic orientation of these sapphire windows is c-Plane.

The maximum parallelism of these sapphire windows is 10 arc seconds.

The maximum transmitted wavefront error of these sapphire windows is 1/4 wave P-V @ 633 nanometers.

The surface quality of these sapphire windows is 20-10 per MIL-PRF-13830.

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