Ge Windows
Germanium window has the advantages of high infrared refractive index, wide infrared transmission band, small absorption coefficient and low dispersion. Which is suitable for military and thermal imager, infrared radar and other infrared optical devices.

Material:                           Ge

Diameter Tolerance:         +0.0/-0.02mm

Thickness Tolerance:        ± 0.01mm

Surface Accuracy:            λ/4 @632.8nm

Surface Quality:                40-20

Clear Aperture:                 > 90%

Bevel:                              0.2mm×45°

Coating:                          user-defined