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Germanium windows catalog

Welcome to our new germanium windows catalog. Custom shape germanium windows (round, square) and sizes, monocrystal and polycrystal germanium windows, BBAR coating for 8-12, 2.5-14 microns are available upon request. Please contact us for quotation, special prices on large diameter windows.

Cat# Dia, in Dia,mm TH, in TH, mm
GE-W-12.7-1 0.5 12.7 0.039 1.0
GE-W-12.7-2 0.5 12.7 0.079 2.0
GE-W-25.4-1 1 25.4 0.039 1.0
GE-W-25.4-2 1 25.4 0.079 2.0
GE-W-25.4-3 1 25.4 0.118 3.0
GE-W-25.4-4 1 25.4 0.157 4.0
GE-W-25.4-5 1 25.4 0.197 5.0
GE-W-25.4-6 1 25.4 0.236 6.0
GE-W-38.1-3 1.5 38.1 0.118 3.0
GE-W-38.1-4 1.5 38.1 0.157 4.0
GE-W-38.1-5 1.5 38.1 0.197 5.0
GE-W-38.1-6 1.5 38.1 0.236 6.0
GE-W-50.8-3 2 50.8 0.118 3.0
GE-W-50.8-4 2 50.8 0.157 4.0
GE-W-50.8-5 2 50.8 0.197 5.0
GE-W-50.8-6 2 50.8 0.236 6.0
GE-W-63.5-3 2.5 63.5 0.118 3.0
GE-W-63.5-6 2.5 63.5 0.236 6.0
GE-W-76.2-3 3.0 76.2 0.118 3.0
GE-W-76.2-6 3.0 76.2 0.236 6.0
Custom 100-200 mm diameter germanium windows are available upon request. Ask now.

Germanium windows standard specifications:
Diameter tolerance: +0/-0.1mm;
Thickness tolerance: +/-0.1mm;
Clear Aperture: 90%;
Parallelism: 3 arc min;
Flatness: 1/10 wave at 10.6 microns
Surface finish: S/D 40/20

See also: germanium lenses