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Germanium Windows
IR Windows Germanium Windows

IR Windows Germanium Windows

Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8–12 um wavelength band.

  • product origin:

    China

  • shipping port:

    Fuzhou China

  • lead time:

    4 working weeks

  • payment:

    T/T Payment, Western Union
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  • description
Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8–12 um wavelength band.

Specifications

Parameters Commercial grade Precision grade
Substrate Material N Type <111>, Resistivity 5 - 40 ohmcm
Diameter Tolerance +0/-0.10mm
Thickness Tolerance ±0.10mm
Clear Aperture >Central 90% of diameter
Surface Quality 60-40 S/D 40-20 S/D
Parallelism 3~5 arc min 1 arc min
Surface Flatness 1λ per 25mm λ/4 per 25mm
Chamfer 0.15~0.35mm×45°
Coating Uncoated, DLC , AR


Note for Ge Window:


(1). Please specify the material and resistivity


Custom-made Ge windows at any size are available.
Besides round, shape of quadrate, triangular, or other polygonal are available.
(2). Thickness from 1.0mm to 80.0 mm is available upon request.
(3). Better bevel is available upon request.
(4)Ge Windows with Anti-Reflective(AR), High-Reflective(HR), DHL coating are available.
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