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germanium circle ir blank
germanium circle ir blank

Germanium Circle IR Blank

Germanium circle IR blanks are high-purity germanium discs, primarily used as substrates for fabricating optical components in infrared systems. They are integral in producing lenses, windows, and other elements essential for thermal imaging, night vision equipment, and spectroscopy due to germanium’s excellent transparency and refractive properties in the infrared spectrum.

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Specifications

The Specifications of Germanium Circle IR Blank

MaterialGe
SpecificationCustomized
Diameter Tolerance≤0.03mm
Curvature Radius△Sag<0.005
Center Thickness Tolerance≤0.025mm
Edge Thickness≤0.03mm
Surface Quality40/20
Transmittance1.AR ≥97% 2.DLC+AR≥90%
SurfaceN<2 △N<1
Flatness<10μm
Decentration1.Window<30′2.Lens<1.5′


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