09 Aug 2011 Creator Optics can made Hi-precision Germanium windows with far IR anti-reflection coating from 4um to 12um.
Diameter: Dia3mm to 300mm, customize available
Thickness: 0.2mm to 50mm , customize available
Diameter Tolerance: +/-0.05mm, +/-0.1mm
Thickness Tolerance: +/-0.025mm, +/- 0.05mm
Edge: fine ground
Chamfer/Bevel: 0.25*45°
Flatness: 1/8 lambda per inch @633nm, 1/2 lambda per inch @633nm
Parallelism: 30 arc sec
Surface Qulitity 20/10, 60/40
Clear Aperture >85%
Coating: AR/AR coating at 3-5 and 8-12 microns, customize available
Material: IR-Grade Germanium monocrystal (Ge) *
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