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Germanium Windows for Thermal Core

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Germanium Windows for Thermal CoreHere at Knight Optical, Germanium material is ideal for your IR applications with its broad transmission range and opacity in the visible portion of the spectrum. Our Germanium windows are not only used in IR sensors; but also in thermal cores. Typically operating in the 2µm to 14µm spectral range; that covers the LWIR (8-12μm) and MWIR (3-5μm) thermal imaging wavelength range.

Our Germanium windows are available from stock, custom sizes and shapes with Anti-Reflection coatings on one or both sides, and/or with Hard Carbon Diamond coatings. Custom coatings for Germanium windows available on request and to your specific requirement with diameters up to 300mm diameters.

Typical specs:
     •   Material: Germanium
     •   Diameter Tolerance: Up to 300mm +0, -0.02mm
     •   Thickness Tolerance: +/- 0.2mm
     •   Flatness: < 2 waves over 90% aperture
     •   Surface Quality: < 40-20 scratch/dig
     •   Parallelism: 5 arcmin
     •   Coating: AR/DLC (Diamond like coating @ 7-14 micron)

Our Germanium optics are checked for quality in our state-of-the-art Metrology laboratory using equipment from Trioptics, Varian and Starret allowing us to work to the highest QA standards and meet the tolerance specifications on these precision components.

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Knight OpticalProductsopticsHK780 Germanium windowsDLC AR coated lensesthermal imagingUV wavelengthsVIS wavelengthswide-angle lensesmicroscopesIR transmitting materialGermanium components

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