Germanium Windows for Thermal Imaging and Night Vision

01 Feb 2017

Are you looking for a popular high refractive index and good IR transmission range material covering from 1.8-16µm?

Here we are; Knight Optical’s Germanium glass 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, medical applications, and pyrometry; but also in IR imaging systems, and thermographic cameras. 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 size and shape with Anti-Reflection coatings on one or both sides, and/or with Hard Carbon Diamond coatings.

Custom coatings for Germanium windows available on you 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.

Contact our technical sales team to discover how Knight Optical’s high quality Dichroic Filters and superior service can improve your instrumentation and supply chain experience.

UK, Europe, Asia & RoW: E-Mail info@knightoptical.co.uk Tel +44 (0)1622 859444

USA & Canada: E-Mail usasales@knightoptical.com Tel +001 401-583-7846