Germanium windows infrared optics Ge window spherical

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Germanium windows/Ge windows

Germanium windows is widely used in infrared lenses, including military application and civil use. It is mainly used in airborne infrared lens, shipborne infrared lens, road-based infrared lens, car infrared lens, infrared gun aiming lens, helmet infrared lens and handheld infrared lens, etc.; Civilian infrared ge window is mainly used in various surveillance cameras, night-assisted pilots, security, civilian vehicles, civilian vessels, civil aircraft, police and so on.

Germanium(Ge) Windows for thermal imaging
Germanium windows are ideal for IR applications with its broad transmission range and opacity in the visible portion of thespectrum. Germanium has a high index of refraction, making it a perfect choice for applications that require low dispersion.
Germanium is commonly used in IR imaging systems typically operating in the 2 µm to 12 µm spectral range, covers the LWIR (8-12μm)and MWIR (3-5μm) thermal imaging wavelength range. Germanium can be AR coated with Diamond producing an extremely tough front optic. Germanium is more rugged than other IR materials, but caution should be taken for high temperature applications where the material will become opaque in the IR realm as the temperature rises.

Features and Abilities
Diameter range: ~ 300mm; Various types of coating:

AR/AR@7-14um;
DLC (diamond or hard carbon coating)/AR@7-14um; BBAR/BBAR@3-12um;
Customized coating;

Materials	Optical grade germanium single crystals
Aperture	>90%
Dimension tolerance	+0.0/-0.2mm
Thickness tolerance	+/-0.2mm
Surface Quality	60/40 40/20 or better
Parallelism	1 arc minute
Chamfer	0.3-0.5mmx45degree
Coating	AR/AR@7-14μm DLC/AR@7-14μm BBAR/BBAR@3-12μm See the curves below

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Company Introduction

Shenyang Ebetter Optics Co.,Ltd. is a professional manufacturer of precision optical components and optical lens, diffraction grating manufacture. Since the company was established, it has been committed to the research and production and sales. We can carry out the optical system design and production of related accessories,and moreover we have already got import and export rights. nowadays products have been sold to many countries and regions,and established long-term good relations of cooperation with the optical companies of United States,Canada,the European Union and other countries. We get a good reputation with quality products.

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Germanium windows infrared optics Ge window spherical

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