IR Optical Windows, Φ40.0mm, Thickness=2.0mm IR2, Germanium (Ge) Single Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-2973-YJL)

IR Optical Windows, Φ40.0mm, Thickness=2.0mm IR2, Germanium (Ge) Single Crystal, model 190188, is manufactured by United Optical Technology Co., Ltd.
Germanium (Ge) Windows are parallel plane panels commonly used as protective windows for electronic sensors or detectors of the external environment. When selecting a window, attention should be paid to the window material, transmittance and transmission band, surface shape, smoothness, parallelism and other parameters.
An IR UV window is a window designed for use in the infrared or ultraviolet spectrum. Windows are designed to protect electronic sensors, detectors or other sensitive optical components from saturation or light damage.

Diameter: Φ40.0mm
Coating: Double Sided AR coating Ravg＜1%@8~12μm
Material: Germanium (Ge) Single Crystal
Surface Accuracy: 1λ@633nm
Thickness: 2.0mm
Parallelism: ＜1arcmin
Surface Quality: 40/20-60/40
Diameter Tolerance: +0.0/-0.1mm
Thickness Tolerance: ±0.1mm
Bevel: Protective Bevel 0.2~0.5mmX45°

Germanium is an optical glass material commonly used in the infrared band. The transmission band is 2.0-16μm. It has the characteristics of high refractive index and high Knoop hardness. Germanium is inert to air, water, acid, alkali, etc. and can be used for thermal imaging and infrared imaging in harsh environments. It can be used as a substrate for a variety of optical components, such as lenses, windows, etc.
Note: Special attention should be paid to the fact that germanium is a toxic material. Please wear gloves when using it and wash your hands after use.

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