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.

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.

Germanium optical materials have several significant advantages:

High refractive index‌: The refractive index of germanium changes with the change of wavelength, and is especially high in the infrared light band. It can effectively focus light and is suitable for high-precision optical systems.

Broad infrared transmission band‌: Germanium lens has high transmittance in the 2-16 micron band and is suitable for a variety of infrared applications, such as thermal imaging, night vision equipment, etc.

Low absorption coefficient: Germanium lens has a small absorption coefficient of infrared light, which reduces energy loss and improves the efficiency and sensitivity of the optical system.

Low dispersion: Germanium’s low dispersion helps maintain focus and consistency of light at different wavelengths, improving image clarity.

High temperature resistance: Germanium can maintain optical properties under extreme temperature conditions and is suitable for industrial applications in high temperature environments.

Germanium (Ge) is well suited for infrared laser applications due to its wide transmission range (2.0 - 16 µm) and opacity in the visible part of the spectrum. This makes it ideal for biomedical and military imaging applications. Germanium optical components are also used in infrared optical systems‌ for infrared imaging, thermal imaging, infrared sensors and detectors, etc.

We can also customize Germanium Lenses, Germanium Domes, and Germanium Windows, etc., according to customer needs to meet your specific application needs.