Germanium(Ge) Plano-Convex Lenses

Germanium (Ge) single crystal is a chemically inert material with a transmission spectral range of 2-12 μm. It is a very commonly used infrared optical material with high hardness, good thermal conductivity, and insoluble in water. Widely used in infrared imaging systems and infrared spectrometer systems. Germanium single crystal has good mechanical properties and thermal conductivity, and the absorption at 10.6μm is very small. It is an ideal material for CO2 laser lenses, windows and output coupling mirrors. Germanium single crystals are also used as substrate materials for various infrared filters

Germanium(Ge) plano convex lens is convex on one side and flat on the other and has a positive focal length, it been widely applied for laser systems and infrared systems.

Nova can provide Germanium(Ge) Plano-Convex Lenses with diameters from 2-300mm and thicknesses from 0.12-60mm (accuracy up to 20-10, 1/10L@633nm),coating AR, BBAR, AF or upon request.

Technical parameters of Germanium(Ge) Plano-Convex Lenses

Material properties of Germanium(Ge)

Transmission curve

Germanium is widely used because of its high refractive index, large transmission distance range and robust mechanical properties. Optical grade germanium crystal has a wide infrared transmission band (available in both 3~5μm and 8~12μm bands) and is a good material for making infrared optical lenses, mostly used in thermal imaging cameras and infrared lasers.

Typical size of Germanium(Ge) Plano-Convex Lenses