Optical lens processing manufacturers introduce you to germanium meniscus lenses

Germanium (Ge) Meniscus Lenses are meniscus lenses based on germanium.

A meniscus lens has an outer convex mirror surface and an inner concave mirror surface. If the convex curvature is greater than the concave curvature, the lens has a positive focal length. When used in combination with another lens, a positive meniscus lens can shorten the focal length, thereby increasing the numerical aperture of the system without introducing significant spherical aberration. (NA); if the curvature on the concave side is large and the curvature on the convex side is small, it is a negative meniscus lens. 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.

We provide meniscus lenses without coating or with IR2 (8-12μm) antireflection coating. Germanium (Ge) substrates are suitable for infrared applications. United Optical Technology has complete manufacturing and testing equipment, which can provide you with high-quality optical components and can customize meniscus lenses that meet your requirements. If you have more questions or needs, please feel free to contact us, we will wholeheartedly at your service.