Plano Concave lenses convert a beam of parallel light into divergent light rays. The divergent light rays are reversely focused at the virtual focus of the plano concave lens. Plano-concave lenses diverge a collimated beam from a virtual focus and are commonly used in Galilean-type beam expanders. Plano concave lens has negative focal lengths and negative spherical aberrations, which can be used to offset the aberrations of other lenses in the system.

Plano Concave lenses can be used in photography systems, imaging systems, beam expansion, projection and expansion of optical system focal length, laser measurement systems, and are widely used in telescopes, camera lenses, and microscopes.

AOS Optics customizes uncoated and anti-reflection coated plano concave lens to meet your different applications in different bands. Anti-reflection coating options include UV, VIS, NIR, and SWIR.

AOS also provides plano concave lenses with a variety of substrate materials. H-K9L optical glass substrates are suitable for visible and near-infrared band applications, germanium, silicon, zinc selenide, and calcium fluoride substrates are suitable for infrared applications, and fused silica is suitable for UV applications.