Plano-convex Lens

Plano-convex Lens

Plano Convex (PCX) Lenses focus parallel light rays into a point, which is the focal point of the lens. It is characterized by a positive focal length, one side is flat and the other is convex. When in use, the convex surface is usually facing the incident light, because the incident light on the two sides of the plano-convex lens has a slight difference in refractive index, so the focal length of the two sides is also different. In order to reduce spherical aberration, the light beam should be incident on the curved surface as much as possible. Plano-convex lenses are often used for aiming and focusing monochromatic light sources, converging parallel light, or converting divergent point light sources into parallel light.

Anti-reflection coating options include UV, VIS, NIR, and SWIR, which are double-sided coatings, which can greatly reduce the light reflection on the surface of the component and increase the transmittance of the plano-convex lens. Among them, K9 optical glass substrates are suitable for visible light and near-infrared band applications, germanium, silicon, zinc selenide, calcium fluoride and other substrates are suitable for infrared band applications, and fused silica is suitable for ultraviolet light band applications.