KPX540-C 12.7 mm Dia. x 19.0 mm FL; MgF2 Coated; Plano-Convex Lens MgF2 400-700nm

The KPX540-C is a Plano-Convex lens, a type of spherical lens, sourced from MKS/Newport. This lens, with a base shape of a circle, is designed for use in the visible light spectrum, specifically at a wavelength of 546.1 nm. The lens is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost.

The lens has a diameter of 12.7 mm and a thickness at the edge of 3 mm. The center thickness is slightly greater at 5.33 mm. The effective focal length (EFL) of the lens is 19 mm, which is the distance over which the lens will focus parallel rays of light. The front radius of curvature (R1) is 9.81 mm, and the back focal length (BFL) is 15.48 mm. The inner radius of the lens is 0 mm, indicating that it is a plano-convex lens, meaning one side is flat while the other is curved.

The KPX540-C lens features a coating of MgF2 on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission in the spectral region from 400 to 700 nm. The lens is currently in stock and available for purchase, as indicated by its valid web link status.