The KPX358-C is a Plano-Convex lens, a type of spherical lens, sourced from MKS/Newport. This lens, with a base shape of a circle, has a diameter of 15.0 mm and a thickness at the edge of 1.9 mm. The center thickness is 5.7 mm, and the effective focal length (EFL) is 18 mm. The lens's inner radius is 0, and the front and back surfaces have a coating of MgF2, which is new and from figur.
The lens is designed to work within a wavelength range of 589 nm. The front surface has a radius of curvature (R1) of 9.337 mm, and the back focal length (BFL) is 14.2 mm. The lens is made of n-BK7 Schott material, a common type of optical glass known for its excellent optical properties.
This lens is available from MKS/Newport, and the web link provided is valid and indicates that the lens is in stock. The detailed specifications and availability make this lens a reliable choice for various optical applications within the specified wavelength range.