The KPX115-C is a Plano-Convex lens, a type of spherical lens, sourced from MKS/Newport. It boasts a base shape of a circle and is designed for use in the visible light spectrum, specifically at a wavelength of 589 nm. The lens is made from n-BK7 Schott, a high-quality optical glass, and features a front and back coating of MgF2, which enhances its performance in the 400-700 nm range.
The lens has a diameter of 25.4 mm and a thickness at the edge of 3 mm. The center thickness is slightly more at 3.39 mm. The effective focal length (EFL) is 400 mm, and the radius of curvature (R1) is 206.72 mm. The back focal length (BFL) is 397.76 mm, and the inner radius is 0 mm.
This lens is available for purchase directly from the vendor, MKS/Newport, and the link to their website is provided in the item data. The status of the weblink indicates that the lens is currently in stock, making it a readily available option for your optical needs.