The SLB-50-250PM is a Plano-Convex lens, a type of spherical lens, with a diameter of 50.0 mm and a focal length of 250.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-bk7 schott, a high-quality optical glass, and features a Plano-Convex geometry, where one side is flat (Plano) and the other side is curved (Convex).
The lens has a thickness of 3.0 mm at the edge and 5.4 mm at the center. The effective focal length (EFL) is 250.0 mm, and the radius of curvature (R1) is 129.75 mm. The back focal length (BFL) is 246.4 mm, and both the inner and outer radii are 0 mm.
The SLB-50-250PM is coated with Opt M on both the front and back surfaces, enhancing its performance in the wavelength range of 400-700nm. This lens is currently in stock and available for immediate purchase, as indicated by its valid web link status.