The 48-304 is a UV-AR coated, UV double-convex lens, boasting a diameter of 25mm and a focal length of 25mm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is currently in stock with valid weblinks provided for easy access to additional information.
The lens is constructed with a fused silica material, identified as mal-1965, and features a spherical shape, with a base shape of a circle. The geometry of the lens is defined by its diameter, thickness edge (2.68mm), thickness center (10.9mm), effective focal length (25mm), and radii (r1: 21.06mm, r2: -21.06mm). The back focal length measures 20.93mm, while the inner and outer radii are both 0mm.
The lens is coated with a UV-AR coating on both the front and back surfaces, adhering to the standard curve as defined by Edmund Optics. This coating is designed to operate within the wavelength range of 250-425nm.