This is a G063319525 model lens from Qioptiq Photonics, a leading provider of precision optics. The lens is spherical in shape, specifically a symmetric convex-convex lens, and is mounted on fused silica (UVFS). It has a base shape of a circle with a diameter of 22.4 mm.
The lens has a thickness of 1.6 mm at the edge and 4.2 mm at the center. The effective focal length (EFL) of the lens is 50 mm, making it suitable for a wide range of optical applications. The first radius of curvature (R1) is 49.403 mm, while the second radius of curvature (R2) is -49.403 mm, indicating a double-convex lens.
The lens is designed to work with a wavelength of 355 nm and comes with a front and back coating of Qio Bbar Arb2nirnbk7. This coating enhances the lens's performance by reducing reflection and increasing transmission. The lens is currently in stock and available for purchase on the Qioptiq Photonics website.