This is the G311713331, a 31.5 mm diameter Double-Convex Lens made from UVFS material with an effective focal length (EFL) of 50mm. The lens is sourced from the reputable vendor Qioptiq Photonics, and it is currently in stock, as indicated by its weblink status.
The lens's base shape is circular, and it features a symmetric convex-convex design. The geometry of the lens includes a thickness edge of 2.2mm and a thickness center of 7.3mm. The first radius of curvature (r1) is 49.594mm, while the second radius of curvature (r2) is -49.594mm, indicating the double-convex nature of the lens. The inner and outer radii are both 0mm.
The lens is made from UVFS material with a wavelength of 355nm. It comes with a front and back coating of Qio AL RALVIS AOI 45, ensuring optimal performance and durability. The lens's shape is spherical, which is ideal for a wide range of optical applications.
For more detailed information, please refer to the provided parameters and weblinks.