This is the G311208000 22.4 mm Dia. UVFS Double-Convex Lens, a high-quality optical component sourced from Qioptiq Photonics. This lens, designed for use with a wavelength of 355 nm, is a spherical lens with a base shape of a circle and a Sub Type of Spherical Lens (Convex-Convex).
The lens has a diameter of 22.4 mm and a thickness at the edge of 1.7 mm. The center thickness is 4.9 mm, and the effective focal length (EFL) is 40 mm. The first radius of curvature (r1) is 39.525 mm, and the second radius of curvature (r2) is -39.525 mm. The lens does not have any inner or outer radius.
The lens is made of UVFS material with the ID mal-1965. It is uncoated, as indicated by the empty 'coating' field in the item data. The lens is in stock and available for purchase on the Qioptiq Photonics website, as indicated by the 'weblink status' field.
For more information, please refer to the vendor's website using the provided weblink.