This Qioptiq Photonics lens is a 31.5 mm diameter Plano-Convex lens, designed for use in ultraviolet applications with a wavelength of 355 nm. The lens is mounted and features a fused silica material, identified as UVFS MAL-1965.
The lens's geometry is characterized by a 1.5 mm thickness at the edge, increasing to a center thickness of 3.3 mm. The effective focal length (EFL) is 140 mm, and the front surface has a radius of curvature of 70.287 mm. The lens's back surface is planar, and both surfaces are coated with Qio Silver RAGV 45.
The lens's coating, both front and back, is Qio Silver RAGV 45, which is specifically designed for use in ultraviolet applications. The lens is currently in stock and available for purchase on the Qioptiq Photonics website.