This is the G063165400, a 31.5 mm diameter UVFS mounted double-convex lens with an effective focal length (EFL) of 80mm. The lens is sourced from Qioptiq Photonics, a renowned vendor in the field of precision optics.
The lens is of the spherical type, specifically a symmetric convex-convex lens, and is mounted on a fused silica base. The geometry of the lens is defined by its diameter of 31.5mm, a thickness of 2mm at the edge, and a center thickness of 5.1mm. The lens's inner and outer radii are both zero, and its radii of curvature are 80.583mm for the first surface and -80.583mm for the second surface.
The lens is made from UVFS material with a wavelength of 355nm. It is coated with Qio Silver RAGV 45 on both the front and back surfaces, enhancing its performance in specific applications.
The lens is currently in stock and available for purchase. For more information, you can refer to the vendor's website through the provided weblink, which has been verified to be valid and up-to-date.