This is a G063115331 Plano-Convex lens, a type of spherical lens, mounted with UVFS (Ultra Violet Fused Silica) material. The lens has a diameter of 31.5 mm and an effective focal length (EFL) of 100mm. The lens's geometry includes a 2mm thickness at the edge and a 4.5mm thickness at the center.
The lens is sourced from Qioptiq Photonics, a renowned vendor in the field of precision optics. It is currently in stock and available for purchase through their official website. The weblink provided leads directly to the product page for easy access and reference.
The lens's coating is Qio AL RALVIS AOI 45 on both the front and back surfaces. This coating enhances the lens's performance in specific wavelengths, in this case, 355nm. The lens's base shape is circular, and its geometry is spherical, which is a common characteristic of plano-convex lenses.