This is a G311204329 12.5 mm Dia. UVFS Double-Convex Lens, specifically designed for use with a wavelength of 355nm. The lens is sourced from the reputable vendor Qioptiq Photonics, and it is currently in stock with valid weblinks provided for further information.
The lens is of the Spherical type, with a Sub Type of Spherical Lens (Convex-Convex). It has a Base Shape of Circular and features a diameter of 12.5mm. The thickness at the edge of the lens is 1mm, while the thickness at the center is 4.7mm. The Effective Focal Length (EFL) of the lens is 12.5mm, and it has an inner radius of 0 and an outer radius of 0.
The lens is made from UVFS material, with the specific Material ID being UVFS mal- 1965. It comes with a coating on both the front and back, specifically Qio HP Nbar Arhs-Yag. This coating enhances the lens's performance and durability.