This is the G311207322 model from Qioptiq Photonics, a 22.4 mm diameter UVFS Double-Convex Lens with an effective focal length (EFL) of 30mm. The lens is sourced from Qioptiq Photonics, a renowned vendor in the optical industry, and is available for purchase on their website, where it is currently in stock.
The lens is a Spherical Lens of the Sub Type Symmetric-Convex, featuring a Base Shape of Circular. The geometry of the lens includes a thickness edge of 1.5mm and a thickness center of 6mm. The lens's front and back are coated with qio bbar arb2visnbk7, a coating type that enhances the lens's performance and durability.
The lens is made of UVFS material with the ID mal- 1965. It is designed to work with a wavelength of 355nm. The lens's shape is Spherical, and it has an Inner Radius and Outer Radius of 0. The r1 and r2 parameters are 29.007mm and -29.007mm respectively.