This is the G311026322 22.4 mm Dia. UVFS Double-Convex Lens, a high-quality optical component sourced from Qioptiq Photonics. This lens, designed for use with a center wavelength of 355 nm, features a symmetric convex-convex geometry, making it ideal for a wide range of optical applications.
The lens has a diameter of 22.4 mm and a thickness of 1.6 mm at the edge, while the center thickness measures 7 mm. The effective focal length (EFL) is 25 mm, and the radii of curvature for the first and second surfaces are 24.406 mm and -24.406 mm, respectively. The lens is made from UVFS material with the ID "uvfs mal- 1965".
The G311026322 lens comes with broadband anti-reflection coatings on both the front and back surfaces. These coatings, identified as "qio bbar arb2visnbk7", are designed to minimize surface reflections and increase transmission efficiency across the visible spectrum.