This is a G312413322 Plano-Convex Lens, a high-quality optical component sourced from Qioptiq Photonics. The lens, which has a base shape of a circle, is designed for use in the ultraviolet, visible, and near-infrared spectrum, specifically catering to wavelengths between 450nm and 700nm.
The lens has a diameter of 31.5mm and a thickness at the edge of 2mm. The center thickness is 6.4mm, and the effective focal length (EFL) is 60mm. The lens's front and back surfaces are coated with Qio Bbar Arb2visnbk7, a broadband anti-reflection coating that enhances transmission and reduces surface reflections.
The lens's geometry is spherical, with a radius of curvature of 30.509mm on the convex side. The inner and outer radii are both zero, indicating a uniform curvature across the lens's surface. The lens is made of UVFS (Mal-1965), a type of fused silica known for its excellent optical properties and durability.
This lens is currently in stock and can be purchased directly from the Qioptiq Photonics website. The link to the product page is provided for your convenience.