This is the G052207000 12.7 mm Dia. N-BK7 Mounted Double-Convex Lens, a high-quality optical component sourced from Qioptiq Photonics. The lens, designed for precision optics applications, features an effective focal length (EFL) of 30mm and is uncoated.
The lens is spherical in shape, specifically a convex-convex design, with a base shape of a circle. The diameter of the lens is 12.7 mm, and it has a center thickness of 3 mm and an edge thickness of 1.6 mm. The inner and outer radii are 0, and the radii of curvature are 30.287 mm for both the first and second surfaces.
The lens is made of N-BK7, a popular glass type in the optical industry known for its excellent optical properties. This specific lens is uncoated, which means it does not have any additional layers to enhance its optical performance or protect it from environmental factors.
According to the vendor's website, this lens is in stock, and you can find more information about it, including purchasing options, at the following link: https://www.qioptiq-shop.com/en/Precision-Optics/Singlets/Symmetric-Convex-Lenses/Symmetric-convex-lenses-mounted.html