This is a 31.5 mm diameter Plano-Convex lens, manufactured by Qioptiq Photonics, with an effective focal length (EFL) of 60mm. The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties and versatility.
The lens geometry features a convex surface with a radius of curvature of 31.851 mm, while the other surface is planar. The lens has a thickness of 2.1 mm at the edge and 6.3 mm at the center. Notably, the lens does not have any coating, which is indicated by "Uncoated" in its name.
This lens is a spherical lens, meaning it has a spherical surface, which is the most common type of lens surface due to its ease of manufacturing and high optical quality. The lack of coating means that the lens will not have any additional protection or enhancement for its optical properties, such as anti-reflective coatings.
The lens is in stock and available for purchase on the Qioptiq Photonics website, as indicated by the "weblink status" field in the item data. The website link is provided for users who wish to learn more about this product or make a purchase.