The LA2024-C is a 2 mm diameter Plano-Convex Spherical Lens made from N-SF11 Schott glass, designed for use within the wavelength range of 1050-1700nm. This lens, available from Thorlabs, boasts an effective focal length (EFL) of 4mm and features a front and back coating of tho c bbar.
The lens's geometry showcases a 0.8mm thickness at the edge and a 1mm thickness at the center, with no inner or outer radius specified. The plano-convex shape features a 3.1mm radius on the curved side. The item data indicates that this lens is in stock, and the vendor is Thorlabs.
For more information and specifications, you can refer to the official product page at https://www.thorlabs.com/thorproduct.cfm?partnumber=LA2024-C.