This is the BF-px-38.1-50, a 38.1 mm diameter Plano-Convex lens made from BaF2 (Barium Fluoride) material. The lens is sourced from Alkor Technologies and is currently in stock, as indicated by its valid weblink status.
The lens features a geometric design with a thickness of 2.1 mm at the edge and 12.5 mm at the center. It has an effective focal length (EFL) of 50.8 mm and a radius of curvature (R1) of 22.619 mm. The lens does not have an inner or outer radius, indicating a plano surface on one side.
The BF-px-38.1-50 is a Spherical lens with a Sub Type of Spherical Lens (Plano-Convex). It has a Base Shape of Circular and is uncoated, as there are no coating details provided in the item data.
The lens is designed to work with a wavelength of 5000 nm. It is important to note that the description is based solely on the provided item data and does not include any assumptions or additional details.