This is a Plano-Convex lens, type of spherical lens, with a base shape of a circle, sourced from Alkor Technologies. The lens has a diameter of 38.1 mm and a thickness at the edge of 2 mm, while the center thickness is 6.3 mm. The effective focal length (EFL) of this lens is 100 mm, making it suitable for various optical applications.
The lens is made of BaF2, a material with a refractive index that is wavelength-dependent, and it is uncoated. The inner radius of the lens is 0, and the outer radius is also 0, indicating a plano surface on one side and a curved surface on the other. The curvature of the curved surface is defined by a radius of 45.08 mm.
The lens is available from Alkor Technologies, and the link provided leads to their website where it can be found in their catalog. The status of the weblink indicates that the lens is in stock, ensuring quick delivery for your optical project needs.