This is the BF-px-38.1-1000, 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 large effective focal length (EFL) of 1000mm, making it suitable for applications that require high magnification or narrow fields of view. The lens is uncoated, which means it does not have any additional layers to enhance light transmission or reduce surface reflections.
The geometry of the lens includes a thickness of 2mm at the edge and 2.4mm at the center. The lens's inner and outer radii are both zero, indicating a planar surface on one side and a curved surface on the other. The curvature of the curved surface is defined by a radius of 449.5mm.
The lens is made from BaF2, a material known for its excellent transparency in the ultraviolet, visible, and near-infrared regions of the spectrum. This makes the lens suitable for applications in these spectral ranges.
For more detailed information, please refer to the vendor's website using the provided weblink.