This is the BF-px-38.1-2000, a 38.1 mm diameter Plano-Convex lens made from BaF2 material, featuring an effective focal length (EFL) of 2000mm. This lens is sourced from Alkor Technologies and is currently in stock, as indicated by its valid weblink status.
The lens is spherical in shape, with a thickness of 2mm at the edge and 2.3mm at the center. It does not have any coating, as indicated in the item data. The lens's inner and outer radii are both zero, and its first radius of curvature (R1) is 899.5mm.
The BF-px-38.1-2000 is a versatile lens, suitable for a wide range of applications due to its unique properties. It is made from BaF2, a material known for its excellent transmission properties in the ultraviolet, visible, and near-infrared regions of the spectrum. This makes it an ideal choice for applications that require high-transmission optics.
For more detailed information about this lens, please refer to the vendor's website using the provided weblink.