This is a Cf-pc-38.1-100 38.1 mm Dia. CaF2 Plano-Concave Lens, a high-quality optical component sourced from Alkor Technologies. The lens is designed with a spherical shape and a base shape of a circle, making it suitable for a wide range of optical applications.
The lens has a diameter of 38.1 mm and a center thickness of 2.5 mm. The effective focal length (EFL) of this lens is -100mm, indicating that it is a diverging lens, which spreads out light rays that pass through it. The inner radius of the lens is 0, and the outer radius is also 0, which is typical for plano-concave lenses.
The lens is made of CaF2 (Calcium Fluoride) material, identified as "caf2 mal-1963" in the material database. This material is known for its excellent transparency in the ultraviolet, visible, and near-infrared regions of the spectrum. The lens is uncoated, which means it does not have any additional layers to enhance its optical properties.
This lens is designed to work with a wavelength of 5000. It is in stock and available for immediate purchase, as indicated by its valid weblink status. For more information about this lens, please refer to the vendor's website at http://www.alkor.net/CaF2_plano_concave_lenses.html.