This is the PLCX-25.4-46.4-UV, a Plano-Convex Spherical Lens with a diameter of 25.4 mm, sourced from CVI Laser Optics. The lens is designed for use with a wavelength of 266 nm and is made from UVFS material, specifically identified as MAL-1965.
The lens geometry features an edge thickness of 3.2 mm and a center thickness of 5 mm. The effective focal length (EFL) is 92.9 mm, making it suitable for a variety of optical applications. The lens has a plano surface on one side and a convex surface with a radius of curvature of 46.4 mm on the other. The inner and outer radii are both 0, indicating a uniform curvature.
The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, it is still a high-quality, laser-grade lens, suitable for use in demanding applications.
The lens is currently in stock and more information about it can be found in the provided link: https://www.idexot.com/media/wysiwyg/cms-pages/pdf/2-Spherical_Lenses.pdf