This is a PLCC-15.0-51.5-UV 15 mm Dia. UVFS Laser Grade Plano-Concave Lens, a high-quality optical component sourced from CVI Laser Optics. The lens is uncoated and designed for use with a wavelength of 588 nm.
The lens is a spherical design, specifically a plano-concave lens with a base shape of a circle. The diameter of the lens is 15 mm, and the center thickness is 2 mm. The effective focal length (EFL) of the lens is -100 mm, indicating that it is a diverging lens. The radius of curvature for the concave surface is -51.5 mm.
The lens is made from UVFS material, specifically UVFS Mal-1965. This material is suitable for use in laser applications. The lens does not have any coating, which may affect its performance in certain applications.
The lens is in stock and available for purchase. More detailed information about the lens, including its full specifications, can be found in the catalog provided by the vendor, CVI Laser Optics. The catalog is available at https://www.idexot.com/media/wysiwyg/cms-pages/pdf/2-Spherical_Lenses.pdf.