This product is a PLCC-10.0/12.9UV 10 mm Dia. UVFS Plano-Concave Lens, offered by Laser Components. The lens has a base shape of a circle and is designed for use with a wavelength of 248 nm.
The lens is spherical in shape, with a diameter of 10 mm and a thickness at the center of 2 mm. It features a plano-concave design, with an inner radius of 0 mm and an outer radius of 0 mm. The effective focal length (EFL) of this lens is -25 mm, which is typical for plano-concave lenses and indicates that the lens will diverge light rays.
The lens is made from UVFS material, specifically identified as UVFS Mal-1965. This material is suitable for use in ultraviolet applications. The lens is uncoated, which means it does not have any additional layers to protect it or modify its optical properties.
According to the vendor, this item is in stock and detailed information about it can be found on their website at https://www.lasercomponents.com/fileadmin/user_upload/home/Datasheets/lc-optics/substrates/plano_concave_lenses.pdf.