This is a Plano-Concave Spherical Lens, sourced from the renowned optical components manufacturer, Laser Components. The lens, which has a base shape of a circle, is designed for use with a wavelength of 248nm.
The lens has a diameter of 25.4mm and a center thickness of 2mm. The effective focal length (EFL) of this lens is -250mm, indicating that it is a diverging lens. The radius of curvature for the concave surface is -128.8mm. The lens does not have any coatings, as indicated by the empty 'coating' field in the item data.
The lens is made of UVFS material, specifically identified as UVFS Mal-1965. This material is suitable for use in ultraviolet applications. The item data does not provide information about the availability of this lens in other materials.
The item data also does not provide information about the tolerance of the lens parameters, the surface quality, or the transmission characteristics of the lens. However, the vendor, Laser Components, is known for providing high-quality optical components, so users can expect a certain level of quality and performance from this lens.
For more detailed information about this lens, users can refer to the datasheet provided by Laser Components. The link to the datasheet is included in the item data.