This is the PLCX-50.8-515.1-UV, a Plano-Convex Spherical Lens with a diameter of 50.8 mm, sourced from CVI Laser Optics. The lens is designed for use with a wavelength of 266 nm and is uncoated.
The lens's geometry is characterized by a thickness of 5.8 mm at the edge, increasing slightly to 6.4 mm at the center. The curvature of the lens is defined by a radius of 515.1 mm on the curved face. The Effective Focal Length (EFL) of this lens is 1030.9 mm, making it suitable for a variety of applications that require precise focusing of light.
The lens is made from UVFS material, specifically identified as MAL-1965 in the material ID. This material is known for its high transmittance and excellent optical quality, making it ideal for use in laser applications.
The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. While this may result in a slightly lower transmission rate compared to coated lenses, it also means that the lens is less susceptible to damage from laser exposure.
The lens is currently in stock and more information about it can be found in the provided weblink. This includes detailed specifications and other technical data that may be useful for your application.