This is the PLCX-25.4-32.5-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 "UVFS MAL-1965".
The lens's geometry is characterized by a thickness of 2.41 mm at the edge, increasing to 5 mm at the center, and a radius of curvature (R1) of 32.48 mm. The effective focal length (EFL) is 65 mm, making it suitable for a variety of optical applications.
The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. However, this also means that it is more cost-effective and suitable for applications where coating is not necessary.
The lens's catalog number is PLCX-25.4-32.5-UV, and it is currently in stock. For more detailed information, you can refer to the product's datasheet available at https://www.idexot.com/media/wysiwyg/cms-pages/pdf/2-Spherical_Lenses.pdf.