48-045 12mm Dia. x 75mm FL; UV-AR Coated; UV Double-Convex Lens UV-AR 250-425nm

The 48-045 is a UV-AR coated, double-convex lens with a diameter of 12mm and a focal length of 75mm, sourced from the reputable optical vendor, Edmund Optics. This lens is designed for use within the UV spectrum, specifically between 250-425nm, making it an ideal choice for applications such as UV imaging or spectroscopy.

The lens features a standard UV coating on both the front and back surfaces, adhering to the EDMM UV STD CURVE, which is designed to enhance the lens's performance within the UV spectrum. This coating aids in reducing unwanted reflections and increasing transmission, thereby improving the overall quality of the optical system.

The geometry of the lens is characterized by its circular base shape, with an inner radius of 0mm and an outer radius of 0mm. The lens has a thickness of 2.06mm at the edge and 2.59mm at the center. The effective focal length (EFL) is 75mm, and the back focal length (BFL) is 74.11mm. The first radius of curvature (R1) is 68.36mm, and the second radius of curvature (R2) is -68.36mm, indicating a convex-convex lens shape.

The lens is made from fused silica, a material with a high transmission rate across a wide range of wavelengths, including the UV spectrum. This makes it an excellent choice for applications that require high-performance optics within the UV range.