LA4579-405 25.4 mm Dia. UVFS Plano-Convex Lens; EFL=300mm 405nm V-Coat

The LA4579-405 is a plano-convex lens with a diameter of 25.4 mm, sourced from the renowned optical components manufacturer, Thorlabs. This lens is designed for use with a wavelength of 587.6 nm and features a V-coating on both the front and back surfaces, specifically tailored for 405 nm.

The lens's geometry is characterized by its edge thickness of 2 mm and center thickness of 2.6 mm. The effective focal length (EFL) is 301.1 mm, providing a substantial focal length for various applications. The lens's shape is spherical, with a radius of curvature (R1) of 138 mm for the curved surface.

The LA4579-405 is made from UVFS material, identified as MAL-1965 in Thorlabs' material database. This material is suitable for use in ultraviolet (UV) applications, making this lens a versatile choice for UV optical systems.

The lens's coating, V-AR 405, is a broadband anti-reflection coating designed for use at 405 nm. This coating reduces surface reflections, enhancing transmission and improving overall system performance.