LA4158-405 25.4 mm Dia. UVFS Plano-Convex Lens; EFL=250mm 405nm V-Coat

The LA4158-405 is a Plano-Convex Spherical Lens with a diameter of 25.4 mm, making it suitable for a wide range of optical applications. This lens, sourced from Thorlabs, features an effective focal length (EFL) of 250.9 mm, which is crucial for determining the lens's magnification and field of view. The lens's geometry includes a 2 mm thickness at the edge and a 2.7 mm thickness at the center, providing a solid structure for various optical setups.

The lens is made from UVFS material with the ID 1965, which is specifically designed for use in the ultraviolet spectrum. The wavelength for this lens is 587.6 nm, which is in the visible light spectrum. This lens is coated with a V-AR-405 coating on both the front and back surfaces, which is a broadband anti-reflection coating optimized for 405 nm. This coating reduces reflection and increases transmission, enhancing the performance of the lens in its intended application.

The LA4158-405 is currently in stock and available for purchase through the Thorlabs website, as indicated by its "Valid - in stock" weblink status. This lens, like all products from Thorlabs, is backed by their commitment to quality and customer service, making it a reliable choice for your optical needs.