LD4931-UV 25.4 mm Dia. UVFS Double-Concave Lens; EFL=-25.1mm 245-400nm

The LD4931-UV is a high-quality spherical lens from Thorlabs, designed with a double-concave structure and a base shape of 25.4 mm in diameter. This lens is specifically engineered for use in the ultraviolet (UV) spectrum, with a wavelength of 588 nm, making it ideal for applications that require precise manipulation of UV light.

The lens features an effective focal length (EFL) of -25.1 mm, which is indicative of its double-concave design. This negative focal length allows for the convergence of light rays, making it suitable for use in focusing or imaging systems. The lens's geometry also includes inner and outer radii of 0 mm, and a center thickness of 3 mm, contributing to its overall optical performance.

The LD4931-UV is constructed from UVFS, a material with a refractive index well-suited for UV applications. Both the front and back surfaces of the lens are coated with THo UVFS UV BAR, a proprietary coating that enhances its performance in the UV spectrum. This coating helps to reduce surface reflections and increase transmission, thereby improving the overall efficiency of the lens.

This lens is currently in stock and available for immediate purchase through the vendor's website. The provided weblink offers direct access to the product page, ensuring a seamless shopping experience for interested buyers.