LD4293-UV 25.4 mm Dia. UVFS Double-Concave Lens; EFL=-50.2mm 245-400nm

The LD4293-UV is a high-quality spherical lens from Thorlabs, designed for use in ultraviolet (UV) applications. This lens, with a diameter of 25.4 mm, is a double-concave type, featuring a center thickness of 3.5 mm and an effective focal length (EFL) of -50.2 mm. The double-concave design, characterized by its negative focal length, is particularly useful in imaging systems for correcting aberrations and achieving a wider field of view.

The lens is made from UVFS, a material specifically designed for UV applications, with a wavelength of 588 nm. This material ensures high transmittance and low absorption in the UV range, making it ideal for use in UV imaging and spectroscopy applications. The lens is coated with THo UVFS UV BAR on both the front and back surfaces, enhancing its UV transmission and providing additional protection against environmental factors.

The LD4293-UV is currently in stock and available for immediate purchase from Thorlabs. With its robust design, high-quality materials, and precise construction, this lens is an excellent choice for a wide range of UV applications.