The LB4821-UV is a high-quality double-convex lens, boasting a diameter of 50.8 mm and a focal length of 100 mm. This lens is designed for use in the ultraviolet spectrum, specifically between 245-400 nm, making it an ideal choice for applications requiring precise UV light manipulation.
This lens is sourced from Thorlabs, a trusted name in the optical components industry, and is crafted from UVFS, a material with a refractive index of 1.49 at 588 nm. The lens features a front and back coating of THo UVFS UV Bbar, enhancing its durability and performance in UV applications.
The lens geometry includes an edge thickness of 3 mm and a center thickness of 10.3 mm, providing robust structural integrity. The radii of curvature for the front and back surfaces are 90.4 mm and -90.4 mm, respectively, contributing to the lens's double-convex shape. The lens has no inner or outer radius, further emphasizing its robust design.