LB4913-C UV Fused Silica Bi-Convex Lens; Dia:1 in; f=125.0 mm ARC 1050-1700nm

The LB4913-C is a high-quality bi-convex lens, designed and manufactured by Thorlabs, a leading vendor in the optical industry. This lens, with a diameter of 1 inch, is specifically designed for use in the ultraviolet (UV) spectrum, making it ideal for applications that require precise focusing or imaging in this range.

The lens features a focal length of 125.0 mm, which is the distance from the center of the lens to the point at which light rays converge or diverge. This long focal length, combined with the lens's large diameter, provides a wide field of view and low distortion, making it suitable for a variety of applications.

The LB4913-C is made from UV fused silica, a material known for its high transparency in the UV range. This material also has a low coefficient of thermal expansion, making it resistant to thermal shock and dimensional changes due to temperature variations.

The lens is coated with Thorlabs' Broadband Anti-Reflection Coating (BBAR), which is designed to reduce surface reflections and increase transmission across the 1050-1700nm wavelength range. This coating ensures that the maximum amount of light passes through the lens, improving the overall efficiency and performance of your system.

In terms of geometry, the lens has a center thickness of 3.4 mm and an edge thickness of 2 mm. The lens's front and back surfaces have radii of curvature of 114.5 mm and -114.5 mm, respectively, which contribute to its excellent optical performance.