LB4553-C UV Fused Silica Bi-Convex Lens; Dia:2 in; f=75.0 mm ARC 1050-1700nm

The LB4553-C is a high-quality UV Fused Silica Bi-Convex Lens, sourced from the renowned optical component manufacturer, Thorlabs. This lens boasts a diameter of 2 inches, a focal length of 75.0 mm, and is designed to provide excellent performance in the ARC 1050-1700nm wavelength range.

The lens is constructed with a base shape of a circle, featuring a geometry that includes a 50.8 mm diameter, a 2.5 mm thickness at the edge, and a 12.5 mm thickness at the center. The effective focal length (EFL) is 75 mm, while the back focal length (BFL) is 70.6 mm. The radii of curvature for the first and second surfaces are 67 mm and -67 mm, respectively.

This lens is made from UV Fused Silica, a material with a high damage threshold and excellent transmission properties across a wide range of wavelengths. The lens is coated with a broadband anti-reflection coating, specifically designed for the 1050-1700nm range, which significantly reduces surface reflections and improves overall transmission.

The LB4553-C is available for purchase directly from Thorlabs, and the provided weblink indicates that it is currently in stock. This lens is a Spherical Lens of the Convex-Convex type, making it suitable for a wide range of optical applications.