LB4293-B UV Fused Silica Bi-Convex Lens; Dia:2 in; f=1000.0 mm ARC 650-1050nm

The LB4293-B 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 and a focal length of 1000.0 mm, making it ideal for a wide range of optical applications.

The lens is designed with a Spherical shape, featuring a Base Shape of Circular. The geometry of the lens is meticulously crafted, with a thickness edge of 3 mm and a thickness center of 3.7 mm. The effective focal length (EFL) is 1000 mm, and the back focal length (BFL) is 998.7 mm. The radii of curvature for the first and second surfaces are 919.6 mm and -919.6 mm, respectively.

The lens is constructed from UV Fused Silica, a material with a Material ID of uvfs mal- 1965. This material is known for its excellent transparency across a wide spectrum, particularly in the ultraviolet region, making this lens suitable for use in UV applications.

The lens features a broadband anti-reflection coating, specifically designed for the wavelength range of 650-1050 nm. This coating, denoted as tho b bbar on both the front and back surfaces, significantly reduces surface reflections, thereby enhancing the overall transmission of the lens.