LB4738-A UV Fused Silica Bi-Convex Lens; Dia:6 mm; f=20.0 mm ARC 350-700nm

The LB4738-A is a high-quality bi-convex lens, designed and manufactured by Thorlabs. This lens, with a diameter of 6 mm, is specifically engineered 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 20.0 mm, indicated by the 'f' parameter, which is a critical specification in lens selection. This focal length, combined with the lens's diameter, allows for a compact and efficient optical system. The lens's geometry includes an edge thickness of 1.5 mm and a center thickness of 2 mm, contributing to its robustness and durability.

The LB4738-A is made from UV Fused Silica, a material known for its excellent transmission properties in the UV range. This material also offers high thermal stability and resistance to chemical environments, making it suitable for a wide range of applications.

The lens is coated with a broadband anti-reflection coating (ARC), designed to operate between 350-700 nm. This coating reduces surface reflections, thereby increasing transmission and improving overall system performance. The coating is applied to both the front and back surfaces of the lens, ensuring optimal performance from all angles.