LB4738-C UV Fused Silica Bi-Convex Lens; Dia:6 mm; f=20.0 mm ARC 1050-1700nm

The LB4738-C is a high-quality bi-convex lens, designed and manufactured by Thorlabs, a leading global supplier of photonics equipment. This lens boasts a diameter of 6 mm and a focal length of 20.0 mm, making it a versatile choice for a wide range of optical applications.

The lens is crafted from UV fused silica, a material known for its exceptional transparency across a broad spectrum, from 190 nm to 2100 nm. This makes the LB4738-C particularly suitable for use in ultraviolet (UV) and near-infrared (NIR) systems. 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-C features an anti-reflection coating (ARC) designed for the 1050-1700 nm range. This coating reduces surface reflections, enhancing the lens's transmission efficiency and overall performance. The coating is applied to both the front and back surfaces of the lens, ensuring optimal performance from all angles.

In terms of shape, the lens is spherical, with radii of curvature of 18.1 mm for the first surface and -18.1 mm for the second. This bi-convex design provides a large numerical aperture, making the lens ideal for imaging and beam shaping applications.