LB4223-B UV Fused Silica Bi-Convex Lens; Dia:1 in; f=750.0 mm ARC 650-1050nm

The LB4223-B 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 1 inch and a focal length of 750.0 mm, making it suitable for a wide range of optical applications.

The lens is made from UV fused silica, a material known for its excellent transparency across a broad spectrum, from 190 to 2000 nm. This makes the LB4223-B particularly suitable for applications that require high transmission in the ultraviolet region, such as UV spectroscopy or fluorescence microscopy.

The lens features a spherical shape, with radii of curvature of 689.8 mm for both the front and back surfaces. This design ensures a high level of optical performance, with minimal spherical aberration. The lens has a center thickness of 2.2 mm and an edge thickness of 2 mm, providing robustness and durability.

The LB4223-B is coated with Thorlabs' BBAR coating, which is designed to reduce reflection and increase transmission across the 650-1050 nm range. This coating ensures optimal performance in applications that use near-infrared light, such as telecommunications or biomedical imaging.