LB1258-A N-BK7 Bi-Convex Lens; Dia:0.5 in; f=30.0 mm ARC 350-700nm

The LB1258-A is a high-quality bi-convex lens from Thorlabs, designed for use in a wide range of optical applications. This lens is fabricated from N-BK7, a popular borosilicate glass known for its excellent optical properties, making it an ideal choice for applications that require high-performance and precision.

The lens features a diameter of 0.5 inches (12.7 mm) and a focal length of 30.0 mm, providing a moderate magnification and a wide field of view. The bi-convex design, featuring two convex surfaces, offers superior light gathering capabilities and minimal spherical aberration, ensuring optimal image quality and clarity.

The LB1258-A is coated with Thorlabs' ARC coating, which is designed to reduce reflection and increase transmission across the visible spectrum (350-700 nm). This coating enhances the lens's performance in brightly lit environments and improves overall system efficiency.

The lens has a central thickness of 3.1 mm and an edge thickness of 1.8 mm, providing robustness and durability. The lens is also available with a variety of mounting options, allowing for easy integration into existing optical systems.