LB1471-A N-BK7 Bi-Convex Lens; Dia:1 in; f=50.0 mm ARC 350-700nm

The LB1471-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 1 inch (25.4 mm) and a focal length of 50.0 mm, providing a high level of magnification and a narrow depth of field. The bi-convex design, characterized by two spherical surfaces that curve outwards, ensures efficient light transmission and minimal distortion.

The LB1471-A is coated with a broadband anti-reflection coating (ARC) that operates within the 350-700nm wavelength range. This coating reduces surface reflections, thereby enhancing the overall transmission efficiency of the lens. It also helps to minimize chromatic aberration, a common issue in optical systems that can lead to color fringing and distorted images.

The lens has a central thickness of 5.2 mm and an edge thickness of 2 mm, providing robustness and durability. The geometry of the lens is designed to minimize spherical aberration, ensuring that the light rays converge at a single point, resulting in sharp and clear images.