LB1630 N-BK7 Bi-Convex Lens; Dia:2 in; f=100.0 mm Uncoated

The LB1630 N-BK7 Bi-Convex Lens is a high-quality optical component sourced from Thorlabs, a leading vendor in the field of precision photonics. This lens, with a diameter of 2 inches and a focal length of 100.0 mm, is designed for use in a wide range of optical systems, including imaging, beam shaping, and laser applications.

The lens is made from N-BK7, a popular glass type known for its excellent optical properties. This material, also known as BK7, is a crown glass with a high refractive index and low dispersion, making it ideal for applications that require high image quality and low chromatic aberration. The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. However, uncoated lenses can still provide excellent performance in many applications, especially when used in conjunction with other coated optical components.

The geometry of the lens is carefully designed to provide optimal performance. The lens has a diameter of 50.8 mm (2 inches), a thickness at the edge of 3 mm, and a thickness at the center of 9.5 mm. The effective focal length (EFL) is 100.0 mm, and the back focal length (BFL) is 96.8 mm. The radii of curvature for the first and second surfaces are 101.4 mm and -101.4 mm, respectively. The lens does not have an inner radius or an outer radius.