The SLB-40B-120P is a high-quality double-convex lens, 40.0 mm in diameter and featuring a focal length of 120.9 mm. This lens is sourced from OptoSigma, a renowned vendor known for their precision optical elements. The lens is made from n-bk7 schott, a popular material in the optical industry due to its excellent optical properties.
The lens geometry is characterized by its convex-convex shape, with a center thickness of 5.2 mm and an edge thickness of 2 mm. The effective focal length (EFL) is 120.9 mm, while the back focal length (BFL) is 119.1 mm. The first and second radii of curvature are 124.56 mm and -124.56 mm, respectively. The lens is uncoated, offering a clear, unaltered view of the light path.
This lens is ideal for a wide range of applications, including but not limited to, imaging systems, beam shaping, and laser applications. The provided web link leads to the product page on OptoSigma's website, where users can find more detailed information, including pricing and availability.