The SLB-05B-25P is a high-quality double-convex lens, uncoated, with a 5.0 mm diameter and a focal length of 25.2 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. It features a base shape of a circle, with a thickness of 1.1 mm at the edge and 1.3 mm at the center. The effective focal length (EFL) is 25.2 mm, and the radius of curvature for the first and second surfaces are 25.95 mm and -25.95 mm respectively. The back focal length (BFL) is 24.8 mm.
This lens is designed for use at a wavelength of 546.1 nm, making it suitable for a wide range of applications. The uncoated surface ensures high light transmission, although it may be more susceptible to environmental factors compared to coated lenses.