The SLB-40B-80PM is a high-quality double-convex lens, boasting a diameter of 40.0 mm and a focal length of 81.2 mm. This lens is sourced from OptoSigma, a renowned vendor known for its precision optical components.
The lens is crafted from n-bk7 schott, a material widely recognized for its excellent optical properties. The base shape of the lens is circular, and it features a spherical geometry, with a center thickness of 6.9 mm and an edge thickness of 2 mm. The lens has an effective focal length (EFL) of 81.2 mm and a back focal length (BFL) of 78.8 mm.
The SLB-40B-80PM is coated with opt m on both the front and back surfaces, enhancing its performance in the 400-700nm wavelength range. This coating ensures high transmission and low reflection, making the lens ideal for a wide range of applications.