The SLB-20-50PM is a Plano-Convex lens, a type of spherical lens, sourced from OptoSigma. This lens has a diameter of 20.0 mm and a focal length of 50.0 mm, making it suitable for a wide range of optical applications. The lens is made from n-bk7 schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence.
The lens features a Plano-Convex geometry, meaning one side is flat (Plano) and the other side is curved (Convex). The curvature of the convex side is defined by a radius of 25.95 mm. The lens has an edge thickness of 2.0 mm and a center thickness of 4.0 mm. The back focal length (BFL) is 47.4 mm, and the effective focal length (EFL) is 50.0 mm.
The SLB-20-50PM is coated with Opt M on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission in the spectral range of 400-700 nm. The lens is currently in stock and available for immediate shipping.