SLB-20-70PM 20.0 mm Dia. x 70.0 mm FL; Coated; Plano-Convex Lens 400-700nm

The SLB-20-70PM 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 70.0 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 transparency 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 36.33 mm. The lens has an edge thickness of 2.0 mm and a center thickness of 3.4 mm, providing structural integrity and minimizing optical distortion.

The SLB-20-70PM is coated with an Opt M coating on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission within the 400-700nm wavelength range. The coating also provides protection against environmental factors, ensuring the lens maintains its optical properties over time.