SLB-50-70PIR2 50.0 mm Dia. x 70.0 mm FL; Coated; Plano-Convex Lens 750-1550nm

The SLB-50-70PIR2 is a Plano-Convex lens, part of OptoSigma's extensive catalog of optical elements. This lens, with a diameter of 50.0 mm and a focal length of 70.0 mm, is designed for use within the wavelength range of 750-1550nm, making it suitable for a variety of applications within the infrared spectrum.

The lens is made from n-bk7 schott, a popular material in optical systems due to its excellent optical properties and versatility. The Plano-Convex geometry, where one side is flat and the other is curved, allows for efficient light collection and focusing. The lens has a thickness of 3mm at the edge and 13mm at the center, with an effective focal length (EFL) of 70.0 mm. The radius of curvature of the curved surface is 36.33 mm, and the back focal length (BFL) is 61.5 mm.

The lens features a coating of opt ir2 on both the front and back surfaces. This coating enhances the lens's performance within its specified wavelength range, providing improved transmission and reducing unwanted reflections. The lens is circular in shape, with no inner or outer radius specified, indicating a full-diameter lens.