SLB-50.8-80PIR2 50.8 mm Dia. x 80.0 mm FL; Coated; Plano-Convex Lens 750-1550nm

The SLB-50.8-80PIR2 is a Plano-Convex lens with a diameter of 50.8 mm and a focal length of 80.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-bk7 schott material, a popular choice for its high refractive index and low dispersion.

The lens's geometry is characterized by a 3 mm thickness at the edge and an 11.7 mm thickness at the center. The front and back surfaces of the lens are coated with opt ir2, a coating that enhances the lens's performance in the infrared spectrum, specifically between 750nm and 1550nm. This coating ensures optimal transmission and reduces reflection, making the lens suitable for applications that require high-quality imaging in the infrared range.

The lens's shape is spherical, with a radius of curvature of 41.52 mm on the convex side. The back surface of the lens is flat, and the lens has no inner or outer radius, indicating a simple, straightforward design. The effective focal length (EFL) of the lens is 80 mm, and the back focal length (BFL) is 72.3 mm.