The SLB-50B-300PIR2 is a high-quality lens offered by OptoSigma, designed for use within the wavelength range of 750-1550nm. This lens boasts a base shape of a circle, with a diameter of 50.0 mm and a thickness at the edge of 3.0 mm, transitioning to a thickness at the center of 5.0 mm. The effective focal length (EFL) of this lens is 300.8 mm, making it suitable for a variety of applications.
The lens features a double-convex geometry, with radii of curvature of 311.4 mm for the first surface and -311.4 mm for the second surface. The back focal length (BFL) is 299.2 mm, and the lens does not have any inner or outer radius specified.
The SLB-50B-300PIR2 is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost. The lens is coated with Opt IR2 on both the front and back surfaces, enhancing its performance within the specified wavelength range.