SLB-50B-250PIR1 50.0 mm Dia. x 251.0 mm FL; Coated; Double-Convex Lens 633-1064nm

The SLB-50B-250PIR1 is a high-quality lens offered by OptoSigma, designed with a 50.0 mm diameter and a focal length of 251.0 mm. This lens is a double-convex type, featuring a base shape of a circle, which is ideal for a wide range of optical applications.

The lens is made from n-bk7 schott, a popular material in the optical industry due to its excellent optical properties. The geometry of the lens includes a thickness edge of 3 mm and a thickness center of 5.4 mm, providing a robust structure. The effective focal length (EFL) is 251 mm, and the radii of curvature are r1 = 259.5 mm and r2 = -259.5 mm, contributing to its double-convex shape.

The SLB-50B-250PIR1 comes with a broadband anti-reflection coating, specifically designed for the infrared region (IR) from 633 to 1064 nm, indicated by the "opt ir1" coating on both the front and back surfaces. This coating enhances the lens' performance by reducing surface reflections and increasing transmission, thereby improving the overall system efficiency.