SLB-25.4B-150PIR2 25.4 mm Dia. x 150.5 mm FL; Coated; Double-Convex Lens 750-1550nm

The SLB-25.4B-150PIR2 is a 25.4 mm diameter, double-convex lens with a focal length of 150.5 mm, specifically designed for use in the infrared spectrum of 750-1550nm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry.

The lens is made from n-bk7 schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence. The base shape of the lens is circular, and it features a double-convex geometry with a center thickness of 3mm and an edge thickness of 2mm. The inner and outer radii are not specified, indicating a symmetrical design.

The SLB-25.4B-150PIR2 comes with a front and back coating of opt ir2, which is an anti-reflection coating specifically designed for the infrared spectrum. This coating enhances the lens's performance by reducing surface reflections, thereby increasing the amount of light transmitted through the lens.

The lens has an effective focal length (EFL) of 150.5 mm and a back focal length (BFL) of 149.5 mm. The EFL is the distance from the lens's principal point to the focal point, while the BFL is the distance from the lens's rear nodal point to the focal point. These measurements are crucial for accurate lens placement and system design.