SLB-25-120NIR2 25.0 mm Dia. x -120.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

The SLB-25-120NIR2 is a Plano-Concave Spherical Lens, part of OptoSigma's extensive catalog of optical elements. This lens, with a diameter of 25.0 mm, is designed for use in the infrared spectrum, specifically between 750 and 1550 nanometers.

The lens's geometry is characterized by its thickness at the edge, which is 3.3 mm, and its center thickness, which is 2 mm. The effective focal length (EFL) is -120.0 mm, indicating a concave shape. The radius of curvature (R1) is -62.28 mm, and the back focal length (BFL) is -121.3 mm. The lens does not have an inner or outer radius.

The lens is made of n-BK7 Schott, a popular optical glass due to its excellent optical properties and high transmittance in the visible and near-infrared regions. The lens is coated with Opt IR2, a coating specifically designed for the infrared spectrum, enhancing its performance in this range.

This lens is in stock and available for immediate purchase. For more information, please refer to the vendor's website using the provided weblink.