45-476 9.0mm Dia. x 18.0mm FL; VIS-NIR Coated; Plano-Convex Lens VIS-NIR 400-1000nm

This is a 9.0mm diameter by 18.0mm focal length Plano-Convex lens, specifically designed for the visible to near-infrared spectrum (VIS-NIR) range of 400-1000nm. The lens is sourced from the reputable optical vendor, Edmund Optics.

The lens is made from the high-quality material n-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including a low refractive index and low dispersion. This makes it ideal for a wide range of applications, particularly in imaging systems and laser applications.

The Plano-Convex geometry of the lens, where one side is flat and the other is curved, provides a number of benefits. It minimizes spherical aberration, a common issue in optical systems, and focuses light onto a single point, enhancing the overall image quality. The lens has an inner radius of 0mm and an outer radius of 0mm, indicating a uniform curvature.

The lens features a front and back coating of edm visnir0sp2002000, a VIS-NIR coating designed for high transmission in the 400-1000nm range. This coating enhances the lens's performance by reducing surface reflections and increasing light transmission, resulting in improved image quality and contrast.

The lens has a thickness of 1.26mm at the edge and 2.41mm at the center, providing structural integrity and resistance to deformation. The effective focal length (EFL) of the lens is 18mm, which is the distance from the lens to the point where the light rays converge.