45-903 40mm Dia. x 200mm FL; VIS-NIR Coated; DCX N-K5 Lens VIS-NIR 400-1000nm

The 45-903 is a high-quality spherical lens, boasting a 40mm diameter and a focal length of 200mm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is designed for use within the visible to near-infrared spectrum (VIS-NIR), specifically catering to the wavelength of 587.6nm.

The lens is constructed from the high-performance material N-K5, a type of glass manufactured by Schott. This material is known for its excellent optical properties, making it an ideal choice for a wide range of applications. The lens features a convex-convex base shape, with a center thickness of 8mm and an edge thickness of 6.07mm, providing a robust and durable structure.

The 45-903 lens is equipped with a VIS-NIR coating on both the front and back surfaces. This coating, denoted as 'edm visnir0sp2002000', is designed to enhance the lens' performance within the VIS-NIR spectrum, reducing surface reflections and improving transmission.

The lens' geometry includes an effective focal length (EFL) of 200mm, a back focal length (BFL) of 197.36mm, and radii of curvature of 207.93mm and -207.93mm for the first and second surfaces, respectively. The lens has no inner or outer radius, indicating a continuous curvature from edge to edge.