The 32-903 is a high-quality spherical lens, boasting a 25mm diameter and a focal length of 200mm. Manufactured by Edmund Optics, this lens is designed for use within the wavelength range of 400-700nm, making it suitable for a wide array of optical applications.
The lens is constructed from N-K5 Schott glass, a material renowned for its excellent optical properties. This is further enhanced by the application of MgF2 coatings on both the front and back surfaces, which serve to reduce reflection and increase transmission. The standard curve of these coatings ensures optimal performance across the specified wavelength range.
The geometry of the lens is meticulously designed, with a center thickness of 5mm and an edge thickness of 4.25mm. The radii of curvature for the first and second surfaces are 208.34mm and -208.34mm respectively, contributing to a back focal length of 198.35mm. The lens is circular in shape, providing a wide field of view and making it compatible with various optical systems.