The 38-450-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 12.5mm, is designed for use in the visible light spectrum, specifically between 350-700nm, making it suitable for a wide range of optical applications.
The lens features a front and back coating of EDM VIS EXT, which is a broadband anti-reflection coating designed for use in the visible spectrum. This coating helps to reduce surface reflections, thereby increasing the amount of light transmitted through the lens.
The geometry of the lens includes a thickness at the edge of 1.29mm and a thickness at the center of 3.8mm. The effective focal length (EFL) of the lens is 17.5mm, and the radius of curvature (R1) is 9.05mm. The back focal length (BFL) is 15mm, and the lens does not have an inner or outer radius.
The lens is made from N-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost. This material is known for its low dispersion and high Abbe number, making it an ideal choice for many optical applications.