The 38-501-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 to near-infrared spectrum, specifically between 400 and 1000nm.
The lens features a front and back coating of edm visnir0sp2002000, which is a broadband anti-reflection coating optimized for the visible to near-infrared range. This coating helps to reduce surface reflections, thereby increasing the amount of light transmitted through the lens.
The lens has a thickness of 1.29mm at the edge and 3.8mm at the center. The effective focal length (EFL) is 17.5mm, and the radius of curvature (R1) is 9.05mm. The back focal length (BFL) is 15mm, and the lens has no inner or outer radius.
This lens is made of n-BK7 Schott, a popular optical glass due to its excellent optical properties and relatively low cost. It is widely used in various applications, including imaging systems, beam shaping, and collimation.
The item data indicates that this lens is in stock, and the web link provided leads to the product page on the Edmund Optics website, where more information and specifications can be found.