The 49-910-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 18.0mm, is designed for use in the near-infrared (NIR) spectrum, specifically between 600-1050nm. The lens features a front and back coating of edm nir-i std curve, which is a standard coating for NIR applications.
The lens has a thickness of 1.53mm at the edge and 4.0mm at the center, with an effective focal length (EFL) of 22.5mm. The radius of curvature for the first surface (R1) is 17.66mm, and the back focal length (BFL) is 20.26mm. The lens is made from n-sf11 Schott, a material known for its excellent optical properties in the NIR spectrum.
The lens is in stock and available for immediate purchase. For more information, please refer to the vendor's website at https://www.edmundoptics.com/f/nir-i-coated-plano-convex-pcx-lenses/13459/.