The 67-563-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 25.4mm and a center thickness of 7mm, with an edge thickness of 2.43mm. The lens's effective focal length (EFL) is 25.4mm, and the front radius (R1) is 19.93mm. The back focal length (BFL) is 21.48mm, and the lens does not have an inner or outer radius.
This lens is made from n-SF11 Schott, a material known for its excellent optical properties. The lens is coated with EDM NIR-II std curve on both the front and back surfaces, enhancing its performance in the near-infrared (NIR) spectrum, specifically between 750nm and 1550nm.
The lens is inked, a process that typically involves applying a dye or other marking substance to the edge of the lens for identification purposes. This does not affect the lens's optical performance but can be useful for inventory management and tracking.
Please note that the provided weblink is valid and indicates that the lens is in stock, making it readily available for your optical needs.