The 38-318-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 25.4mm, is designed for use in the visible light spectrum, specifically between 425-675nm. The lens features a front and back coating of edm vis-0 std curve, which is a standard coating for this type of lens.
The lens has a thickness of 1.54mm at the edge and 5.9mm at the center, with an effective focal length (EFL) of 40mm. The radius of curvature for the first surface (R1) is 20.67mm, and the back focal length (BFL) is 36.11mm. The lens is made of n-bk7 schott, a popular optical glass material known for its excellent optical properties.
This lens is inked, which is a process where a dye is applied to the edge of the lens to indicate its orientation. The weblink associated with this item is valid and indicates that the lens is in stock, making it readily available for immediate use.