The 62-571-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 at a wavelength of 587.6nm. The lens has 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 1.72mm at the edge and 5mm at the center, with a back focal length of 47.5mm and an effective focal length of 50.8mm. The radius of curvature for the first surface is 26.25mm. The lens is made of n-bk7 schott, a common material for optical lenses due to its excellent optical properties.
The lens is inked, which is a process that adds a dye or pigment to the surface of the lens. This can be done for a variety of reasons, such as to mark the lens for identification or to reduce reflections. The weblink for this lens is valid and indicates that it is in stock, making it readily available for purchase and use.