The 88-685-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 12.7mm, is designed for use within the visible light spectrum, specifically at a wavelength of 587.6nm. The lens features a front and back coating of EDM VIS EXT, which is a broadband anti-reflection coating designed for visible wavelengths.
The lens has a base shape of circular and a thickness at the edge of 1.72mm, while the center thickness is 4mm. The effective focal length (EFL) of the lens is 12.7mm, and the radius of curvature (R1) is 9.97mm. The back focal length (BFL) is 10.46mm, and the lens does not have an inner or outer radius.
The lens is made from N-SF11 Schott, a high index glass that offers excellent transmission in the visible and near-infrared regions. The lens is inked, which is a process where a dye is applied to the edge of the lens to indicate the orientation.
According to the vendor's website, the lens is currently in stock, making it readily available for immediate use. The link to the vendor's website is provided for further information and verification.