The 88-683-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 12.0mm, is designed for use within the visible light spectrum, specifically between 350-700nm. The lens has a front and back coating of edm vis ext, which enhances its performance within this spectrum.
The lens has a base shape of a circle and a thickness at the edge of 2.08mm, transitioning to a thickness at the center of 2.5mm. The effective focal length (EFL) of this lens is 84mm, and the radius of curvature (R1) is 43.43mm. The back focal length (BFL) is 82.39mm, and the lens does not have an inner or outer radius.
The material of this lens is n-bk7 schott, a common material for optical lenses due to its high refractive index and low dispersion. The lens is designed to work with a wavelength of 587.6nm, which is the wavelength of the green line in the visible light spectrum.