The 88-802-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 6.0mm, is designed for use in the visible light spectrum, specifically at a wavelength of 587.6nm.
The lens features a YAG-BBAR coating on both the front and back surfaces. This coating, which stands for Yttrium Aluminum Garnet - Broad Band Anti-Reflection, is designed to reduce reflection and increase transmission of light over a broad spectrum, in this case, from 500nm to 1100nm.
The lens has a thickness of 1.0mm at the edge and 1.42mm at the center. The Effective Focal Length (EFL) is 21.0mm, and the Radius of Curvature (R1) is 10.85mm. The Back Focal Length (BFL) is 20.06mm, and the lens does not have an Inner Radius or an Outer Radius.
The lens is made of N-BK7 Schott, a common optical glass with a high refractive index and low dispersion. This makes it suitable for a wide range of optical applications.