The 84-210 is a Plano-Convex Spherical Lens, designed with a 6.0mm diameter and a focal length of 18.0mm, specifically engineered for use with a 1550nm wavelength. This lens is sourced from Edmund Optics, a renowned vendor in the optical industry, and is currently in stock, as indicated by its weblink status.
The lens is constructed from n-BK7 Schott, a high-quality optical glass, and features a V-Coat 1550nm coating on both the front and back surfaces. This coating enhances the lens's performance in laser applications, providing improved durability and efficiency.
The geometry of the lens includes a thickness of 0.9mm at the edge and 1.42mm at the center, with an effective focal length (EFL) of 18.0mm. The lens's design includes a radius of curvature (R1) of 9.3mm and a back focal length (BFL) of 17.07mm. The lens's base shape is circular, and it does not have any inner or outer radii.