The 84-205 is a Plano-Convex spherical lens, part of the extensive catalog of optical elements sourced from Edmund Optics. This lens boasts a 6.0mm diameter and a focal length of 6.0mm, designed for use with a wavelength of 1550nm.
The lens is constructed from n-sf11 Schott, a high-index glass with excellent optical properties. The base shape is circular, and the lens features an edge thickness of 1.42mm and a center thickness of 2.5mm. The effective focal length (EFL) is 6.0mm, and the front radius (R1) is 4.71mm. The back focal length (BFL) is 4.6mm, and both the inner and outer radii are 0mm.
The 84-205 is coated with Edmund Optics' Las V-Coat 1550, a specialized coating designed for laser applications at 1550nm. This coating is applied to both the front and back surfaces of the lens, ensuring optimal performance in its intended use.