The 69-418 is a Plano-Convex spherical lens, boasting a 6.0mm diameter and a focal length of 36.0mm, specifically designed for use with a 633nm wavelength. This lens is sourced from the renowned optical vendor, Edmund Optics, and is currently in stock, as indicated by its weblink status.
The lens is constructed from the high-quality material, n-BK7 Schott, which is known for its excellent optical properties. The geometry of the lens includes a thickness of 1.36mm at the edge, gradually increasing to 1.6mm at the center, and an effective focal length (EFL) of 36.0mm. The radius of curvature (R1) is 18.61mm, and the back focal length (BFL) is 34.95mm.
The 69-418 features a front and back coating of EDM Las V-Coat 633, which is designed to enhance the lens' performance in laser applications. This coating ensures high transmission and low reflection at the specified wavelength, making it ideal for use in laser systems.