The 69-417 is a Plano-Convex spherical lens, boasting a 6.0mm diameter and a 21.0mm focal length, 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 made from the high-quality material, n-BK7 Schott, which is known for its excellent optical properties. The front and back surfaces of the lens are coated with the advanced EDM Las V-Coat 633, enhancing its performance and durability in laser applications.
The geometry of the lens is meticulously designed, with a 1.0mm edge thickness and a 1.42mm center thickness. The lens's effective focal length (EFL) is 21.0mm, and its radius of curvature (R1) is 10.85mm. The back focal length (BFL) is 20.06mm, and both the inner and outer radii are 0mm.
This lens is a versatile and reliable choice for various applications, particularly in the realm of laser technology. Its high-quality construction, advanced coating, and precise geometry make it a valuable addition to any optical system.