This 69-593 optical lens, sourced from Edmund Optics, is a 60mm diameter plano-convex spherical lens with a focal length of 72mm, specifically designed for use with a wavelength of 1064nm. The lens is made from the high-quality material n-BK7 Schott, ensuring excellent optical performance.
The lens features a plano-convex geometry, with a 37.22mm radius of curvature on the convex side. The center thickness of the lens is 1.6mm, while the edge thickness is 1.48mm, providing a balanced structure for various applications. The effective focal length (EFL) of the lens is 72mm, and the back focal length (BFL) is 70.97mm, making it suitable for systems where precise focus is required.
Both the front and back surfaces of the lens are coated with Edmund Optics' Las V-Coat 1064, a specialized coating designed for use with 1064nm lasers. This coating enhances the lens's performance by reducing reflection and increasing transmission, making it ideal for laser applications.