The 69-533 is a Plano-Convex Spherical Lens, sourced from Edmund Optics, boasting a 9.0mm diameter and a 22.0mm focal length. This lens is designed for use with a 980nm wavelength, featuring a V-coat for both the front and back surfaces, ensuring optimal performance in laser applications.
The lens is crafted from n-BK7 Schott, a high-quality optical glass, and has a center thickness of 20.73mm, with an edge thickness of 1mm. The lens's design includes a 11.37mm radius on the curved surface, resulting in a back focal length of 20.73mm. The lens's geometry is circular, with no inner or outer radius specified, indicating a uniform curvature.
The V-coat applied to both surfaces of the lens is Edmund Optics' proprietary coating, designed specifically for 980nm lasers. This coating enhances the lens's performance by reducing reflection and increasing transmission, making it ideal for high-power laser applications.