The 67-171 is a Plano-Convex Spherical Lens, sourced from the renowned optical components vendor, Edmund Optics. This lens boasts a 9.0mm diameter and a focal length of 54.0mm, making it suitable for a wide range of applications. The lens is fabricated from N-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility.
The lens features a front and back coating of EDM NIR-I STD Curve, a specialized coating designed for use in the near-infrared spectrum, specifically between 600-1050nm. This coating enhances the lens's performance in the NIR range, providing improved transmission and reduced reflection.
The lens's geometry is another notable feature. It has a thickness of 1.63mm at the edge and 2.0mm at the center, providing a robust structure while maintaining a sleek profile. The inner and outer radii are 0, indicating a plano surface on one side and a curved surface on the other. The radius of curvature of the curved surface is 27.91mm, and the back focal length is 52.69mm.