67-513 12.7mm Dia. x 44.5mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm

The 67-513 is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 12.7mm and a focal length of 44.5mm, making it suitable for a wide range of applications. The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion.

The lens features a standard NIR-II coating on both the front and back surfaces. This coating enhances the lens's performance in the near-infrared spectrum, specifically between 750nm and 1550nm. The coating is designed to reduce reflection and increase transmission, thereby improving the overall efficiency and quality of the optical system in which the lens is used.

The geometry of the lens is also noteworthy. It has an edge thickness of 1.31mm and a center thickness of 1.7mm. The lens's inner radius is 0, while the outer radius is also 0, indicating a plano surface on one side and a curved surface on the other. The radius of curvature of the curved surface is 51.68mm, and the back focal length is 98.88mm.