67-601 6mm Dia. x 6mm FL; NIR II Coated; Double-Convex Lens NIR II 750-1550nm

The 67-601 is a high-quality double-convex lens, designed and manufactured by Edmund Optics, a leading global provider of optical components. This lens boasts a 6mm diameter and a focal length of 6mm, making it a versatile choice for a wide range of applications.

The lens is constructed from n-SF5 Schott, a high-performance glass material known for its excellent optical properties. This material is particularly suited for use in the near-infrared (NIR) spectrum, with a wavelength of 587.6nm. The lens is coated with Edmund Optics' proprietary NIR-II standard curve coating on both the front and back surfaces, further enhancing its performance in the NIR spectrum.

The geometry of the lens is carefully designed to optimize its optical performance. The lens has an edge thickness of 1.29mm and a center thickness of 2.54mm, providing a balance between robustness and compactness. The front and back radii of the lens are 7.59mm and -7.59mm respectively, resulting in a back focal length of 5.19mm. The lens has no inner or outer radius, indicating a uniform thickness.

This lens is a spherical lens, meaning it has a curved surface that is a portion of a sphere. This design provides excellent image quality and low distortion, making it ideal for imaging applications.