65-549 9 mm Dia. N-BASF64/N-SF66 Achromatic Doublet; EFL=9mm MgF2 400-700nm

The 65-549 is a high-quality achromatic doublet lens, sourced from the renowned optical component vendor, Edmund Optics. This lens is specifically designed for use in the 400-700nm spectral range, making it suitable for a wide range of optical applications.

The lens features a 9mm diameter and a focal length of 9mm, indicated by its EFL (Effective Focal Length) value. The lens is constructed from two elements, made from N-BASF64 and N-SF66 Schott glass, respectively. This combination helps to minimize chromatic aberration, a common issue in optical systems, thereby improving the overall image quality.

The lens geometry is carefully designed to ensure optimal performance. It has an inner radius of 0mm and an outer radius of 0mm, with a central thickness of 6.35mm. The edge thickness is 5.73mm, and the lens features three radii of curvature (r1, r2, and r3) that are -6.87mm, -5mm, and -14.16mm, respectively. These parameters contribute to the lens's excellent optical properties.

The lens is coated with EDM MgF2 std curve on both the front and back surfaces. This coating enhances the lens's transmission in the spectral range of interest and provides protection against environmental factors, thereby increasing the lens's lifespan and reliability.

The lens is currently in stock and available for immediate purchase through the Edmund Optics website, as indicated by its weblink status. For more detailed information, users are encouraged to visit the provided weblink.