49-786 12.7 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=25.4mm VIS-NIR 400-1000nm

This is a high-quality achromatic doublet lens from the renowned optical vendor, Edmund Optics. The lens, with the catalog number 49-786, is designed for use in the visible to near-infrared spectrum, spanning 400 to 1000nm. The lens is a crucial component in various optical systems, offering superior image quality and color correction.

The lens is constructed from two types of Schott glass, N-SSK8 and N-SF56, which are renowned for their excellent optical properties. The use of these materials ensures high transmission and low dispersion, resulting in clear, sharp images. The lens has a diameter of 12.7mm and an effective focal length (EFL) of 25.4mm, making it suitable for a wide range of applications.

The lens features a sophisticated geometry, with a central thickness of 4mm and edge thickness of 4.1mm. The radii of curvature are R1 = 16.77mm, R2 = -13.63mm, and R3 = -50.73mm. This geometry is designed to minimize spherical aberration and other optical aberrations, further enhancing the lens's performance.

The lens is coated with Edmund Optics' VIS-NIR coating (edm visnir0sp2002000), which is applied to both the front and back surfaces. This coating enhances the lens's transmission and reduces reflection, improving its overall light efficiency.

The lens is available for purchase directly from the Edmund Optics website, and the link provided is valid and indicates that the lens is in stock. This ensures quick and easy access to this high-quality optical component.