45-413 18 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=35mm MgF2 400-700nm

The 45-413 is a high-quality achromatic doublet lens, 18 mm in diameter, with an effective focal length (EFL) of 35mm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is available for purchase on their website. The product link provided is currently valid and indicates that the item is in stock.

The lens is constructed from two types of Schott glass, N-BAF10 and N-SF10, which are renowned for their excellent optical properties. The lens features a multilayer MgF2 coating on both the front and back surfaces, which is standard for Edmund Optics and provides improved transmission and reduced reflection across the visible spectrum (400-700nm).

The lens geometry is carefully designed with a center thickness of 6.01mm, an edge thickness of 5.61mm, and inner and outer radii of 0mm. The first and second radii of curvature are 24.26mm and -16.23mm, respectively, while the third radius of curvature is -152.99mm. The lens also features an additional center thickness of 1.6mm on the back surface.

This lens is classified as a multiplet, indicating that it is composed of multiple elements. The base shape is circular, and the lens is designed to minimize chromatic aberration, a common issue in optical systems. The detailed specifications and high-quality materials make this lens suitable for a wide range of applications, including imaging systems, beam shaping, and optical instrumentation.