47-721 3 mm Dia. N-LAK22/N-SF6 Achromatic Doublet; EFL=4.5mm MgF2 400-700nm

The 47-721 is a high-quality achromatic doublet lens, sourced from the renowned optical components manufacturer, Edmund Optics. This lens, with a 3 mm diameter, is designed for use in the visible light spectrum, specifically between 400 and 700 nanometers.

The lens is a multiplet, meaning it is composed of multiple optical elements. The specific configuration includes two materials, N-LAK22 and N-SF6, both from Schott. These materials are chosen for their excellent optical properties, contributing to the lens's overall performance.

The geometry of the lens is carefully designed to optimize its functionality. The effective focal length (EFL) is 4.5mm, making it suitable for applications that require a compact, high-performance lens. The lens has a thickness of 2.48mm at the edge and 2mm at the center, with an inner radius and outer radius of 0. The radii of curvature for the first and second surfaces are 3.16mm and -2.23mm, respectively, while the third surface has a radius of curvature of -7.88mm.

The lens is coated with EDM MgF2 std curve on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission in the visible light spectrum. The coating status is currently in stock, ensuring quick and reliable delivery.