49-783-INK 25.4 mm Dia. N-BAK1/N-SF15 Achromatic Doublet; EFL=101.6mm VIS 0° 425-675nm

The 49-783-INK is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 25.4 mm, is designed for use in the visible light spectrum, specifically between 425 and 675 nanometers. The lens boasts an effective focal length (EFL) of 101.6 mm, making it suitable for a wide range of optical applications.

The lens is constructed from two types of glass, N-BAK1 and N-SF15, both from Schott. This combination helps to correct chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points. The front and back surfaces of the lens are coated with EDM VIS-0 standard curve coatings, which further enhance its performance by reducing reflection and increasing transmission.

The lens geometry is carefully designed to optimize its optical performance. It has a thickness of 6.32 mm at the edge, with the inner and outer radii being 0. The center thickness is 5 mm, and the center a thickness is 3 mm. The lens's base shape is circular, and it is classified as a multiplet due to its construction from multiple glass elements.

The lens is currently in stock and can be purchased directly from the Edmund Optics website using the provided weblink. With its high-quality construction, precise design, and wide range of applications, the 49-783-INK is an excellent choice for any optical system that requires a high-performance achromatic doublet lens.