49-301 5 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=15mm VIS-NIR 400-1000nm

The 49-301 is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens is specifically designed for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning 400-1000nm. The lens is a multiplet, meaning it is composed of multiple optical elements, which in this case are made from N-BAF10 and N-SF10 Schott glass.

The lens has a diameter of 5mm and an effective focal length (EFL) of 15mm, making it a compact yet powerful optical component. The geometry of the lens is carefully crafted, with an edge thickness of 2.22mm, an inner radius of 0, and an outer radius of 0. The first radius of curvature (r1) is 10.67, while the second radius (r2) is -6.46, and the third radius (r3) is -53.57. The center thickness of the lens is 1.55mm, and the center thickness of the first optical element (r1) is 1.03mm.

The lens is coated with a broadband anti-reflection coating, specifically the EDM VIS-NIR 0SP2002000 coating, on both the front and back surfaces. This coating enhances the lens's performance by reducing surface reflections, thereby increasing transmission and minimizing flare and ghosting.

The 49-301 is currently in stock and available for immediate purchase from the Edmund Optics website. With its high-quality construction, broad spectral range, and compact design, this lens is an excellent choice for a wide range of optical applications.