The 49-947-INK is a high-quality achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 5 mm, is specifically designed for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning 400-1000nm.
The lens features a focal length (EFL) of 12.5mm, making it suitable for applications that require a compact, high-performance optical component. The lens is constructed from two types of Schott glass, N-SSK8 and N-SF56, which are renowned for their excellent optical properties.
The lens's geometry is meticulously designed, with a thickness at the edge of 2.78mm and a center thickness of 2.3mm. The lens's inner and outer radii are 0mm, indicating a planar surface. The lens's first radius of curvature (R1) is 8.57mm, while the second radius (R2) is -6.22mm, and the third radius (R3) is -21.36mm.
The lens is coated with Edmund Optics' VIS-NIR-0SP2002000 coating on both the front and back surfaces, enhancing its performance in the VIS-NIR spectrum. The lens is currently in stock and available for immediate shipping, as indicated by its weblink status.