49-474 12mm Dia. x 12mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm

The 49-474 is a high-quality double-convex lens, 12mm in diameter and focal length, specifically designed for use within the near-infrared (NIR) spectrum of 600-1050nm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is currently in stock with valid weblinks provided for easy reference.

The lens boasts a base shape of a circle and is constructed from the high-performance glass material, n-SF5, produced by Schott. This material is well-known for its excellent transmittance and low auto-fluorescence within the NIR range. The lens features a 1.4mm thickness at the edge, increasing to 3.85mm at the center, providing robustness and high optical performance.

The 49-474 lens has a focal length (EFL) of 12mm and features front and back radii of 15.34mm and -15.34mm, respectively. The back focal length (BFL) measures 10.79mm, offering flexibility for various optical system configurations. The lens has no inner or outer radius specified, indicating a continuous curvature from edge to edge.

Both the front and back surfaces of the lens are coated with the EDM NIR-I standard curve coating, enhancing its performance within the NIR spectrum. This coating ensures high transmission, low reflectance, and excellent durability, making the 49-474 lens an ideal choice for applications such as biomedical imaging, laser beam shaping, and spectral analysis.