49-375 30 mm Dia. N-SK11/N-SF5 Achromatic Doublet; EFL=125mm VIS-NIR 400-1000nm

The 49-375 is a high-quality achromatic doublet lens from Edmund Optics, designed for use in the visible (VIS) and near-infrared (NIR) spectrum, specifically catering to the 400-1000nm range. This lens is a multiplet, meaning it is composed of multiple optical elements, in this case, two, made from N-SK11 and N-SF5 Schott glass.

The lens has a diameter of 30mm and an effective focal length (EFL) of 125mm, making it suitable for a wide range of optical applications. The geometry of the lens is carefully crafted, with an edge thickness of 5.52mm, a center thickness of 4.92mm, and a center thickness 'a' of 2.5mm. The lens's inner and outer radii are 0mm, indicating a symmetrical design.

The 49-375 lens features a front and back coating of EDm VIS-NIR 0SP200-2000, a proprietary coating from Edmund Optics that enhances its performance in the VIS-NIR spectrum. This coating helps reduce surface reflections, increase transmission, and improve overall image quality.

The lens is currently in stock and can be purchased directly from the Edmund Optics website using the provided weblink. With its robust design, high-quality materials, and advanced coatings, the 49-375 is an excellent choice for any application requiring a high-performance achromatic doublet lens in the VIS-NIR spectrum.