47-673 6.25 mm Dia. N-BASF64/N-BK7/N-BASF64 Steinheil Achromatic Triplet; EFL=12.5mm MgF2 400-700nm

The 47-673 is a high-quality achromatic triplet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a 6.25 mm diameter, is designed for use in the visible light spectrum, specifically between 400-700 nm.

The lens features a focal length of 12.5 mm, making it suitable for a wide range of optical applications. It is constructed from three elements, made from N-BASF64 and N-BK7 Schott glass, which are known for their excellent optical properties.

The lens geometry is meticulously designed, with an inner radius of 0 and an outer radius of 0, ensuring optimal light transmission. The edge thickness is 7.7 mm, while the center thickness is 2 mm, providing robustness and stability to the lens.

The lens is coated with EDM MgF2 std curve on both the front and back surfaces, enhancing its light transmission capabilities and protecting it from environmental factors. The lens shape is a multiplet, which is a combination of multiple lenses, designed to correct optical aberrations and improve image quality.