49-954 15 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=60mm VIS-NIR 400-1000nm

The 49-954 is a high-quality achromatic doublet lens, designed and manufactured by Edmund Optics. This lens, with a diameter of 15 mm, is specifically engineered for use within the visible to near-infrared spectrum, spanning from 400 to 1000 nm. The lens boasts an effective focal length (EFL) of 60 mm, making it suitable for a wide range of optical applications.

The lens is constructed from two types of glass, N-BK7 and N-SF5, both from Schott. These materials are carefully selected for their optical properties, contributing to the lens's overall performance. The lens's geometry is meticulously designed, with a central thickness of 3.5 mm and edge thickness of 4.37 mm, ensuring optimal light transmission and minimal distortion.

The 49-954 lens features a front and back coating of EDm VIS-NIR 0SP2002000, a proprietary coating developed by Edmund Optics. This coating enhances the lens's durability and performance, reducing surface reflections and improving light transmission.

The lens's shape, a multiplet, is a result of its construction from two different materials. This shape contributes to the lens's achromatic properties, correcting chromatic aberrations and providing sharper images. The lens's inner and outer radii are 0, indicating a symmetrical design that further contributes to its optical performance.