49-356-INK 25 mm Dia. N-BAF10/N-SF10 Achromatic Doublet; EFL=50mm VIS-NIR 400-1000nm

The 49-356-INK is a high-quality achromatic doublet lens, designed and manufactured by Edmund Optics. This lens, with a diameter of 25 mm, is specifically engineered for use in the visible (VIS) and near-infrared (NIR) spectrum, spanning 400 to 1000 nm.

The lens features a focal length (EFL) of 50 mm, making it suitable for a wide range of optical applications. The achromatic design ensures that the lens effectively compensates for chromatic aberration, a common issue in optical systems where different wavelengths of light focus at different points.

The lens is constructed from two types of glass, N-BAF10 and N-SF10, both from Schott. These materials are known for their excellent optical properties, contributing to the lens's high performance. The lens is coated with EDm VIS-NIR 0SP2002000 on both the front and back surfaces, further enhancing its performance in the specified wavelength range.

The lens geometry includes a thickness of 8.79 mm at the edge, a center thickness of 9 mm, and a center thickness 'a' of 2.5 mm. The lens's base shape is circular, and it features a multifocal design with radii of curvature of 34.53 mm, -21.98 mm, and -214.63 mm.

According to the vendor's website, this item is currently in stock, making it readily available for immediate use in your optical system designs. For more information, including detailed specifications and purchasing options, please refer to the provided weblink.