AC508-080-C 50.8 mm Dia. N-BAF10/N-SF6 Unmounted Achromatic Doublet; EFL=80.3mm 1050-1700nm

The AC508-080-C is a high-quality achromatic doublet lens, designed and manufactured by Thorlabs. This lens is specifically engineered for use in the 1050-1700nm wavelength range, making it an ideal choice for a wide range of applications in the infrared spectrum.

The lens features a 50.8 mm diameter, with a thickness of 12.6 mm at the edge. The inner and outer radii are 0, indicating a circular geometry. The first and second radii of curvature are 47.2 mm and -43.2 mm, respectively, while the third radius of curvature is -640.7 mm. The center thickness of the first and second components are 18 mm and 2.5 mm, respectively.

The lens is composed of two materials: N-BAF10 and N-SF6, both from Schott. These materials are known for their excellent optical properties in the infrared spectrum. The lens is coated with Thorlabs' proprietary AC1050-1700-C coating on both the front and back surfaces, further enhancing its performance in the specified wavelength range.

The lens is unmounted, providing users with the flexibility to integrate it into their own systems and setups. The "C" in the catalog number indicates that this lens is part of Thorlabs' achromatic doublet series, which is designed to minimize chromatic aberration, a common issue in lens systems.