AC254-300-C 25.4 mm Dia. N-SF2/N-SF6 Unmounted Achromatic Doublet; EFL=299.9mm 1050-1700nm

The AC254-300-C is a high-quality achromatic doublet lens, designed and manufactured by Thorlabs. This lens, with a diameter of 25.4 mm, is specifically engineered for use in the 1050-1700nm wavelength range, making it suitable for a wide range of applications in the near-infrared spectrum.

The lens is constructed from two types of Schott glass, N-SF2 and N-SF6, which are renowned for their excellent optical properties. The use of these materials ensures high transmission and low dispersion, resulting in superior image quality. The lens features a focal length of 299.9mm, as indicated by its EFL (Effective Focal Length) value, which is a critical parameter for determining the lens's magnification and field of view.

The lens geometry is characterized by its base shape, which is circular, and its edge thickness of 6.2 mm. The lens also features three radii of curvature (r1, r2, and r3) and two central thicknesses, which contribute to its overall optical performance. The lens is unmounted, providing users with the flexibility to integrate it into their own optical systems.

The lens is coated with Thorlabs' AC1050-1700-C coating on both the front and back surfaces. This anti-reflection coating is designed to minimize surface reflections and increase transmission in the 1050-1700nm wavelength range, further enhancing the lens's performance.

According to the vendor's information, the lens is currently in stock, and users can access more details and purchase information through the provided weblink.