AC508-250-C-ML 50.8 mm Dia. N-BAF10/N-SF6HT Mounted Achromatic Doublet; EFL=250mm 1050-1700nm

The AC508-250-C-ML is a multiplet lens with a 50.8 mm diameter, specifically designed for use in the 1050-1700nm wavelength range. This lens is manufactured by Thorlabs, a leading vendor in the field of optical components.

The lens is composed of two materials, N-BAF10 and N-SF6HT, both from Schott. The N-BAF10 material is used for the first element, while the second element is made of N-SF6HT. This combination helps to achieve the desired achromatic properties, minimizing chromatic aberration across the specified wavelength range.

The lens has a focal length of 250mm, as indicated by the EFL (Effective Focal Length) parameter. This makes it a medium to long-focus lens, suitable for applications that require moderate magnification.

The lens geometry is characterized by three radii (r1, r2, r3) and two thicknesses (thickness edge, thickness center 1, thickness center 2). The radii are 78.6mm, -95.9mm, and 230.7mm, while the thicknesses are 10.2mm, 10mm, and 3mm, respectively. These parameters define the lens's curvature and overall shape, which are crucial for its optical performance.

The lens is coated with THo AC1050-1700-C, a coating specifically designed for the 1050-1700nm range. This coating enhances the lens's transmission and reduces reflection, thereby improving its overall efficiency.

The lens is mounted, which means it is ready to be integrated into an optical system without the need for additional mounting components. This feature saves time and simplifies the assembly process.

According to Thorlabs' website, the lens is currently in stock, indicating that it is readily available for purchase and delivery.