PAC070 38.1 mm Dia. N-BAF10/N-SF10 Visible Achromatic Doublet; EFL=76.2mm MgF2 400-700nm

The PAC070 is a high-quality achromatic doublet lens from the renowned optical vendor MKS/Newport. This lens, with a diameter of 38.1 mm, is designed for use in the visible spectrum, specifically between 400 and 700 nm.

The lens is a multiplet, meaning it is composed of multiple elements. The primary materials used in its construction are N-BAF10 and N-SF10, both from Schott, ensuring superior optical performance. The lens features an effective focal length (EFL) of 76.2 mm, making it suitable for a wide range of optical applications.

The PAC070's geometry is carefully designed to optimize its performance. It has a thickness of 9.9 mm at the edge, with the inner and outer radii being 0. The lens's centers have varying thicknesses, with the first center being 11 mm and the second being 3 mm, resulting in a total center thickness of 14 mm. The curvature of the lens is also precisely controlled, with radii of 51.457 mm and -32.379 mm for the first and second surfaces, respectively, and a -378.029 mm radius for the third surface.

The lens is coated with MgF2, a broadband antireflection coating that enhances its performance in the visible spectrum. This coating is applied to both the front and back surfaces of the lens, ensuring optimal light transmission and minimal reflective losses.