62-485-INK 12.5 mm Dia. N-BAF10/N-SF10 Negative Achromatic Doublet; EFL=-20mm VIS 0° 425-675nm

The 62-485-INK is a high-quality negative achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens boasts a 12.5 mm diameter and a focal length of -20mm, making it suitable for a wide range of applications.

The lens is composed of two types of glass, N-BAF10 and N-SF10, both from Schott, a leading manufacturer of optical glass. This combination ensures excellent optical performance, minimizing chromatic aberration and delivering sharp, clear images across the visible spectrum, specifically within the range of 425-675nm.

The lens features a standard curvature coating on both the front and back surfaces, denoted as 'edm vis-0 std curve'. This coating enhances the lens's durability and resistance to environmental factors, while also reducing surface reflections and improving light transmission.

The geometry of the lens is carefully designed with precision. The edge thickness measures 7.01mm, while the center thickness is 2mm. The lens also features a central thickness 'a' of 3.5mm. The inner and outer radii are 0mm, indicating a circular shape.

The lens is available for purchase through the Edmund Optics website, and the link provided is valid and indicates the product is in stock, ensuring quick and efficient procurement for your optical needs.