62-487-INK 12.5 mm Dia. N-BK7/N-SF5 Negative Achromatic Doublet; EFL=-35mm VIS 0° 425-675nm

The 62-487-INK is a high-quality negative achromatic doublet lens, sourced from the renowned optical vendor, Edmund Optics. This lens, with a diameter of 12.5 mm, is designed for use in the visible light spectrum, specifically between 425 and 675 nanometers. The lens boasts an effective focal length (EFL) of -35mm, making it suitable for a wide range of optical applications.

The lens is composed of two materials: N-BK7 from Schott and N-SF5 from Schott. These materials are chosen for their excellent optical properties, contributing to the lens's high performance. The lens features a standard curve coating on both the front and back surfaces, denoted as 'edm vis-0 std curve'. This coating enhances the lens's durability and optical performance.

The lens geometry is intricately designed, with a thickness of 4.74mm at the edge, 2mm at the center, and 1.56mm at the center-A. The lens's inner and outer radii are 0, indicating a flat surface. The curvature radii (r1, r2, and r3) are -21.66mm, 17.48mm, and 50.54mm, respectively, contributing to the lens's achromatic properties.

The lens is currently in stock and available for immediate purchase. For more information, including pricing and detailed specifications, please refer to the provided weblink.