49-935-INK 5 mm Dia. N-SSK8/N-SF56 Achromatic Doublet; EFL=12.5mm VIS 0° 425-675nm

The 49-935-INK is a high-quality Achromatic Doublet Lens, sourced from the renowned optical vendor, Edmund Optics. This lens boasts a 5 mm diameter and an effective focal length (EFL) of 12.5 mm, specifically designed for the visible light spectrum, spanning 425-675 nm.

The lens is meticulously crafted from two distinct materials, N-SSK8 and N-SF56, both from the reputable Schott glass catalog. This combination ensures superior optical performance, minimizing chromatic aberration and delivering sharp, clear images.

The 49-935-INK 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 lens geometry is intricately designed, with a thickness of 2.78 mm at the edge, 2.3 mm at the center, and 1 mm at the center 'a'. The inner and outer radii are 0, and the lens curvature is defined by radii 'r1' (8.57 mm), 'r2' (-6.22 mm), and 'r3' (-21.36 mm).

This lens is available for purchase directly from the Edmund Optics website, with a current status indicating it is in stock. For more detailed specifications and purchasing information, please refer to the provided weblink.