47-638 25 mm Dia. N-SSK8/N-SF10 Achromatic Doublet; EFL=60mm VIS 0° 425-675nm

The 47-638 is a high-quality achromatic doublet lens, boasting a 25 mm diameter and an effective focal length (EFL) of 60 mm, specifically designed for the visible light spectrum ranging from 425 to 675 nm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase through their official website.

The lens is constructed from two types of Schott glass, N-SSK8 and N-SF10, which are carefully selected to minimize chromatic aberration, a common issue in lens systems. The front and back surfaces of the lens are coated with the EDM VIS-0 standard curve coating, further enhancing its performance by reducing surface reflections and improving light transmission.

The lens geometry is meticulously designed, with a thickness of 8.78 mm at the edge, a central thickness of 9 mm, and an inner radius of 0 mm. The first and second radii of curvature are 31.94 mm and -29.95 mm, respectively, while the third radius of curvature is -1029.79 mm. This complex geometry is engineered to deliver superior optical performance.

The 47-638 is a multiplet lens, meaning it is composed of multiple elements. This design allows for more precise control over optical aberrations, resulting in sharper images and more accurate color reproduction. The lens is currently in stock, ready for immediate shipping and integration into your optical system.