47-695 6.25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=35mm VIS 0° 425-675nm

The 47-695 is a high-quality achromatic doublet lens, boasting a 6.25 mm diameter and an effective focal length (EFL) of 35mm, specifically designed for the visible light spectrum ranging from 425 to 675nm. This lens is sourced from the renowned optical vendor, Edmund Optics, and is available for purchase through their website.

The lens is constructed from two types of Schott glass: N-BK7 and N-SF5. This combination ensures superior optical performance, minimizing chromatic aberration and delivering sharp, clear images. The lens features a standard curve coating on both the front and back surfaces, further enhancing its light transmission capabilities and protecting it from environmental hazards.

The geometry of the lens is meticulously designed, with an edge thickness of 2.86mm and a center thickness of 2.3mm. The lens's inner and outer radii are optimized for its specific application, while the first and second radii (r1 and r2) are 23.14mm and -14.51mm respectively. The third radius (r3) is -38.86mm, contributing to the lens's overall optical performance.

The lens is available in a multiplet shape, offering versatility and compatibility with a wide range of optical systems. The weblink provided leads to the product page on Edmund Optics' website, where users can find more detailed specifications, pricing information, and purchasing options.