47-694-INK 6.25 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=30mm VIS 0° 425-675nm

The 47-694-INK is a high-quality achromatic doublet lens, boasting a 6.25 mm diameter and an effective focal length (EFL) of 30 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 directly from their website.

The lens is constructed from two types of glass, N-BK7 and N-SF5, both from Schott, ensuring excellent optical performance. The lens features a sophisticated design with three radii of curvature (r1, r2, and r3) and varying thicknesses (edge, center, and center a) to minimize chromatic aberration and deliver sharp, clear images.

The lens is coated with the EDM VIS-0 STD curve on both the front and back surfaces, further enhancing its optical performance by reducing reflection and increasing transmission. The lens is circular in shape and classified as a multiplet due to its complex construction.

The 47-694-INK is a versatile lens suitable for a wide range of applications, including but not limited to, machine vision, scientific research, and industrial inspection. With its robust design and high-performance characteristics, this lens is an excellent choice for users seeking a reliable and efficient optical solution.