63-713-INK 40 mm Dia. N-BK7/N-SF5 Achromatic Doublet; EFL=100mm VIS 0° 425-675nm

The 63-713-INK is a high-quality achromatic doublet lens, boasting a 40 mm diameter and an effective focal length (EFL) of 100 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.

This achromatic doublet is composed of two distinct materials: N-BK7 from Schott and N-SF5 from Schott. These materials have been carefully selected and arranged to minimize chromatic aberration, a common issue in optical systems where different wavelengths of light are focused at different points. By effectively compensating for this aberration, the 63-713-INK provides clear, sharp images across the entire visible light spectrum.

The lens features a sophisticated geometry, with a thickness of 7.92 mm at the edge, a central thickness of 10 mm, and an inner radius of 0 mm. The outer radius is also 0 mm, and the lens has a base shape that is circular. The first radius of curvature (r1) is 46.73 mm, while the second radius (r2) is -50.61 mm, and the third radius (r3) is -341.7 mm.

The 63-713-INK is equipped with standard EDM VIS-0 coatings on both the front and back surfaces. These coatings are designed to enhance the lens's performance in the visible light spectrum, providing improved transmission and reduced reflection.