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

The 63-713 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 reputable optical vendor, Edmund Optics, and is available for purchase through their website.

The lens is constructed from two types of glass: N-BK7 and N-SF5, both from Schott, ensuring excellent optical performance. The front and back surfaces of the lens are coated with the EDM VIS-0 standard curve coating, providing improved light transmission and protection against environmental factors.

The lens geometry is carefully designed with a 7.92 mm thickness at the edge, a 10 mm thickness at the center, and a 3 mm thickness at the center a. The radii of the curvature are R1 = 46.73 mm, R2 = -50.61 mm, and R3 = -341.7 mm, contributing to the lens's superior optical properties.

This achromatic doublet lens is a multiplet, meaning it is composed of multiple optical elements. Its design helps correct chromatic aberration, a common issue in optical systems where different wavelengths of light focus at different points. By minimizing this aberration, the 63-713 provides clear, sharp images across the entire visible light spectrum.