Abstract

The design, manufacture, and applications over wide spectral bands of hybrid refractive-diffractive lenses have been addressed recently by several authors.^1,2 Although it is fairly easy to design an achromatic hybrid lens, its optical performance is often limited by secondary color and spherochromatism. We recently achieved superachromatic designs of hybrid lenses with finite thicknesses that are color corrected at four wavelengths over a wide band covering the visible and near infrared regions of the electromagnetic spectrum.

© 1989 Optical Society of America