ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)
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Issue
vol 67 / February, 2024
Article
UDC 535.317

CORRECTION OF SPHERICAL ABERRATION AND CHROMATISM IN SINGLE LENS AND DOUBLET BY INTRODUCTION OF AXIAL GRADIENT OF THE REFRACTIVE INDEX

A. L. Sushkov
Bauman Moscow State Technical University,Department of Laser and Optoelectronic systems; Associate Professor


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Abstract. Theoretical models of spherical and chromatic aberration correction in single lens and in doublet are considered in the case of axial inhomogeneity of the refractive index in the lenses. It is shown that chromatism in a single lens may be corrected with anomalous dispersion of refractive index gradient. In a doublet, the correction is possible both with normal and abnormal dispersion of the gradient.
Keywords: lens, doublet, chromatic aberration of position, spherochromatism, refractive index inhomogeneity, inhomogeneity of refraction index gradient