DIFFRACTIVE-REFRACTIVE EYE LENSES WITH BINARY STRUCTURES
G. A. Lenkova
Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, prosp. Akademika Koptyuga 1, Novosibirsk 630090
Keywords: интраокулярные линзы, дифракционно-рефракционные хрусталики глаза, бинарные дифракционные структуры, зрачок, скважность структуры, глубина фокуса, intraocular lenses, diffractive-refractive lens, binary diffraction structures, pupil, porosity of structure, depth of focus
Abstract
The paper presents a brief analytical review of papers dealing with the use of the simplest binary-phase diffraction structures in multifocal artificial eye lenses (intraocular lenses) to increase the focal area. The results of theoretical studies of the influence of spherical aberrations of the eye, the optical power of the diaphragm (diameter of the pupil), and the porosity of the structure on the depth of focus (limits of clear vision) are given. The distribution of intensity in diffraction orders (foci) in the simplest binary diffractive-refractive intraocular lenses is analyzed.
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