Open AccessZoom system by rotation of toroidal lenses
Author(s) -
Nicola Bregenzer,
Martin Bawart,
Stefan Bernet
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.383090
Subject(s) - optics , zoom , toroid , rotation (mathematics) , saddle , physics , zoom lens , diffraction , geometry , mathematics , lens (geology) , mathematical optimization , plasma , quantum mechanics
In a recent publication [Appl. Opt.57, 8087 (2018).] a zoom system based on rotating toroidal lenses had been theoretically suggested. Here we demonstrate two different experimental realizations of such a system. The first consists of a set of four individually rotatable cylindrical lenses, and the second of four rotatable diffractive optical elements with phase structures corresponding to "saddle-lenses". It turns out that image aberrations produced by the refractive zoom system are considerably reduced by the diffractive system.