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Proceedings Paper

Varifocal zone plates obtained by moire
Author(s): Rodrigo H. Henao; A. Mira; Zbigniew Jaroszewicz; Andrzej Kolodziejczyk
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Paper Abstract

Moire patterns in the form of equilateral hyperbolic zone plates have been studied. They are created by a mutual rotation of basic grids which turn out to be zone plates described by conic curves and include as a special case hyperbolic and elliptical zone plates. The obtained moire zone plates change their focal length in function of the rotation's angle between the superposed grids that generated them and therefore they can be of interest in three-point method used for determination of small displacements of great engineering structures. Simulations as well as experimental results are presented.

Paper Details

Date Published: 21 October 2004
PDF: 5 pages
Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); doi: 10.1117/12.591698
Show Author Affiliations
Rodrigo H. Henao, Univ. de Antioquia (Colombia)
A. Mira, Univ. de Antioquia (Colombia)
Zbigniew Jaroszewicz, Institute of Applied Optics (Poland)
Andrzej Kolodziejczyk, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 5622:
5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications

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