The moiré effect was considered at a finite distance. Formulas for the wavenumber and phase of the visible moiré patterns were found with displacements of the observer and of gratings taken into account. The computer simulation and physical experiment confirm the theory. The method of measurement of the wavevectors of plane waves was proposed basing on the Radon and Fourier transformations.
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| http://dx.doi.org/10.1364/OE.20.002163 | DOI Listing |
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