Simulation and measurement of moire patterns at finite distance

Abstract

The moire effect was considered at a finite distance. Formulas for the wavenumber and phase of the visible moire 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. (C) 2012 Optical Society of America