Moiré fringe profile prediction method and its application to fringe sharpening

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Abstract
The fringe profile of the moiré pattern resulting from the interaction between a regular and a distorted binary grating is studied. The moiré fringe profile prediction method in a generalized form is deduced and summarized in a table illustrating the relationship between the profile parameters of superposed gratings and those of moiré fringes. The method is confirmed by computer simulation and experiment. The conditions for dark and bright fringe sharpening are obtained by using the derived prediction method.

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