Theoretical Interpretation of Moiré Patterns. Oster, G., Wasserman, M., & Zwerling, C. J. Opt. Soc. Am., 54(2):169-175, 2, 1964. abstract bibtex \textlessp\textgreaterA general mathematical technique for the solution of moiré patterns produced by the overlapping of two figures is presented. The technique is applied to combinations of figures involving parallel lines, radial lines, and concentric circles including those in which the spacing is variable. When an equispaced parallel line figure is overlapped on a parallel line figure whose spacing is variable, the resultant moiré pattern reveals the functional form of the variation.\textless/p\textgreater\textlessp\textgreaterThe theory of the measurement of refractive index gradients by the moiré technique is presented. Three arrangements of the positions of the figures with respect to the sample are analyzed. One compact arrangement gives exclusively the refractive index gradient. The interpretation of moiré patterns distorted by lenses is considered in terms of the properties of the lenses.\textless/p\textgreater\textlessp\textgreaterThe mathematical solutions of moiré patterns are, in many cases, identical with those arising in physical problems. Examples are given for a number of phenomena arising in physical optics, hydrodynamics, and electrostatics.\textless/p\textgreater
@article{Oster:1964,
Author = {Oster, G. and Wasserman, M. and Zwerling, C.},
Date-Added = {2012-10-22 10:35:57 +0000},
Date-Modified = {2012-12-04 19:22:49 +0000},
Journal = {J. Opt. Soc. Am.},
Month = {2},
Number = {2},
Pages = {169-175},
Title = {Theoretical Interpretation of Moir\'{e} Patterns},
Volume = {54},
Year = {1964},
Abstract = {{\textless}p{\textgreater}A general mathematical technique for the solution of moir\'{e} patterns produced by the overlapping of two figures is presented. The technique is applied to combinations of figures involving parallel lines, radial lines, and concentric circles including those in which the spacing is variable. When an equispaced parallel line figure is overlapped on a parallel line figure whose spacing is variable, the resultant moir\'{e} pattern reveals the functional form of the variation.{\textless}/p{\textgreater}{\textless}p{\textgreater}The theory of the measurement of refractive index gradients by the moir\'{e} technique is presented. Three arrangements of the positions of the figures with respect to the sample are analyzed. One compact arrangement gives exclusively the refractive index gradient. The interpretation of moir\'{e} patterns distorted by lenses is considered in terms of the properties of the lenses.{\textless}/p{\textgreater}{\textless}p{\textgreater}The mathematical solutions of moir\'{e} patterns are, in many cases, identical with those arising in physical problems. Examples are given for a number of phenomena arising in physical optics, hydrodynamics, and electrostatics.{\textless}/p{\textgreater}},
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