Optical differentiation of displacement patterns using double diffraction and spatial filtering |
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| Authors: | K. Patorski |
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| Affiliation: | The author is at the Warsaw Technical University, Institute of Design of Precise and Optical Instruments, 02-525 Warsaw, 8 Chodkiewicza Str., Poland |
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| Abstract: | ![]()
A simple technique of optical differentiation of displacement patterns is proposed. It utilizes a single copy of a distorted diffraction grating and a plane mirror. The principle of operation, together with experimental results and the comparison with previously described differentiation methods are given. |
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| Keywords: | optics gratings interferometry |
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