Static moiré patterns in moving grids

We describe an optical phenomenon of unmovable moiré patterns in sliding (moving) grids and gratings. The phenomenon was observed visually in the planar straight movement of the black-and-white gratings with a period of several mm. This is a velocity-independent effect confirmed analytically and in...

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Autores principales: Saveljev, Vladimir, Kim, Jaisoon, Son, Jung-Young, Kim, Yongsuk, Heo, Gwanghee
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7468115/
https://www.ncbi.nlm.nih.gov/pubmed/32879372
http://dx.doi.org/10.1038/s41598-020-70427-x
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author Saveljev, Vladimir
Kim, Jaisoon
Son, Jung-Young
Kim, Yongsuk
Heo, Gwanghee
author_facet Saveljev, Vladimir
Kim, Jaisoon
Son, Jung-Young
Kim, Yongsuk
Heo, Gwanghee
author_sort Saveljev, Vladimir
collection PubMed
description We describe an optical phenomenon of unmovable moiré patterns in sliding (moving) grids and gratings. The phenomenon was observed visually in the planar straight movement of the black-and-white gratings with a period of several mm. This is a velocity-independent effect confirmed analytically and in a computer simulation based on the spatial averaging. We found the static directions of the moiré patterns in the regular grids, but our technique can be also applied to other objects. The orientation and period of the static moiré patterns are not obvious, especially in the presence of the distance effect. The phenomenon can be practically used in security applications.
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spelling pubmed-74681152020-09-03 Static moiré patterns in moving grids Saveljev, Vladimir Kim, Jaisoon Son, Jung-Young Kim, Yongsuk Heo, Gwanghee Sci Rep Article We describe an optical phenomenon of unmovable moiré patterns in sliding (moving) grids and gratings. The phenomenon was observed visually in the planar straight movement of the black-and-white gratings with a period of several mm. This is a velocity-independent effect confirmed analytically and in a computer simulation based on the spatial averaging. We found the static directions of the moiré patterns in the regular grids, but our technique can be also applied to other objects. The orientation and period of the static moiré patterns are not obvious, especially in the presence of the distance effect. The phenomenon can be practically used in security applications. Nature Publishing Group UK 2020-09-02 /pmc/articles/PMC7468115/ /pubmed/32879372 http://dx.doi.org/10.1038/s41598-020-70427-x Text en © The Author(s) 2020, corrected publication 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Saveljev, Vladimir
Kim, Jaisoon
Son, Jung-Young
Kim, Yongsuk
Heo, Gwanghee
Static moiré patterns in moving grids
title Static moiré patterns in moving grids
title_full Static moiré patterns in moving grids
title_fullStr Static moiré patterns in moving grids
title_full_unstemmed Static moiré patterns in moving grids
title_short Static moiré patterns in moving grids
title_sort static moiré patterns in moving grids
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7468115/
https://www.ncbi.nlm.nih.gov/pubmed/32879372
http://dx.doi.org/10.1038/s41598-020-70427-x
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