Quasi-moire patterns: their generation and geometry

Pablo F. Meilan; Dobryna Zalvidea; Mario Garavaglia

doi:10.1117/12.437168

14 August 2001 Quasi-moire patterns: their generation and geometry

Pablo F. Meilan, Dobryna Zalvidea, Mario Garavaglia

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437168
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

Abstract

This paper deals with the observation of quasi-moire patterns generated when an original 2D transparency is superimposed onto a copy of itself, and coplanarly rotated. Patterns are also observed if one of the transparency is the scaled-up or -down replica of the original. Also, patterns are observed if different scaling coefficients are applied in different directions. Besides, the quasi-moire patterns are observed when one of the transparencies is skewed. Quasi-moire patterns are generated by autocorrelation between the pair of transparencies: circular, elliptical, parabolic, hyperbolical, radial lines, and logarithmic spirals quasi-moire patterns are generated and that can be associated with generalized conics curves.

Citation Download Citation

Pablo F. Meilan, Dobryna Zalvidea, and Mario Garavaglia "Quasi-moire patterns: their generation and geometry", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437168

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KEYWORDS

Transparency

Moire patterns

Glasses

Lanthanum

Differential equations

Laser optics

Visualization

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