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Proceedings Paper

Prediction of the multiplex images appearance by computation of diffraction on their topology
Author(s): Ilya S. Borisov; Valeriy I. Grygoruk; Sergey A. Kostyukevych
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Paper Abstract

The present work deals with the Multiplex Images (MIs) including stereographic and animated ones with opportunity to predict their appearance and behavior before they are recorded by Electron-Beam Lithography Equipment (EBLE). On the one hand the presence of MI in Optical Security Device (OSD) increases its structure complexity improving security properties; on the other hand it makes it more spectacular and visually impressive. The analysis of MI behavior on a visual level is based on the theoretical estimations of the diffraction by the phase reflecting Elemental Diffracting Grating (EDG) under the arbitrary Conditions of Lighting and Observation (CLO). These estimations start from the strict quantitative formulation of the Huygens-Fresnel principle that was by Kirchhoff presented in 1883. They are also used for the assignment of encoding parameters for MI. The approach of middle wave zone is used, i.e. the distinctions in CLO for different points of MI topology are taken into account, which provides the integrity of the scene during observation. To represent the diffraction results in the RGB color system, it has been proposed to use the non-linear color compensation. It allows to obtain more expressive highlights together with shadows within one computed angle shot. Experimental results show viability of the proposed approach to visualization. Undoubtedly, the opportunity of predicting the look of any MI, provided by this utility, is a powerful tool, which will help to create vivid and impressive diffractive images.

Paper Details

Date Published: 21 April 2005
PDF: 10 pages
Proc. SPIE 5742, Practical Holography XIX: Materials and Applications, (21 April 2005); doi: 10.1117/12.590217
Show Author Affiliations
Ilya S. Borisov, Kyiv Taras Shevchenko Univ. (Ukraine)
Valeriy I. Grygoruk, Kyiv Taras Shevchenko Univ. (Ukraine)
Sergey A. Kostyukevych, Instuitute of Semiconductor Physics, RAS (Ukraine)

Published in SPIE Proceedings Vol. 5742:
Practical Holography XIX: Materials and Applications
Tung H. Jeong; Hans I. Bjelkhagen, Editor(s)

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