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Proceedings Paper

Computer simulation of reconstructed image for computer-generated holograms
Author(s): Tomoki Yasuda; Mitsuru Kitamura; Masachika Watanabe; Masato Tsumuta; Takeshi Yamaguchi; Hiroshi Yoshikawa
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Paper Abstract

This report presents the results of computer simulation images for image-type Computer-Generated Holograms (CGHs) observable under white light fabricated with an electron beam lithography system. The simulated image is obtained by calculating wavelength and intensity of diffracted light traveling toward the viewing point from the CGH. Wavelength and intensity of the diffracted light are calculated using FFT image generated from interference fringe data. Parallax image of CGH corresponding to the viewing point can be easily obtained using this simulation method. Simulated image from interference fringe data was compared with reconstructed image of real CGH with an Electron Beam (EB) lithography system. According to the result, the simulated image resembled the reconstructed image of the CGH closely in shape, parallax, coloring and shade. And, in accordance with the shape of the light sources the simulated images which were changed in chroma saturation and blur by using two kinds of simulations: the several light sources method and smoothing method. In addition, as the applications of the CGH, full-color CGH and CGH with multiple images were simulated. The result was that the simulated images of those CGHs closely resembled the reconstructed image of real CGHs.

Paper Details

Date Published: 3 February 2009
PDF: 11 pages
Proc. SPIE 7233, Practical Holography XXIII: Materials and Applications, 72330H (3 February 2009); doi: 10.1117/12.809774
Show Author Affiliations
Tomoki Yasuda, Dai Nippon Printing Co., Ltd. (Japan)
Mitsuru Kitamura, Dai Nippon Printing Co., Ltd. (Japan)
Masachika Watanabe, Dai Nippon Printing Co., Ltd. (Japan)
Masato Tsumuta, Nihon Univ. (Japan)
Takeshi Yamaguchi, Nihon Univ. (Japan)
Hiroshi Yoshikawa, Nihon Univ. (Japan)

Published in SPIE Proceedings Vol. 7233:
Practical Holography XXIII: Materials and Applications
Hans I. Bjelkhagen; Raymond K. Kostuk, Editor(s)

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