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Journal of Electronic Imaging

Real-time electroholographic system using liquid crystal television spatial light modulators
Author(s): Nobuyuki Hashimoto; Shigeru Morokawa
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Paper Abstract

Matrix-addressed liquid crystal devices, such as liquid crystal television spatial light modulators (LCTV-SLMs) have a suitability for displaying holograms electrically in real time because of their ability to easily display image patterns by electric signals. In our electroholographic system, a CCD camera reads a holographic interference fringe pattern, i.e., a hologram, which is then transmitted to and subsequently displayed on an LCTV-SLM by video signals. The LCTV-SLM is illuminated with collimated laser light and the image of the electrohologram is reconstructed in real time. Because the carrier frequency of the hologram is very low, a limitation imposed by the relatively low resolution of the CCD camera and the LCTV-SLM, a spatial-filtering technique is applied to remove the zeroth-order diffracted light from the reconstructed image.

Paper Details

Date Published: 1 April 1993
PDF: 7 pages
J. Electron. Imag. 2(2) doi: 10.1117/12.136692
Published in: Journal of Electronic Imaging Volume 2, Issue 2
Show Author Affiliations
Nobuyuki Hashimoto, Citizen Watch Co., Ltd. (Japan)
Shigeru Morokawa, Citizen Watch Co., Ltd. (Japan)

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