Time-sharing display approach using liquid crystal light valve and a photoreractive crystal for electroholography

Tsutomu Horikoshi; Masahiro Sasaura; Tadayuki Imai; Hiroki Yamazaki; Takaaki Akimoto; Shogo Yagi; Kazuhito Higuchi; Satoshi Suzuki; Noburu Sonehara

doi:10.1117/12.343786

25 March 1999 Time-sharing display approach using liquid crystal light valve and a photoreractive crystal for electroholography

Tsutomu Horikoshi, Masahiro Sasaura, Tadayuki Imai, Hiroki Yamazaki, Takaaki Akimoto, Shogo Yagi, Kazuhito Higuchi, Satoshi Suzuki, Noburu Sonehara

Author Affiliations +

Proceedings Volume 3637, Practical Holography XIII; (1999) https://doi.org/10.1117/12.343786
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

Abstract

A new electroholography system is introduced that uses a liquid crystal display, a photorefractive crystal, and a time- sharing display method. By using the photorefractive crystal as a kind of screen through which the hologram is recreated, we can realize high quality, off-axis, and computer-generated holograms. The time sharing approach enables an electronic display device to display 3D objects clearly by breaking them into parts that are displayed in sequential frames. If the fames are cycled at a high enough speed, we see these parts as a single object due to the afterimage effect. This approach relaxes the strict dynamic range requirements that would normally be placed on the electronic display device. The photorefractive crystal suppresses the flicker caused by the time-sharing display method. This paper first describes the time-sharing method. Next, a new experimental 3D-TV system with a photorefractive crystal, strontium barium niobate, is demonstrated. This system confirms the exciting future of electroholography.

Citation Download Citation

Tsutomu Horikoshi, Masahiro Sasaura, Tadayuki Imai, Hiroki Yamazaki, Takaaki Akimoto, Shogo Yagi, Kazuhito Higuchi, Satoshi Suzuki, and Noburu Sonehara "Time-sharing display approach using liquid crystal light valve and a photoreractive crystal for electroholography", Proc. SPIE 3637, Practical Holography XIII, (25 March 1999); https://doi.org/10.1117/12.343786

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