Title:
ELECTRONIC HOLOGRAPHIC DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/014030
Kind Code:
A1
Abstract:
[Problem] To provide an electronic holographic display device capable of displaying a lossless 3D-reconstructed image without loss of parallax in the vertical direction when the image size of a 3D-reconstructed image is enlarged using a plurality of spatial light-modulating elements. [Solution] An electronic holographic display device (1) is provided with: an optical illumination means (10); a plurality of polarization beam splitters (20); a plurality of spatial light-modulating elements (30) arrayed at predetermined intervals and used for modulating light vertically incident from the polarization beam splitters (20); an optical enlargement system (40); and an optical reduction system (50), the electronic holographic display device (1) being characterized in that the optical enlargement system (40) is provided with a first lens array (41) and a second lens array (42), the optical reduction system (50) is provided with a third lens (51) and a fourth lens (52), the interval (a) between the spatial light-modulating elements (30) and the first lens array (41) is a = (k + 2) f0/(k + 1), where k is the ratio of the interval between the spatial light-modulating elements (30) with respect to the size of the spatial light-modulating elements (30), and f0 is the focal distance of the first lens.
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Inventors:
YAMAMOTO KENJI (JP)
ICHIHASHI YASUYUKI (JP)
SENOH TAKANORI (JP)
OI RYUTARO (JP)
KURITA TAIICHIRO (JP)
ICHIHASHI YASUYUKI (JP)
SENOH TAKANORI (JP)
OI RYUTARO (JP)
KURITA TAIICHIRO (JP)
Application Number:
PCT/JP2013/069426
Publication Date:
January 23, 2014
Filing Date:
July 17, 2013
Export Citation:
Assignee:
NAT INST INF & COMM TECH (JP)
International Classes:
G03H1/22; G02B30/25; G02F1/13; G03H1/08; G11B7/135
Foreign References:
| JPH07129067A | 1995-05-19 | |||
| JP2005165224A | 2005-06-23 | |||
| JPH08160416A | 1996-06-21 | |||
| JPH09318910A | 1997-12-12 | |||
| JP2010237691A | 2010-10-21 |
Other References:
KENJI YAMAMOTO ET AL.: "3D objects enlargement technique using an optical system and multiple SLMs for electronic holography", OPTICS EXPRESS, vol. 20, no. 19, 10 September 2012 (2012-09-10), pages 21137 - 21144
TOMOYUKI MISHINA ET AL.: "Holographic display with enlarged viewing-zone using high- resolution LC panel", PROCEEDINGS OF SPIE-IS&T ELECTRONIC IMAGING, vol. 5005, 30 May 2003 (2003-05-30), pages 137 - 144
TAKANORI SENOH ET AL.: "Wide viewing-zone-angle full-color electronic holography system using very high resolution liquid crystal display panels", PROC. OF SPIE, vol. 7957, 7 February 2011 (2011-02-07), pages 1 - 12
TOMOYUKI MISHINA ET AL.: "Holographic display with enlarged viewing-zone using high- resolution LC panel", PROCEEDINGS OF SPIE-IS&T ELECTRONIC IMAGING, vol. 5005, 30 May 2003 (2003-05-30), pages 137 - 144
TAKANORI SENOH ET AL.: "Wide viewing-zone-angle full-color electronic holography system using very high resolution liquid crystal display panels", PROC. OF SPIE, vol. 7957, 7 February 2011 (2011-02-07), pages 1 - 12
Attorney, Agent or Firm:
ISONO Michizo (JP)
Michizo Isono (JP)
Michizo Isono (JP)
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