Global Patent Index - EP 1332410 A1

EP 1332410 A1 20030806 - IMPROVED 3D DISPLAY

Title (en)

IMPROVED 3D DISPLAY

Title (de)

VERBESSERTE DREIDIMENSIONALE ANZEIGEVORRICHTUNG

Title (fr)

AFFICHAGE 3D AMELIORE

Publication

EP 1332410 A1 20030806 (EN)

Application

EP 01982588 A 20011102

Priority

  • GB 0104855 W 20011102
  • GB 0027103 A 20001107
  • US 24701600 P 20001113

Abstract (en)

[origin: WO0239192A1] A method of generating a Computer Generated Hologram (CGH) using the diffraction specific algorithm allows a curved wavefront to be produced from a single hogel, rather than the planar waves of the prior art. This allows a wavefront from a singel hogel to generate a point in the image volume. An imaginary wavefron is transmitted from each point in the image volume and sampled at a plurality of points over the hogel. These samples are used to produce a set of complex Fourier coefficients that can be used to approximate the original waveform.

IPC 1-7

G03H 1/08

IPC 8 full level

G03H 1/08 (2006.01); G03H 1/12 (2006.01); G03H 1/16 (2006.01)

CPC (source: EP)

G03H 1/0808 (2013.01); G03H 1/2249 (2013.01); G03H 1/2294 (2013.01); G03H 2001/0833 (2013.01); G03H 2001/221 (2013.01); G03H 2210/30 (2013.01); G03H 2223/24 (2013.01)

Citation (search report)

See references of WO 0239192A1

Citation (examination)

  • YOSHIKAWA H.; KAMEYAMA H.: "INTEGRAL HOLOGRAPHY", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA, US, vol. 2406, 6 August 1995 (1995-08-06), pages 226 - 234, XP009002331
  • MEANO K. ET AL: "ELECTRO-HOLOGRAPHIC DISPLAY USING 15MEGA PIXELS LCD", PROCEEDINGS OF THE SPIE, SPIE, BELLINGHAM, VA, US, vol. 2652, 1996, pages 15 - 23, XP000923279

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 0239192 A1 20020516; AU 1413102 A 20020521; CA 2428149 A1 20020516; EP 1332410 A1 20030806; JP 2004516498 A 20040603

DOCDB simple family (application)

GB 0104855 W 20011102; AU 1413102 A 20011102; CA 2428149 A 20011102; EP 01982588 A 20011102; JP 2002541454 A 20011102