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1. (WO1991007696) METHOD AND APPARATUS FOR PRESENTING 3-D MOTION PICTURES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007696 International Application No.: PCT/CA1990/000403
Publication Date: 30.05.1991 International Filing Date: 20.11.1990
Chapter 2 Demand Filed: 10.06.1991
IPC:
G03B 35/16 (2006.01) ,H04N 13/00 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
35
Stereoscopic photography
16
by sequential viewing
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
13
Stereoscopic television systems; Details thereof
Applicants:
IMAX SYSTEMS CORPORATION [--/CA]; 38 Isabella Street Toronto, Ontario M4Y 1N1, CA
Inventors:
SHAW, William, C.; CA
FERGUSON, I., Graeme; CA
KROITOR, Roman, B.; CA
HARRIS, Gordon, W.; CA
BAKER, Ken, T.; CA
PANABAKER, Paul, D.; CA
TOPORKIEWICKZ, Marian, F.; AT
Agent:
ROGERS, BERESKIN & PARR; 40 King Street West 40th Floor Toronto, Ontario M5H 3Y2, CA
Priority Data:
2,003,66122.11.1989CA
Title (EN) METHOD AND APPARATUS FOR PRESENTING 3-D MOTION PICTURES
(FR) PROCEDE ET APPAREIL DE PROJECTION D'IMAGES CINEMATOGRAPHIQUES TRIDIMENSIONNELLES
Abstract:
(EN) A high fidelity 3-D immersion theatre experience is produced by alternately projecting corresponding left-eye and right-eye images (70, 72) onto a dome-shaped projection screen (12) from two separate film strips (38, 40) and through separate wide-angle lenses (42, 44). The lenses are positioned close together with their projection axes in a common vertical plane (P) to achieve lateral co-incidence of the projected images (70, 72) and oriented in that plane to achieve vertical co-incidence of the images. Each person viewing the motion picture is provided with glasses (74) that have lenses (78, 80) in the form of liquid crystal cells arranged to alternately block the left and right eyes of the person in synchronism with the projection of right-eye and left-eye images respectively, so that a stereoscopic effect is perceived.
(FR) On produit des images cinématographiques tridimensionnelles haute fidélité donnant au spectateur l'impression d'une immersion dans l'image, en projetant alternativement des images ÷il gauche et ÷il droit correspondantes (70, 72) sur un écran de projection en forme de dôme (12) à partir de deux bandes de film séparées (38, 40) et à travers des objectifs à grand angle séparés (42, 44). Les objectifs sont placés proches l'un de l'autre avec leurs axes de projection situés dans un plan vertical commun (P) pour permettre une coïncidence latérale des images projetées (70, 72) et orientés dans ce plan pour assurer une coïncidence verticale des images. Chaque spectateur est équipé de lunettes (74) ayant des verres (78, 80) en forme de cellules à cristaux liquides destinées à obturer alternativement l'÷il gauche et l'÷il droit du spectateur en synchronisme avec la projection des images ÷il droit et ÷il gauche, respectivement, de façon à ce qu'un effet stéréoscopique soit perçu.
Designated States: AU, BG, BR, FI, HU, JP, KR, NO, RO, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1990067278