Three-dimensional internal back-projection system and method...

G - Physics – 03 – B

Patent

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G03B 21/56 (2006.01) G09B 9/30 (2006.01) G09B 27/00 (2006.01) H04N 9/31 (2006.01)

Patent

CA 2632346

A projection system (100) that projects coherent light rays from a coherent light (e.g., laser) source onto an inner surface (17) of a three-dimensional projection surface (16) is disclosed. A compact and low-power laser light image can thereby be formed and seen by an observer from outside the properly constructed three-dimensional projection surface. The three-dimensional projection surface thereby allows more accurate and interesting and useful projections of images of three-dimensional objects thereon. Examples of things that can be represented on such a surface are celestial bodies and planets like the Earth and anatomical organs. Special geometric and spatial correction is optionally applied to create the desired image onto a three-dimensional projection screen. Useful and entertaining information can also be displayed, optionally as dynamic and moving images, onto the projection screen as well.

L'invention concerne un système de projection (100) qui projette des rayons de lumière cohérente à partir d'une source de lumière cohérente (par exemple un laser) jusque sur une surface intérieure (17) d'une surface de projection tridimensionnelle (16). Une image de lumière laser compacte et basse puissance peut ainsi être formée et vue par un observateur sur la surface de projection tridimensionnelle construite de façon appropriée. La surface de projection tridimensionnelle permet ainsi des projections plus précises et plus intéressantes de même que plus utiles d'images d'objets tridimensionnels sur celle-ci. Corps célestes et planètes, la Terre et organes anatomiques sont des exemples de ce qui peut être représentée sur une telle surface. Une correction géométrique et spatiale spéciale est appliquée facultativement pour créer l'image souhaitée sur un écran de projection tridimensionnel. Des informations utiles et divertissantes peuvent également être affichées, facultativement sous la forme d'images dynamiques et mobiles, sur l'écran de projection.

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