G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—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
G03B21/00—Projectors or projection-type viewers; Accessories therefor
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Overhead Projectors And Projection Screens
(AREA)
Projection Apparatus
(AREA)
Transforming Electric Information Into Light Information
(AREA)
Systeme optique a reflexions pouvant etre adapte a l'appareil photographique, camera ou television permettant d'obtenir la reduction et la reproduction d'un espace avec perception du relief