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TECH AUDIO VISUELLES
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TECH AUDIO VISUELLES
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Application filed by TECH AUDIO VISUELLESfiledCriticalTECH AUDIO VISUELLES
Priority to FR7534191ApriorityCriticalpatent/FR2331056A1/fr
Publication of FR2331056A1publicationCriticalpatent/FR2331056A1/fr
Application grantedgrantedCritical
Publication of FR2331056B1publicationCriticalpatent/FR2331056B1/fr
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
G03B23/00—Devices for changing pictures in viewing apparatus or projectors
G03B23/18—Devices for changing pictures in viewing apparatus or projectors with fade-in and fade-out effects
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Projection Apparatus
(AREA)
FR7534191A1975-11-071975-11-07Installation pour le changement de vues en fondu enchaine
GrantedFR2331056A1
(fr)