Optics: image projectors – With sound accompaniment – Common picture and sound record carrier system
Patent
1983-10-21
1984-09-25
Haroian, Harry N.
Optics: image projectors
With sound accompaniment
Common picture and sound record carrier system
353120, 353 7, 353110, G03B 2110
Patent
active
044732805
ABSTRACT:
An audio-visual cartridge containing two coplanar adjacent rotatable discs, a visual disc carrying a plurality of picture transparencies mounted in a ring for successive viewing and an audio disc having sound recording tracks on a face thereof for individual sound recordings corresponding to transparencies, the cartridge being in the form of a flat envelope having a first and second internal compartment disposed in coplanar relation for accommodating the discs. An apparatus for reproducing recordings while a user views transparencies on discs contained in an audio-visual cartridge is provided with a manual selector for rotating the visual disc and a motor drive for rotating the audio disc, an optical viewer for reading the transparencies, an audio device for reading sound tracks and reproducing recordings and a circuit and mechanism for coordinating the rotation of the discs so that individual recordings corresponding to transparencies are reproduced while the corresponding transparencies are being viewed.
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patent: 3868178 (1975-02-01), Dimitracopoulos
patent: 4014604 (1977-03-01), Schwartz
Haroian Harry N.
Staar S. A.
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