Apparatus for selectively viewing a plurality of recording eleme

Details Apparatus for selectively viewing a plurality of recording eleme Apparatus for selectively viewing a plurality of recording eleme

1977-03-07

1979-01-02

Stephan, Steven L.

Optics: image projectors

Selective data retrieval

353110, 358102, G03B 2306, G03B 2310

Patent

active

041324692

ABSTRACT:
Apparatus for viewing image frames from interchangeable sets of disk-like photographic film units, preferably through a standard television receiver. The film units define sector-shaped, peripherally located notches and are accumulated on a spindle with the notches aligned on a common axis extending parallel to the spindle. The apparatus is provided with a carriage for receiving the interchangeable sets in a predetermined orientation, and includes an optical head, and means for relatively indexing the film units and the optical head both axially and rotationally. The notches accommodate the optical head and facilitate the relative axial indexing to select a particular film unit for viewing. The selected film unit is then released for rotation on the spindle, to present the desired frame to the optical head.

REFERENCES:
patent: 1215975 (1917-02-01), Palmer
patent: 3421802 (1969-01-01), Irazoqui
patent: 3790707 (1974-02-01), Valenta
patent: 3959801 (1976-05-01), Booth

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