Audio visual apparatus

Details Audio visual apparatus Audio visual apparatus

1976-05-13

1978-05-09

Hayes, Monroe H.

Optics: motion pictures

With sound accompaniment

Common picture and sound record carrier systems

352 29, 352 80, G03B 3102

Patent

active

040883990

ABSTRACT:
In a dual film-gauge telecine apparatus two optical sound heads are provided in close proximity to the drive capstan. The drive capstan is provided with an annular groove to support one of the optical sound heads. The sound heads comprise a light source and light sensitive detector so disposed as to be in alignment on opposite sides of the edge of a film of the respective gauge.

REFERENCES:
patent: 1811365 (1931-06-01), Owens
patent: 1839037 (1931-12-01), Kellogg
patent: 1854004 (1932-04-01), Tschopp
patent: 2061879 (1936-11-01), Paillard
patent: 2912516 (1959-11-01), Hallmann
patent: 3404937 (1968-10-01), Peirez

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