Dual sound track sensor and calibration strip therefor

Details Dual sound track sensor and calibration strip therefor Dual sound track sensor and calibration strip therefor

1975-12-08

1978-05-02

Konick, Bernard

Dynamic magnetic information storage or retrieval

Head

Core

1791003E, 1791003T, 1791003B, 360109, 352 27, 357 32, 1791003P, G03B 3102

Patent

active

040876349

ABSTRACT:
A sensing device for use with a motion picture projector for projecting a motion picture having a sound track with two or more sound channels, said projector having a light source for illuminating said sound track, said sensing device having a base or fixed portion adapted to be fastened to a suitable portion of the motion picture projector, such as a housing, and a moveable support member adjustably connected to said base portion, and adjustment means for adjusting said support member relative to said fixed portion, and two or more photo voltaic cells mounted on the moveable portion, each having a width dimension appropriate to the width of one of said sound channels, and each separated by a small gap.

REFERENCES:
patent: 2911539 (1959-11-01), Tanenbaum
patent: 2972022 (1961-02-01), Byrd
patent: 3344240 (1967-09-01), Bottani
patent: 3352975 (1967-11-01), Floden
patent: 3591267 (1971-07-01), Kakiuchi
patent: 3964826 (1976-06-01), Joseph

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