Indicating device for computer type electronic flash unit

Details Indicating device for computer type electronic flash unit Indicating device for computer type electronic flash unit

1980-06-09

1982-05-25

Gellner, Michael L.

354145, G03B 1505, G03B 1718

Patent

active

043314066

ABSTRACT:
A flash system including a computer type electronic flash unit and a camera. The computer type electronic flash unit includes an output terminal at which a signal representing the fully charged condition of an electrical energy storage capacitor is produced, a firing stop signal generating circuit and a signal supply circuit for supplying the output of the generating circuit to the output terminal. The camera includes an indicating device connected to the output terminal for indicating the firing stop signal transmitted from the output terminal. The camera also includes an override circuit for inhibiting the charge completion signal from being transmitted to the indicating means in response to a release operation of the camera.

REFERENCES:
patent: 3979639 (1976-09-01), Adams, Jr.
patent: 3999193 (1976-12-01), Hasegawa
patent: 4125766 (1978-11-01), Holtje

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