Patent
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
Kawamura Masaharu
Kiuchi Masayoshi
Murakami Hiroyasu
Yamada Masanori
Canon Kabushiki Kaisha
Gellner Michael L.
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