1984-08-24
1985-05-28
Hix, L. T.
354416, 354418, G03B 1502, G03B 716
Patent
active
045196834
ABSTRACT:
In an electronic flash apparatus, electric power is alternately supplied by a same power source to the voltage elevating circuit for charging the main capacitor for flash emission and to other circuits provided in the flash unit or in the camera, such as a light emission control circuit for controlling the quantity of emitted light, an indicator circuit for indicating the completion of the charging of the main capacitor, an indicator circuit for indicating whether the light emission control is in operation, an alarm circuit for indicating an inadequate setting of the flash unit etc.
REFERENCES:
patent: 3971049 (1976-07-01), Ohmori et al.
patent: 3978496 (1976-08-01), Matsumoto
patent: 4086582 (1978-04-01), Kiyohara et al.
patent: 4096492 (1978-06-01), Land et al.
patent: 4112442 (1978-09-01), Maeda et al.
patent: 4354750 (1982-10-01), Hasegawa et al.
patent: 4393335 (1983-07-01), Hirata et al.
Hagyuda Nobuyoshi
Hasegawa Hiroshi
Iida Yoshikazu
Maida Osamu
Hix L. T,.
Lee Douglas S.
Nippon Kogaku K.K.
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