Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Plural load device systems
Patent
1985-06-24
1986-12-02
Perkey, William B.
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
Plural load device systems
354416, 354418, 354132, 315241P, G03B 1505
Patent
active
046260935
ABSTRACT:
An electronic flash apparatus for flash photographing comprises flash discharge means, means for supplying a voltage to the flash discharge means, first light emission control means comprising first trigger means for triggering the flash discharge means to cause a discharge therein, for the purpose of the flash photographing and second light emission control means. The second light emission control means comprises oscillator means for generating periodic output signals, second trigger means for periodically triggering the flash discharge means in response to the periodic output signals thereby periodically initiating the discharge in the flash discharge means, detecting mean for generating an output signal upon detection of the initiation of the discharge in the flash discharge means and means for terminating the discharge in the flash discharge means in response to the output signal of the detecting means.
The electronic flash apparatus further comprises means for selecting either a first mode in which the flash discharge means is controlled by the first light emission control means or a second mode in which the flash discharge means is controlled by the second light emission control means, and means for driving the light emission control means in a manner different from the flash photographing.
REFERENCES:
patent: 3438766 (1969-04-01), Biber
patent: 3846811 (1974-11-01), Nakamura et al.
patent: 3997815 (1976-12-01), Decker
patent: 3998534 (1976-12-01), Schulze et al.
patent: 4068245 (1978-01-01), Ohtaki et al.
patent: 4199242 (1980-04-01), Hosomizu et al.
patent: 4275335 (1981-06-01), Ishida
patent: 4349260 (1982-09-01), Ishida et al.
patent: 4423470 (1983-12-01), Naito et al.
Hagyuda Nobuyoshi
Matsui Hideki
Nippon Kogaku K.K.
Perkey William B.
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