Electronic flash apparatus

Details Electronic flash apparatus Electronic flash apparatus

1974-09-23

1977-08-02

Rolinec, Rudolph V.

Electric lamp and discharge devices: systems

Condenser in the supply circuit

Condenser in shunt to the load device and the supply

320 3, 354147, H05B 3700, H02J 700

Patent

active

040398986

ABSTRACT:
An electronic photographic flash apparatus which is useful as an artificial light source for taking photographs. The apparatus of this invention does not use an AC charger or the like as its power source, but it uses a plurality of secondary batteries normally held in a charged state by a primary battery, whereby when the flash apparatus is to be used, the connection of the plurality of the secondary batteries is changed to quickly charge a main discharge capacitor of the flash apparatus. By virtue of the ability of the apparatus to quickly charge its main discharge capacitor, the electronic flash apparatus in accordance with the present invention can effectively associate its operation with the operation of the shutter release of a photographic camera when it is incorporated in the latter.

REFERENCES:
patent: 2675490 (1954-04-01), Portail
patent: 2818543 (1957-12-01), Dodge
patent: 3443115 (1969-05-01), Timmermah, Jr.
patent: 3831079 (1974-08-01), Iwata

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