Electronic flash control device employing a plurality of control

Details Electronic flash control device employing a plurality of control Electronic flash control device employing a plurality of control

1994-08-10

1996-04-02

Perkey, W. B.

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Plural load device systems

315241P, G03B 1505

Patent

active

RE0351962

ABSTRACT:
An electronic flash control device makes sure that the emission of light of an electronic flash is not impaired by a noise component signal prior to generation of a suitable quantity of light by the flash. A trigger signal is applied by the control device to allow the flash to emit light. An enable signal is supplied to a quenching circuit a predetermined time after the noise of the trigger signal has been produced. When the quantity of light from an object to be photographed by the camera reaches a certain value and the enable signal occurs, the quench circuit suppresses the emission of light by the electronic flash.

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English Language abstract of Japanese Patent Application No. 58-62633.

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