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Trigger device for electronic flash

  • US 4,479,704 A
  • Filed: 10/11/1983
  • Issued: 10/30/1984
  • Est. Priority Date: 06/18/1981
  • Status: Expired due to Term
First Claim
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1. A trigger device for flash comprising:

  • shutter control signal producing means for producing a shutter opening and closing operation control signal for opening and closing an electromagnetically driven shutter;

    timer means for producing a delay output signal after the lapse of a certain predetermined time after the timer starts to operate with the shutter opening operation control signal from the shutter control signal producing means; and

    flash trigger signal producing means for producing a trigger signal for causing a flash device to emit the flash in response to the shutter closing operation control signal from the shutter control signal producing means or the delay output signal from the timer means whichever is later when both signals are produced.

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