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Electromagnetically actuated shutter for a camera

  • US 4,634,254 A
  • Filed: 06/20/1985
  • Issued: 01/06/1987
  • Est. Priority Date: 06/25/1984
  • Status: Expired due to Term
First Claim
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1. An electromagnetically actuated shutter, comprising:

  • a movable member mounted for movement in forward and reverse directions between a focusing region and an exposing operation region;

    a single electromagnetic actuating means for forwardly and reversely actuating said movable member;

    an interlocking member mounted to undergo movement with said movable member in said focusing region;

    a focus operating member actuated by forward movement of said interlocking member to effect an automatic focusing operation;

    a focusing control member engageable with said interlocking member to stop the forward movement thereof when said movable member moves through said focusing region and reaches a focusing point;

    shutter blades driven by a sector lever when said movable member undergoes movement in said exposing operation region; and

    controlling means operable in response to movement of said movable member into said exposing operation region for producing a reversing signal and applying the same to said electromagnetic actuating means after the lapse of a time corresponding to object brightness information to thereby cause said electromagnetic actuating means to move said movable member in the reverse direction.

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