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Electronic still camera

  • US 4,742,369 A
  • Filed: 07/28/1987
  • Issued: 05/03/1988
  • Est. Priority Date: 03/20/1985
  • Status: Expired due to Term
First Claim
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1. An electronic still camera, comprising:

  • optical lens system means including a lens and a diaphragm;

    solid-state imaging element means on which an object image incident through said optical lens system means is focused;

    image signal storage means having a plurality of memory areas, and coupled to said solid-state imaging element means, for storing in each of said memory areas an image signal corresponding to the object image focused on said solid-state imaging element means;

    means for receiving photosensitive film means arranged at a position different from said solid-state imaging element means and on which the object image incident through said optical lens system means is focused;

    shutter means arranged in front of said photosensitive film means, and normally closed for preventing the object image incident through said optical lens system means from reaching said photosensitive film means;

    switch means;

    control means coupled to said switch means, said control means including means for outputting first, second and third control signals when said switch means is operated;

    storage control means for controlling the storing of a still image signal, said storage control means including means responsive to said first control signal for causing said image signal storage means to sequentially store in different memory areas still image signals which correspond to respective object image which are incident through said optical lens system means and which are focused on said solid-state imaging element means;

    shutter drive means responsive to said second control signal for opening said shutter means so that a still image of the object image, which is incident through said optical lens system means, is formed on photosensitive film means in said receiving means; and

    optical system control means responsive to said third control signal for controlling the amounts of light representing an object image which pass through said diaphragm of said control lens system means during the operation of said storage control means and during the operation of said shutter drive means, so that the amount of light representing the object image at the position of said solid-state imaging element means during operation of said storage control means, is substantially equal to the amount of light representing the object image at the position of said receiving means during operation of said shutter drive means.

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