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Method and apparatus for optimizing object distance signals

  • US 4,547,055 A
  • Filed: 12/26/1984
  • Issued: 10/15/1985
  • Est. Priority Date: 12/26/1984
  • Status: Expired due to Fees
First Claim
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1. Apparatus for focusing an optimized image of a plurality of different subjects located at substantially different subject distances, comprising:

  • means for deriving a signal representative of the distance to the nearest subject included within said plurality of different distance subjects;

    means for deriving a composite signal representative of the relative size of each of said subjects and their respective subject distances;

    means for generating a signal representative of the ratio between said nearest and said composite subject distance signals;

    an image plane; and

    an adjustable focus lens system responsive to said ratio signal for focusing an optimized image of said plurality of different subjects at said image plane.

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