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Digital camera

  • US 20010035910A1
  • Filed: 03/26/2001
  • Published: 11/01/2001
  • Est. Priority Date: 03/29/2000
  • Status: Abandoned Application
First Claim
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1. A digital camera comprising:

  • an imaging device including a two-dimensional array of pixels for receiving an optical image of a subject to generate an image signal;

    a driver for driving a taking lens in steps each producing movement of said taking lens through a distance greater than a depth of field;

    a calculator for calculating an evaluation value based on the image signal obtained from said imaging device in each position to which said taking lens is driven;

    a processor for performing an interpolation process upon a plurality of evaluation values obtained in respective positions to which said taking lens is driven to determine an in-focus position of said taking lens; and

    a controller for controlling said driver to drive said taking lens to said in-focus position, based on a processing result from said processor.

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