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In vivo camera with multiple sources to illuminate tissue at different distances

  • US 8,636,653 B2
  • Filed: 05/29/2009
  • Issued: 01/28/2014
  • Est. Priority Date: 06/09/2008
  • Status: Active Grant
First Claim
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1. An endoscope comprising:

  • a housing sufficiently small to travel through a gastrointestinal tract of a human, the housing comprising a tubular wall;

    a transmitter enclosed within said housing, to transmit image data to an external device;

    a set of one or more sensors enclosed within said housing and coupled to said transmitter, said set supplying said image data to said transmitter;

    a first source enclosed within said housing, to generate first electromagnetic radiation exiting said housing;

    wherein said first source is positioned at a first location whereby said first electromagnetic radiation passes through a first region of the housing defined by a first intersection of said first electromagnetic radiation with a surface of the housing;

    a second source enclosed within said housing, to generate second electromagnetic radiation exiting said housing;

    wherein said second source is positioned at a second location whereby the second electromagnetic radiation passes through a second region of the housing defined by a second intersection of said second electromagnetic radiation with the surface of the housing;

    wherein the first region is larger than the second region;

    wherein a third electromagnetic radiation enters said housing through said tubular wall, to form said image data; and

    wherein at least a portion of said third electromagnetic radiation arises from reflection of a fraction of said first and second electromagnetic radiation.

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