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Optical imaging device

  • US 6,564,089 B2
  • Filed: 03/05/2002
  • Issued: 05/13/2003
  • Est. Priority Date: 02/04/1999
  • Status: Expired due to Term
First Claim
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1. An optical scanning probe comprising:

  • an optical probe for being inserted into a body cavity;

    a light source for generating light to be irradiated onto a subject;

    an optical fiber for guiding the light from the light source to a distal end of the optical probe;

    light condensing means for condensing the light and to irradiate the light onto the subject;

    a distal end optical system provided in the distal end portion of the optical probe, comprising means for scanning the focus of the light condensed by the light condensor means to almost perpendicular direction to the optical axis of the light condensing means;

    separating means for separating the light returned from the subject from the light to the subject;

    light detecting means for detecting the return light separated by the separating means, wherein in the distal end optical system, a portion nearest to the subject comprises a transparent member having a set of almost parallel surfaces, and, flux of the condensed light slantedly arrives on the transparent member.

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