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Fluorescence endoscopy video systems with no moving parts in the camera

  • US 20050154319A1
  • Filed: 12/10/2004
  • Published: 07/14/2005
  • Est. Priority Date: 01/15/2002
  • Status: Abandoned Application
First Claim
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1. A fluorescence endoscopy video system including:

  • a multi-mode light source for producing white light, fluorescence excitation light or fluorescence excitation light with a reference reflectance light;

    an endoscope for directing the light from the light source into a patient to illuminate a tissue sample and to collect reflected light or fluorescence light produced by the tissue;

    a camera positioned to receive the light collected by the endoscope, the camera including;

    a low light image sensor having integrated filters with color output;

    one or more filters positioned in front of the low light color image sensor for selectively blocking light with wavelengths below 470 nm and transmitting visible light with wavelengths greater than 470 nm; and

    one or more optical imaging components that project images onto the low light color image sensor;

    an image processor/controller that receives image signals from the low light color image sensor and combines and interpolates image signals from pixels having filters with the same integrated filter characteristics to fluorescence or reflectance light and then encodes the images as video signals; and

    a color video monitor for displaying superimposed video images from the pixels of the low light image sensor.

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