Patent Document ID: 20110275932
Application ID: 13145505
Patent Status: 0

Claim One:
1. A tomographic optical imaging device comprising: a light source for providing significant light at a stimulus wavelength to tissue, the light source configured to not provide significant light at wavelengths of fluorescent light emitted by fluorophore in tissue; an objective lens for receiving fluorescent light from tissue; an eyepiece for presenting images; a low-pass wavelength-selective device for passing the fluorescent light while not passing stimulus wavelength light, the low-pass wavelength-selective device disposed between the objective lens and the eyepiece; a beamsplitter disposed between the objective lens and the eyepiece for diverting at least a portion of the fluorescent light into a rotary filter; a rotary filter having at least a first bandpass element and a second bandpass element, the bandpass elements each having a center wavelength in a wavelength band of the fluorescent light, the first bandpass element having a center wavelength different from the center wavelength of the second bandpass element; an electronic camera for receiving and imaging fluorescent light passed by the rotary filter; an image processing system for receiving images from the electronic camera, and for computing depth of fluorophore in tissue at pixels of images based on ratios between intensity of fluorescent light passed by the first bandpass element and the second bandpass element; and a display device for displaying computed depth of fluorophore in tissue at pixels of the images.