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Apparatus and method for characterizing optical sources used with human and animal tissues

  • US 8,929,973 B1
  • Filed: 11/30/2007
  • Issued: 01/06/2015
  • Est. Priority Date: 10/24/2005
  • Status: Expired due to Fees
First Claim
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1. A method for characterizing an optical source comprising:

  • obtaining light from the optical source;

    providing a tissue phantom having a light-input face and a light-output face opposite the light-input face, wherein the light-input face includes a first planar area;

    at a first time, transmitting a portion of the light through a first volume of the tissue phantom that is located between the first planar area of the light-input face and the light-output face such that the light enters the first volume of the tissue phantom through the first planar area of the light-input face and the portion of the light that transmits through the first volume of the tissue phantom exits the first volume of the tissue phantom through a second planar area of the light-output face that is opposite the first planar area of the light-input face;

    at the first time, receiving the transmitted light from the second planar area of the light-output face that is opposite the first planar area of the light-input face as a characterization of the portion of the light transmitted through the first volume of the tissue phantom, wherein the receiving of the transmitted light further comprises generating an electrical signal that characterizes the portion of the light transmitted through the first volume of the tissue phantom and electrically processing the electrical signal; and

    displaying a representation of the characterization associated with the portion of the light transmitted through the first volume of the tissue phantom, wherein the displaying includes displaying a representation of the electrically processed characterization associated with the portion of the light transmitted through the first volume of the tissue phantom, wherein the displaying includes displaying an iso-intensity map of the transmitted light, wherein the first area of the light-input face of the first volume on the tissue phantom is not parallel to the light-output face of the first volume opposite the first area, such that there is a continuously varying thickness between the first area of the light-input face and the light-output face opposite the first area, and wherein the thickness varies at a constant rate.

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