Patents by Inventor Angela Baumgartner

Angela Baumgartner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for recording three-dimensional distribution of light backscattering potential in transparent and semi-transparent structures
    Patent number: 6307634
    Abstract: An apparatus is disclosed for generating data representative of a three-dimensional distribution of the light backscattering potential of a transparent or semi-transparent object such as a human eye. The apparatus includes an interferometer, both the reference beam and measurement beam of which are directed toward the object and reflected by respective reference and measurement sites thereof, such that axial motion of the object during measurement affects both beams equally. The measurement beam is raster scanned transversely across each measurement site for which data is obtained. Also, the frequency of one of the beams is shifted by a non-moving frequency shifter, such that the reflected beams combine and are modulated by a heterodyne heat frequency, which is detected when the object path difference is matched with the interferometer path difference.
    Type: Grant
    Filed: January 6, 2001
    Date of Patent: October 23, 2001
    Assignee: Laser Diagnostic Technologies, Inc.
    Inventors: Christoph Hitzenberger, Angela Baumgartner
  • Method and apparatus for recording three-dimensional distribution of light backscattering potential in transparent and semi-transparent structures
    Patent number: 6288784
    Abstract: An apparatus is disclosed for generating data representative of a three-dimensional distribution of the light backscattering potential of a transparent or semi-transparent object such as a human eye. The apparatus includes an interferometer, both the reference beam and measurement beam of which are directed toward the object and reflected by respective reference and measurement sites thereof, such that axial motion of the object during measurement affects both beams equally. The measurement beam is raster scanned transversely across each measurement site for which data is obtained. Also, the frequency of one of the beams is shifted by a non-moving frequency shifter, such that the reflected beams combine and are modulated by a heterodyne beat frequency, which is detected when the object path difference is matched with the interferometer path difference.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: September 11, 2001
    Assignee: Laser Diagnostics Technologies Inc.
    Inventors: Christoph Hitzenberger, Angela Baumgartner
  • Method and apparatus for recording three-dimensional distribution of light backscattering potential in transparent and semi-transparent structures
    Publication number: 20010000978
    Abstract: An apparatus is disclosed for generating data representative of a three-dimensional distribution of the light backscattering potential of a transparent or semi-transparent object such as a human eye. The apparatus includes an interferometer, both the reference beam and measurement beam of which are directed toward the object and reflected by respective reference and measurement sites thereof, such that axial motion of the object during measurement affects both beams equally. The measurement beam is raster scanned transversely across each measurement site for which data is obtained. Also, the frequency of one of the beams is shifted by a non-moving frequency shifter, such that the reflected beams combine and are modulated by a heterodyne beat frequency, which is detected when the object path difference is matched with the interferometer path difference.
    Type: Application
    Filed: January 6, 2001
    Publication date: May 10, 2001
    Applicant: Laser Diagnostics Technologies Inc.
    Inventors: Christoph Hitzenberger, Angela Baumgartner
  • Method and apparatus for recording three-dimensional distribution of light backscattering potential in transparent and semi-transparent structures
    Patent number: 6137585
    Abstract: An apparatus is disclosed for generating data representative of a three-dimensional distribution of the light backscattering potential of a transparent or semi-transparent object such as a human eye. The apparatus includes an interferometer, both the reference beam and measurement beam of which are directed toward the object and reflected by respective reference and measurement sites thereof, such that axial motion of the object during measurement affects both beams equally. The measurement beam is raster scanned transversely across each measurement site for which data is obtained. Also, the frequency of one of the beams is shifted by a non-moving frequency shifter, such that the reflected beams combine and are modulated by a heterodyne beat frequency, which is detected when the object path difference is matched with the interferometer path difference.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: October 24, 2000
    Assignee: Laser Diagnostic Technologies, Inc.
    Inventors: Christoph Hitzenberger, Angela Baumgartner