Patents by Inventor J. Richard Rahn

J. Richard Rahn 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).

  • Patent number: 8947510
    Abstract: A method for 3D imaging of a biologic object (1) in an optical tomography system where a subcellular structure of a biological object (1) is labeled by introducing at least one nanoparticle-biomarker. The labeled biological object (1) is moved relatively to a microscope objective (62) to present varying angles of view and the labeled biological object (1) is illuminated with radiation having wavelengths between 150 nm and 900 nm. Radiation transmitted through the labeled biological object (1) and the microscope objective (62) within at least one wavelength bands is sensed with a color camera, or with a set of at least four monochrome cameras. A plurality of cross-sectional images of the biological object (1) from the sensed radiation is formed and reconstructed to make a 3D image of the labeled biological object (1).
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: February 3, 2015
    Assignee: Visiongate, Inc.
    Inventors: Michael G. Meyer, J. Richard Rahn, Anna V. Tourovskaia, Julia Oi Yan Yu, Christy A Lancaster, Thomas Neumann, Mark E. Fauver
  • Patent number: 8368035
    Abstract: A method for 3D imaging of cells in an optical tomography system includes moving a biological object relatively to a microscope objective to present varying angles of view. The biological object is illuminated with radiation having a spectral bandwidth limited to wavelengths between 150 nm and 390 nm. Radiation transmitted through the biological object and the microscope objective is sensed with a camera from a plurality of differing view angles. A plurality of pseudoprojections of the biological object from the sensed radiation is formed and the plurality of pseudoprojections is reconstructed to form a 3D image of the cell.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: February 5, 2013
    Assignee: Visiongate Inc.
    Inventors: Eric J. Seibel, Alan C. Nelson, Mark E. Fauver, J. Richard Rahn
  • Publication number: 20120145926
    Abstract: A method for 3D imaging of cells in an optical tomography system includes moving a biological object relatively to a microscope objective to present varying angles of view. The biological object is illuminated with radiation having a spectral bandwidth limited to wavelengths between 150 nm and 390 nm. Radiation transmitted through the biological object and the microscope objective is sensed with a camera from a plurality of differing view angles. A plurality of pseudoprojections of the biological object from the sensed radiation is formed and the plurality of pseudoprojections is reconstructed to form a 3D image of the cell.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 14, 2012
    Applicant: VISIONGATE, INC.
    Inventors: Eric J. Seibel, Alan C. Nelson, Mark E. Fauver, J. Richard Rahn
  • Publication number: 20120105600
    Abstract: A method for 3D imaging of a biologic object (1) in an optical tomography system where a subcellular structure of a biological object (1) is labeled by introducing at least one nanoparticle-biomarker. The labeled biological object (1) is moved relatively to a microscope objective (62) to present varying angles of view and the labeled biological object (1) is illuminated with radiation having wavelengths between 150 nm and 900 nm. Radiation transmitted through the labeled biological object (1) and the microscope objective (62) within at least one wavelength bands is sensed with a color camera, or with a set of at least four monochrome cameras. A plurality of cross-sectional images of the biological object (1) from the sensed radiation is formed and reconstructed to make a 3D image of the labeled biological object (1).
    Type: Application
    Filed: June 8, 2009
    Publication date: May 3, 2012
    Inventors: Michael G. Meyer, J. Richard Rahn, Anna V. Tourovskaia, Julia Oi Yan Yu, Christy A. Lancaster, Thomas Neumann, Mark E. Fauver
  • Patent number: 8155420
    Abstract: A system and method for detecting poor quality images in an optical tomography system includes an acquisition apparatus for acquiring a set of pseudo-projection images of an object having a center of mass, where each of the set of pseudo-projection images is acquired at a different angle of view. A reconstruction apparatus is coupled to receive the pseudo-projection images, for reconstruction of the pseudo-projection images into 3D reconstruction images. A quality apparatus is coupled to receive the 3D reconstruction images and operates to detect of selected features that characterize poor quality reconstructions.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: April 10, 2012
    Assignee: Visiongate, Inc
    Inventors: Michael G. Meyer, Rahul Katdare, David Ethan Steinhauer, J. Richard Rahn
  • Patent number: 8143600
    Abstract: A method for 3D imaging of cells in an optical tomography system includes moving a biological object relatively to a microscope objective to present varying angles of view. The biological object is illuminated with radiation having a spectral bandwidth limited to wavelengths between 150 nm and 390 nm. Radiation transmitted through the biological object and the microscope objective is sensed with a camera from a plurality of differing view angles. A plurality of pseudoprojections of the biological object from the sensed radiation is formed and the plurality of pseudoprojections is reconstructed to form a 3D image of the cell.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: March 27, 2012
    Assignee: Visiongate, Inc.
    Inventors: Eric J. Seibel, Alan C. Nelson, Mark E. Fauver, J. Richard Rahn
  • Patent number: 7933010
    Abstract: An optical tomography system for viewing an object of interest includes a microcapillary tube viewing area for positioning the object of interest in an optical path including a detector. A motor is located to attach to and rotate a microcapillary tube. A device is arranged for transmitting broadband light having wavelengths between 550 nm and 620 nm into the microcapillary tube viewing area. A hyperchromatic lens is located to receive light transmitted through the microcapillary tube viewing area. A tube lens is located to focus light rays transmitted through the hyperchromatic lens, such that light rays from multiple object planes in the microcapillary tube viewing area simultaneously focus on the at least one detector.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: April 26, 2011
    Inventors: J. Richard Rahn, John W. Hayenga
  • Patent number: 7907765
    Abstract: An optical tomography system for imaging an object of interest including a light source for illuminating the object of interest with a plurality of radiation beams. The object of interest is held within an object containing tube such that it is illuminated by the plurality of radiation beams to produce emerging radiation from the object containing tube, a detector array is located to receive the emerging radiation and produce imaging data used by a mechanism for tracking the object of interest.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: March 15, 2011
    Assignees: University of Washington, Visiongate, Inc.
    Inventors: Mark E. Fauver, Eric J. Seibel, Michael G. Meyer, Alan C. Nelson, J. Richard Rahn, Thomas Neumann, Roger H. Johnson
  • Publication number: 20100321786
    Abstract: An optical tomography system for viewing an object of interest includes a microcapillary tube viewing area for positioning the object of interest in an optical path including a detector. A motor is located to attach to and rotate a microcapillary tube. A device is arranged for transmitting broadband light having wavelengths between 550 nm and 620 nm into the microcapillary tube viewing area. A hyperchromatic lens is located to receive light transmitted through the microcapillary tube viewing area. A tube lens is located to focus light rays transmitted through the hyperchromatic lens, such that light rays from multiple object planes in the microcapillary tube viewing area simultaneously focus on the at least one detector.
    Type: Application
    Filed: August 24, 2010
    Publication date: December 23, 2010
    Applicant: VISIONGATE, INC.
    Inventors: J. Richard Rahn, John W. Hayenga
  • Publication number: 20100322494
    Abstract: An optical tomography system for imaging an object of interest including a light source for illuminating the object of interest with a plurality of radiation beams. The object of interest is held within an object containing tube such that it is illuminated by the plurality of radiation beams to produce emerging radiation from the object containing tube, a detector array is located to receive the emerging radiation and produce imaging data used by a mechanism for tracking the object of interest.
    Type: Application
    Filed: September 18, 2006
    Publication date: December 23, 2010
    Applicants: University of Washington, VISIONGATE, INC.
    Inventors: Mark E. Fauver, Eric J. Seibel, Michael G. Meyer, Alan C. Nelson, J. Richard Rahn, Thomas Neumann, Roger H. Johnson
  • Publication number: 20100296713
    Abstract: A system and method for detecting poor quality images in an optical tomography system includes an acquisition apparatus for acquiring a set of pseudo-projection images of an object having a center of mass, where each of the set of pseudo-projection images is acquired at a different angle of view. A reconstruction apparatus is coupled to receive the pseudo-projection images, for reconstruction of the pseudo-projection images into 3D reconstruction images. A quality apparatus is coupled to receive the 3D reconstruction images and operates to detect of selected features that characterize poor quality reconstructions.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 25, 2010
    Applicant: VISIONGATE, INC.
    Inventors: Michael G. Meyer, Rahul Katdare, David E. Steinhauer, J. Richard Rahn
  • Patent number: 7835561
    Abstract: A method for reconstructing three-dimensional (3D) tomographic images. A set of pseudo-projection images of an object is acquired. Error corrections are applied to the set of pseudo-projection images to produce a set of corrected pseudo-projection images. The set of corrected pseudo-projection images are processed to produce (3D) tomographic images.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: November 16, 2010
    Assignee: VisionGate, Inc.
    Inventors: Michael G. Meyer, J. Richard Rahn, Mark E. Fauver
  • Patent number: 7811825
    Abstract: A scanning method for scanning samples of biological cells using optical tomography includes preparing, acquiring, reconstructing and viewing three-dimensional images of cell samples. Concentration and enrichment of the cell sample follows. The cell sample is stained. Cells are isolated from the cell sample and purified. A cell/solvent mixture is injected into a gel by centrifugation. A cell/gel mixture is injected into a capillary tube until a cell appears centered in a field of view using a stopped-flow method. An optical imaging system, such as a fixed or variable motion optical tomography system acquires a projection image. The sample is rotated about a tube axis to generate additional projections. Once image acquisition is completed, the acquired image projections are corrected for errors. A computer or other equivalent processor is used to compute filtered backprojection information for 3D reconstruction.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: October 12, 2010
    Assignees: University of Washington, VisionGate, Inc.
    Inventors: Mark E. Fauver, J. Richard Rahn, Eric J. Seibel, Alan C. Nelson
  • Patent number: 7787112
    Abstract: An optical projection tomography system is illuminated with a light source. An object-containing tube, a portion of which is located within the region illuminated by the light source, contains an object of interest that has a feature of interest. A detector is located to receive emerging radiation from the object of interest. A lens, including optical field extension elements, is located in the optical path between the object region and the detector, such that light rays from multiple object planes in the object-containing tube simultaneously focus on the detector. The object-containing tube moves relatively to the detector and the lens operate to provide multiple views of the object region for producing an image of the feature of interest at each view.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: August 31, 2010
    Assignee: Visiongate, Inc.
    Inventors: J. Richard Rahn, Jon W. Hayenga
  • Patent number: 7738945
    Abstract: A system for optical imaging of a thick specimen that permits rapid acquisition of data necessary for tomographic reconstruction of the three-dimensional (3D) image. One method involves the scanning of the focal plane of an imaging system and integrating the range of focal planes onto a detector. The focal plane of an optical imaging system is scanned along the axis perpendicular to said plane through the thickness of a specimen during a single detector exposure. Secondly, methods for reducing light scatter when using illumination point sources are presented. Both approaches yield shadowgrams. This process is repeated from multiple perspectives, either in series using a single illumination/detection subsystem, or in parallel using several illumination/detection subsystems. A set of pseudo-projections is generated, which are input to a three dimensional tomographic image reconstruction algorithm.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: June 15, 2010
    Assignees: University of Washington, VisionGate, Inc.
    Inventors: Mark E. Fauver, J. Richard Rahn, Eric J. Seibel, Alan C. Nelson
  • Publication number: 20090208072
    Abstract: A method for 3D imaging of cells in an optical tomography system includes moving a biological object relatively to a microscope objective to present varying angles of view. The biological object is illuminated with radiation having a spectral bandwidth limited to wavelengths between 150 nm and 390 nm. Radiation transmitted through the biological object and the microscope objective is sensed with a camera from a plurality of differing view angles. A plurality of pseudoprojections of the biological object from the sensed radiation is formed and the plurality of pseudoprojections is reconstructed to form a 3D image of the cell.
    Type: Application
    Filed: February 18, 2008
    Publication date: August 20, 2009
    Applicant: VISIONGATE, INC.
    Inventors: Eric J. Seibel, Alan C. Nelson, Mark E. Fauver, J. Richard Rahn
  • Publication number: 20090103792
    Abstract: An optical projection tomography system is illuminated with a light source. An object-containing tube, a portion of which is located within the region illuminated by the light source, contains an object of interest that has a feature of interest. A detector is located to receive emerging radiation from the object of interest. A lens, including optical field extension elements, is located in the optical path between the object region and the detector, such that light rays from multiple object planes in the object-containing tube simultaneously focus on the detector. The object-containing tube moves relatively to the detector and the lens operate to provide multiple views of the object region for producing an image of the feature of interest at each view.
    Type: Application
    Filed: October 22, 2007
    Publication date: April 23, 2009
    Applicant: VISIONGATE, INC.
    Inventors: J. Richard Rahn, Jon W. Hayenga
  • Publication number: 20080285827
    Abstract: A method for reconstructing three-dimensional (3D) tomographic images. A set of pseudo-projection images of an object is acquired. Error corrections are applied to the set of pseudo-projection images to produce a set of corrected pseudo-projection images. The set of corrected pseudo-projection images are processed to produce (3D) tomographic images.
    Type: Application
    Filed: May 18, 2007
    Publication date: November 20, 2008
    Applicant: VISIONGATE, INC.
    Inventors: Michael G. Meyer, J. Richard Rahn, Mark E. Fauver
  • Patent number: 6741730
    Abstract: Two or more two-dimensional Fourier transforms are acquired from different perspectives of a three-dimensional object region. A three-dimensional Fourier transform is then constructed using tomographic methods, permitting the application of image analysis algorithms analogous to those used for two-dimensional images.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: May 25, 2004
    Assignee: Visiongate, Inc.
    Inventors: J. Richard Rahn, Alan C. Nelson
  • Publication number: 20040076319
    Abstract: A system for optical imaging of a thick specimen that permits rapid acquisition of data necessary for tomographic reconstruction of the three-dimensional (3D) image. One method involves the scanning of the focal plane of an imaging system and integrating the range of focal planes onto a detector. The focal plane of an optical imaging system is scanned along the axis perpendicular to said plane through the thickness of a specimen during a single detector exposure. Secondly, methods for reducing light scatter when using illumination point sources are presented. Both approaches yield shadowgrams. This process is repeated from multiple perspectives, either in series using a single illumination/detection subsystem, or in parallel using several illumination/detection subsystems. A set of pseudo-projections is generated, which are input to a three dimensional tomographic image reconstruction algorithm.
    Type: Application
    Filed: November 18, 2003
    Publication date: April 22, 2004
    Inventors: Mark E. Fauver, J. Richard Rahn, Eric J. Seibel, Alan C. Nelson