Patents by Inventor Robert H. Hart

Robert H. Hart 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).

  • Publication number: 20140293224
    Abstract: Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventors: Eric L. Buckland, Nestor O. Farmiga, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Patent number: 8797530
    Abstract: Wavenumber linear spectrometers are provided including an input configured to receive electromagnetic radiation from an external source; collimating optics configured to collimate the received electromagnetic radiation; a dispersive assembly including first and second diffractive gratings, wherein the first diffraction grating is configured in a first dispersive stage to receive the collimated electromagnetic radiation and wherein the dispersive assembly includes at least two dispersive stages configured to disperse the collimated input; and an imaging lens assembly configured to image the electromagnetic radiation dispersed by the at least two dispersive stages onto a linear detection array such that the variation in frequency spacing along the linear detection array is no greater than about 10%.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: August 5, 2014
    Assignee: Bioptigen, Inc.
    Inventors: Christopher Saxer, Robert H. Hart, Eric L. Buckland, Pete Huening, Bradley A. Bower
  • Patent number: 8783866
    Abstract: OCT imaging systems are provided for imaging a spherical-type eye including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path. The reference arm path has an associated reference arm path length. A sample is also provided having an associated sample arm path coupled to the source arm and reference arm paths. A lens having a focal power optimized for a diameter of the spherical-type eye is provided along with a reference arm path length adjustment module coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye diameter of the subject.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: July 22, 2014
    Assignee: Bioptigen, Inc.
    Inventors: Robert H. Hart, Eric L. Buckland, Glenn A. Myers, Joseph A. Izatt
  • Patent number: 8777412
    Abstract: Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 15, 2014
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Nestor O. Farmiga, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Publication number: 20140160431
    Abstract: Optical coherence tomography systems for imaging a whole eye are provided including a sample arm including focal optics that are configured to rapidly switch between at least two scanning modes in less than about 1.0 second.
    Type: Application
    Filed: January 6, 2014
    Publication date: June 12, 2014
    Applicant: Bioptigen, Inc.
    Inventors: Joseph A. Izatt, Eric L. Buckland, Bradley A. Bower, Robert H. Hart
  • Publication number: 20140125952
    Abstract: Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye length of the subject. Related methods and computer program products are also provided.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 8, 2014
    Applicant: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Robert H. Hart, Glenn A. Myers, Joseph A. Izatt
  • Patent number: 8668336
    Abstract: Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye length of the subject. Related methods and computer program products are also provided.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: March 11, 2014
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Robert H. Hart, Glenn A. Myers, Joseph A. Izatt
  • Patent number: 8625104
    Abstract: Optical coherence tomography systems for imaging a whole eye are provided including a sample arm including focal optics that are configured to rapidly switch between at least two scanning modes in less than about 1.0 second.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: January 7, 2014
    Assignee: Bioptigen, Inc.
    Inventors: Joseph A. Izatt, Eric L. Buckland, Bradley A. Bower, Robert H. Hart
  • Publication number: 20130265545
    Abstract: Some embodiments of the present inventive concept provide optical coherence tomography (OCT) systems for integration with a microscope. The OCT system includes a sample arm coupled to the imaging path of a microscope. The sample arm includes an input beam zoom assembly including at least two movable lenses configured to provide shape control for an OCT signal beam; a scan assembly including at least one scanning mirror and configured for telecentric scanning of the OCT signal beam; and a beam expander configured to set the OCT signal beam diameter incident on the microscope objective. The shape control includes separable controls for numerical aperture and focal position of the imaged OCT beam.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 10, 2013
    Applicant: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Nestor O. Farmiga, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Publication number: 20130235344
    Abstract: Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye length of the subject. Related methods and computer program products are also provided.
    Type: Application
    Filed: April 15, 2013
    Publication date: September 12, 2013
    Applicant: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Robert H. Hart, Glenn A. Myers, Joseph A. Izatt
  • Patent number: 8421855
    Abstract: Optical coherence tomography (OCT) imaging systems for imaging an eye are provided including a source having an associated source arm path and a reference arm having an associated reference arm path coupled to the source path, the reference arm path having an associated reference arm path length. A sample having an associated sample arm path coupled to the source arm and reference arm paths is provided. A reference arm path length adjustment module is coupled to the reference arm. The reference arm path length adjustment module is configured to automatically adjust the reference arm path length such that the reference arm path length is based on an eye length of the subject. Related methods and computer program products are also provided.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: April 16, 2013
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Robert H. Hart, Glenn A. Myers, Joseph A. Izatt
  • Patent number: 8348427
    Abstract: Systems for extended depth frequency domain optical coherence tomography are provided including a detection system configured to sample spectral elements at substantially equal frequency intervals, wherein a spectral width associated with the sampled spectral elements is not greater than one-half of the frequency interval. Related methods are also provided herein.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: January 8, 2013
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Joseph A. Izatt, Bradley A. Bower, Robert H. Hart
  • Patent number: 8310674
    Abstract: A spectrometer is provided including a camera and an axial symmetric camera mount configured to receive the camera and to rotate. The spectrometer furthers include an input for providing optical radiation to a spectrometer system; a diffraction grating for dispersing the optical radiation along a prescribed plane; at least one lens for focusing wavelength-dispersed light onto at least one array of a detector of optical radiation, wherein the camera has at least one linear array of elements for detecting optical radiation; a mechanical housing, wherein the axial symmetric camera mount is configured to couple the camera to the mechanical housing; and a means for rotating the camera coupled to the mechanical housing about an axis. Related systems and methods are also provided.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: November 13, 2012
    Assignee: Bioptigen, Inc.
    Inventors: Pete Huening, Robert H. Hart, Eric L. Buckland
  • Publication number: 20120242988
    Abstract: Wavenumber linear spectrometers are provided including an input configured to receive electromagnetic radiation from an external source; collimating optics configured to collimate the received electromagnetic radiation; a dispersive assembly including first and second diffractive gratings, wherein the first diffraction grating is configured in a first dispersive stage to receive the collimated electromagnetic radiation and wherein the dispersive assembly includes at least two dispersive stages configured to disperse the collimated input; and an imaging lens assembly configured to image the electromagnetic radiation dispersed by the at least two dispersive stages onto a linear detection array such that the variation in frequency spacing along the linear detection array is no greater than about 10%.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 27, 2012
    Inventors: Christopher Saxer, Robert H. Hart, Eric L. Buckland, Pete Huening, Bradley A. Bower
  • Publication number: 20120224174
    Abstract: A spectrometer is provided including a camera and an axial symmetric camera mount configured to receive the camera and to rotate. The spectrometer furthers include an input for providing optical radiation to a spectrometer system; a diffraction grating for dispersing the optical radiation along a prescribed plane; at least one lens for focusing wavelength-dispersed light onto at least one array of a detector of optical radiation, wherein the camera has at least one linear array of elements for detecting optical radiation; a mechanical housing, wherein the axial symmetric camera mount is configured to couple the camera to the mechanical housing; and a means for rotating the camera coupled to the mechanical housing about an axis. Related systems and methods are also provided.
    Type: Application
    Filed: May 10, 2012
    Publication date: September 6, 2012
    Inventors: Pete Huening, Robert H. Hart, Eric L. Buckland
  • Publication number: 20120162602
    Abstract: Some embodiments of the present inventive concept provide an accessory frame including an optical coherence tomography (OCT) imaging head. The accessory frame includes a mounting plate including a microscope field lens attachment port and a microscope field plate anchor pin. The mounting plate is configured to receive an intermediate field lens in the microscope field lens attachment port such that the accessory frame shares the mounting plate in common with an intermediate field lens.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Inventors: Pete Huening, Eric L. Buckland, Robert H. Hart
  • Patent number: 8189192
    Abstract: A Spectrometer is provided including a camera and an axial symmetric camera mount configured to receive the camera and to rotate. The spectrometer furthers include an input for providing optical radiation to a spectrometer system; a diffraction grating for dispersing the optical radiation along a prescribed plane; at least one lens for focusing wavelength-dispersed light onto at least one array of a detector of optical radiation, wherein the camera has at least one linear array of elements for detecting optical radiation; a mechanical housing, wherein the axial symmetric camera mount is configured to couple the camera to the mechanical housing; and a means for rotating the camera coupled to the mechanical housing about an axis. Related systems and methods are also provided.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: May 29, 2012
    Assignee: Bioptigen, Inc.
    Inventors: Pete Huening, Robert H. Hart, Eric L. Buckland
  • Publication number: 20120033227
    Abstract: Systems for imaging a sample are provided. The system includes an optical coherence tomography (OCT) imaging portion having an associated OCT path defined by one set of optical elements between an OCT signal delivery optical fiber and the sample; an image capture portion having an associated image capture path defined by a second set of optical elements between an image capture device and the sample, different from the OCT path; and an illuminator portion having an associated illumination path defined by a third set of optical elements between an illumination source and the sample. The OCT path, the image capture path, and the illuminator path have at least one optical element in common, and the respective paths differ from each other by at least one optical element. The OCT path and the image capture path share a common intermediate conjugate image plane.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 9, 2012
    Inventors: Bradley A. Bower, Robert H. Hart, Pete Huening, Eric L. Buckland
  • Publication number: 20110102802
    Abstract: Optical coherence tomography systems for imaging a whole eye are provided including a sample arm including focal optics that are configured to rapidly switch between at least two scanning modes in less than about 1.0 second.
    Type: Application
    Filed: October 22, 2010
    Publication date: May 5, 2011
    Inventors: Joseph A. Izatt, Eric L. Buckland, Bradley A. Bower, Robert H. Hart
  • Publication number: 20110096291
    Abstract: Systems for extended depth frequency domain optical coherence tomography are provided including a detection system configured to sample spectral elements at substantially equal frequency intervals, wherein a spectral width associated with the sampled spectral elements is not greater than one-half of the frequency interval. Related methods are also provided herein.
    Type: Application
    Filed: September 22, 2010
    Publication date: April 28, 2011
    Inventors: Eric L. Buckland, Joseph A. Izatt, Bradley A. Bower, Robert H. Hart