Patents by Inventor Daniel X. Hammer

Daniel X. Hammer 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: 20140247427
    Abstract: An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser ophthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic.
    Type: Application
    Filed: April 22, 2014
    Publication date: September 4, 2014
    Applicant: Physical Science, Inc.
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicursor V. Iftimia, Chad Bigelow
  • Publication number: 20140247425
    Abstract: An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 4, 2014
    Applicant: Physical Sciences, Inc.
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Anket H. Patel, Nicusor V. Iftimia, Stephen Burns
  • Patent number: 8770751
    Abstract: A method of imaging a retina of an eye includes combining an optical path of an optical coherence tomography (OCT) imager and an optical path of a line scanning laser ophthalmoscope (LSLO) imager using a system of optics. The method also includes using a single detector to switch between an OCT mode and a LSLO mode and acquiring images of the retina while switching between the OCT mode and the LSLO mode.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: July 8, 2014
    Assignee: Physical Sciences, Inc.
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow
  • Patent number: 8696122
    Abstract: An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: April 15, 2014
    Assignee: Physical Sciences, Inc.
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Anket H. Patel, Nicusor V. Iftimia, Stephen Burns
  • Publication number: 20130229620
    Abstract: A retinal imaging device includes an optical system configured to (i) scan a portion of the retina of the eye with a line of light, (ii) descan reflected light from the scanned portion of the retina, and (iii) provide output light in a line focus configuration. The device includes a detection device including a linear array of asymmetric pixels having at least a 2:1 ratio of length to width, a detection device with multiple adjacent linear arrays, and/or a detection device using a time delay and integration (TDI) architecture.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 5, 2013
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Nicusor V. Iftimia
  • Patent number: 8444268
    Abstract: A system provides an optical image of an object. A first module tracks a reference feature of the object. A second module includes a source for an imaging beam, a scanning device to move the imaging beam along a portion of the object and a detection device receives a signal associated with an image of the portion of the object. The first module controls the position of the imaging beam relative to the reference feature to correct for the motion of the object. A third module detects a distortion of the object and compensates for the distortion.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: May 21, 2013
    Assignee: Physical Sciences, Inc.
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Nicusor V. Iftimia, Teoman E. Ustun
  • Patent number: 8201943
    Abstract: A first optical module scans a portion of an eye with a line of light, descans reflected light from the scanned portion of the eye and confocally provides output light in a line focus configuration. A detection device detects the output light and images the portion of the eye. A second optical module detects an optical distortion and corrects the optical distortion in the line of light scanned on the portion of the eye.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: June 19, 2012
    Assignee: Physical Sciences, Inc.
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Nicusor V. Iftimia
  • Publication number: 20120101390
    Abstract: Epithelial cancer screening can include a staining tissue with a cancer targeting agent, identifying a potentially cancerous lesion using fluorescence imaging, and imaging the potentially cancerous lesion for a cancer diagnosis using optical coherence tomography.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 26, 2012
    Inventors: Nicusor V. Iftimia, Niyom Lue, Daniel X. Hammer, Mircea Mujat, R. Daniel Ferguson
  • Publication number: 20120062843
    Abstract: A method of imaging a retina of an eye includes combining an optical path of an optical coherence tomography (OCT) imager and an optical path of a line scanning laser ophthalmoscope (LSLO) imager using a system of optics. The method also includes using a single detector to switch between an OCT mode and a LSLO mode and acquiring images of the retina while switching between the OCT mode and the LSLO mode.
    Type: Application
    Filed: September 20, 2011
    Publication date: March 15, 2012
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow
  • Patent number: 8033665
    Abstract: An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser ophthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 11, 2011
    Assignee: Physical Sciences, Inc.
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow
  • Publication number: 20110234978
    Abstract: An optical apparatus includes a system of optical components capable of operating in a scanning laser ophthalmoscope (SLO) mode and an optical coherence tomography (OCT) mode. The system of optical components includes a first optical module for the SLO mode, a second optical module for the OCT mode, and a first scanning device. The first optical module for the SLO mode includes a first source adapted to provide a first imaging beam for the SLO mode and a first detection device configured to receive a first signal associated with a first image of a retina of an eye. The second optical module for the OCT mode includes a second source adapted to provide a second imaging beam for the OCT mode and a second detection device configured to receive a second signal associated with a second image of the retina.
    Type: Application
    Filed: January 21, 2011
    Publication date: September 29, 2011
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Anket H. Patel, Nicusor V. Iftimia, Stephen Burns
  • Publication number: 20110152845
    Abstract: A system provides an optical image of an object. A first module tracks a reference feature of the object. A second module includes a source for an imaging beam, a scanning device to move the imaging beam along a portion of the object and a detection device receives a signal associated with an image of the portion of the object. The first module controls the position of the imaging beam relative to the reference feature to correct for the motion of the object. A third module detects a distortion of the object and compensates for the distortion.
    Type: Application
    Filed: January 19, 2011
    Publication date: June 23, 2011
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Nicusor V. Iftimia, Teoman E. Ustun
  • Publication number: 20110085136
    Abstract: An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser ophthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic.
    Type: Application
    Filed: December 9, 2010
    Publication date: April 14, 2011
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow
  • Patent number: 7896496
    Abstract: A system provides an optical image of an object. A first module tracks a reference feature of the object. A second module includes a source for an imaging beam, a scanning device to move the imaging beam along a portion of the object and a detection device receives a signal associated with an image of the portion of the object. The first module controls the position of the imaging beam relative to the reference feature to correct for the motion of the object. A third module detects a distortion of the object and compensates for the distortion.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: March 1, 2011
    Assignee: Physical Sciences, Inc.
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Nicusor V. Iftimia, Teoman E. Ustun
  • Patent number: 7866821
    Abstract: An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser opthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: January 11, 2011
    Assignee: Physical Sciences, Inc.
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow
  • Publication number: 20100253908
    Abstract: A system provides an optical image of an object. A first module tracks a reference feature of the object. A second module includes a source for an imaging beam, a scanning device to move the imaging beam along a portion of the object and a detection device receives a signal associated with an image of the portion of the object. The first module controls the position of the imaging beam relative to the reference feature to correct for the motion of the object. A third module detects a distortion of the object and compensates for the distortion.
    Type: Application
    Filed: June 17, 2010
    Publication date: October 7, 2010
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Nicusor V. Iftimia, Teoman E. Ustun
  • Publication number: 20100195048
    Abstract: A first optical module scans a portion of an eye with a line of light, descans reflected light from the scanned portion of the eye and confocally provides output light in a line focus configuration. A detection device detects the output light and images the portion of the eye. A second optical module detects an optical distortion and corrects the optical distortion in the line of light scanned on the portion of the eye.
    Type: Application
    Filed: January 15, 2010
    Publication date: August 5, 2010
    Applicant: Physical Sciences, Inc.
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Mircea Mujat, Nicusor V. Iftimia
  • Patent number: 7758189
    Abstract: A system provides an optical image of an object. A first module tracks a reference feature of the object. A second module includes a source for an imaging beam, a scanning device to move the imaging beam along a portion of the object and a detection device receives a signal associated with an image of the portion of the object. The first module controls the position of the imaging beam relative to the reference feature to correct for the motion of the object. A third module detects a distortion of the object and compensates for the distortion.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: July 20, 2010
    Assignee: Physical Sciences, Inc.
    Inventors: Daniel X. Hammer, R. Daniel Ferguson, Nicusor V. Iftimia, Teoman E. Ustun
  • Publication number: 20100073634
    Abstract: An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser opthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic.
    Type: Application
    Filed: December 3, 2009
    Publication date: March 25, 2010
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow
  • Patent number: 7648242
    Abstract: An apparatus for imaging an eye includes a housing and a system of optical components disposed in the housing. The apparatus is capable of operating in a line scanning laser ophthalmoscope (LSLO) mode and an optical coherence tomography (OCT) mode. The system of optical components can include a first source to provide a first beam of light for the OCT mode and a second source to provide a second beam of light for the LSLO mode. In the OCT mode, a first optic is used that (i) scans, using a first surface of the first optic, the first beam of light along a retina of an eye in a first dimension, and (ii) descans, using the first surface, a first light returning from the eye in the first dimension to a detection system in the OCT mode. In the LSLO mode, the first optic is used where the second beam of light passes through a second surface of the first optic.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: January 19, 2010
    Assignee: Physical Sciences, Inc.
    Inventors: R. Daniel Ferguson, Daniel X. Hammer, Nicusor V. Iftimia, Chad Bigelow