Patents by Inventor Nestor O. Farmiga

Nestor O. Farmiga 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: 20190200854
    Abstract: A model eye for use with an imaging system is provided. The model eye includes a shape that mimics a shape of a real eye of a subject and focal parameters of the real eye of the subject. The model eye is positioned in the imaging system in place of the real eye to assess and/or calibrate the imaging system. Related methods, systems and devices are also provided herein.
    Type: Application
    Filed: January 3, 2018
    Publication date: July 4, 2019
    Inventors: Andrew Murnan, Nestor O. Farmiga, Christopher Saxer, Al-Hafeez Z. Dhalla, Eric L. Buckland, Robert H. Hart
  • Patent number: 10271725
    Abstract: Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: April 30, 2019
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Andrew Murnan, Nestor O. Farmiga, Robert H. Hart, Christopher Saxer
  • Patent number: 10048057
    Abstract: An optical coherence tomography (OCT) system including a source of broadband optical radiation and a beamsplitter coupled to the source is provided. The beamsplitter divides the source radiation into a reference path and a sample path. The reference path includes an optical switch to switch the reference path between a first path having a first reference reflection at a first reference optical path length and a second path having a second reference reflection at a second reference optical path length. The system further includes a beam combiner that mixes source radiation reflected from a subject in the sample path with source radiation returned from the first reference reflection and the second reference reflection. A detection system detects a first wavelength dependent interferogram during the first time interval and a second wavelength dependent interferogram during the second time interval. A processor preconditions the first and second wavelength dependent interferograms.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: August 14, 2018
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Al-Hafeez Z. Dhalla, Nestor O. Farmiga, Mehran Ghofrani, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Patent number: 9949634
    Abstract: Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: April 24, 2018
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Andrew Murnan, Nestor O. Farmiga, Robert H. Hart, Christopher Saxer
  • Publication number: 20180084993
    Abstract: Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 29, 2018
    Inventors: Eric L. Buckland, Andrew Murnan, Nestor O. Farmiga, Robert H. Hart, Christopher Saxer
  • Patent number: 9924863
    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: August 25, 2016
    Date of Patent: March 27, 2018
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Nestor O. Farmiga, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Publication number: 20160360961
    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: August 25, 2016
    Publication date: December 15, 2016
    Inventors: Eric L. Buckland, Nestor O. Farmiga, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Patent number: 9513453
    Abstract: A ball cage centered lens assembly is provided including an axially thick lens; an outer mechanical cell; an intermediate cage positioned between the axially thick lens and the outer mechanical cell; a plurality of deformable elements positioned within the cage, between the axially thick lens and the mechanical cell, and in contact with the axially thick lens and the outer mechanical cell.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: December 6, 2016
    Assignee: Bioptigen, Inc.
    Inventor: Nestor O. Farmiga
  • Patent number: 9498121
    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: June 22, 2015
    Date of Patent: November 22, 2016
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Nestor O. Farmiga, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Publication number: 20160298953
    Abstract: An optical coherence tomography (OCT) system including a source of broadband optical radiation and a beamsplitter coupled to the source is provided. The beamsplitter divides the source radiation into a reference path and a sample path. The reference path includes an optical switch to switch the reference path between a first path having a first reference reflection at a first reference optical path length and a second path having a second reference reflection at a second reference optical path length. The system further includes a beam combiner that mixes source radiation reflected from a subject in the sample path with source radiation returned from the first reference reflection and the second reference reflection. A detection system detects a first wavelength dependent interferogram during the first time interval and a second wavelength dependent interferogram during the second time interval. A processor preconditions the first and second wavelength dependent interferograms.
    Type: Application
    Filed: June 23, 2016
    Publication date: October 13, 2016
    Inventors: Eric L. Buckland, Al-Hafeez Z. Dhalla, Nestor O. Farmiga, Mehran Ghofrani, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Patent number: 9402540
    Abstract: Scanning optical beam imaging systems for imaging extended structures of an eye and providing biometry of an eye are provided. The systems include a focal system for shifting the focus of the scanning system from the front to the back of the eye. The systems provide for converging rays that can scan through the pupil of the eye, enabling scanning of the anterior and posterior segments of the eye using a common objective and a fixed working distance.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: August 2, 2016
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Andrew Murnan, Christopher Saxer, Robert H. Hart, Nestor O. Farmiga
  • Patent number: 9377291
    Abstract: An optical coherence tomography (OCT) system including a source of broadband optical radiation and a beamsplitter coupled to the source is provided. The beamsplitter divides the source radiation into a reference path and a sample path. The reference path includes an optical switch to switch the reference path between a first path having a first reference reflector at a first reference optical path length and a second path having a second reference reflector at a second reference optical path length, different from the first reference optical path length. The system further includes a beam combiner that mixes source radiation reflected from a subject in the sample path with source radiation returned from the first reference reflector during a first time interval and the second reference reflector during a second time interval. A detection system detects a first wavelength dependent interferogram during the first time interval and a second wavelength dependent interferogram during the second time interval.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: June 28, 2016
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Al-Hafeez Z. Dhalla, Nestor O. Farmiga, Mehran Ghofrani, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Publication number: 20150335238
    Abstract: Scanning optical beam imaging systems for imaging extended structures of an eye and providing biometry of an eye are provided. The systems include a focal system for shifting the focus of the scanning system from the front to the back of the eye. The systems provide for converging rays that can scan through the pupil of the eye, enabling scanning of the anterior and posterior segments of the eye using a common objective and a fixed working distance.
    Type: Application
    Filed: July 22, 2015
    Publication date: November 26, 2015
    Inventors: Eric L. Buckland, Andrew Murnan, Christopher Saxer, Robert H. Hart, Nestor O. Farmiga
  • Publication number: 20150305618
    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 22, 2015
    Publication date: October 29, 2015
    Inventors: Eric L. Buckland, Nestor O. Farmiga, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Patent number: 9119563
    Abstract: Scanning optical beam imaging systems for imaging extended structures of an eye and providing biometry of an eye are provided. The systems include a focal system for shifting the focus of the scanning system from the front to the back of the eye. The systems provide for converging rays that can scan through the pupil of the eye, enabling scanning of the anterior and posterior segments of the eye using a common objective and a fixed working distance.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: September 1, 2015
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Andrew Murnan, Christopher Saxer, Robert H. Hart, Nestor O. Farmiga
  • Patent number: 9060712
    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: June 12, 2014
    Date of Patent: June 23, 2015
    Assignee: Bioptigen, Inc.
    Inventors: Eric L. Buckland, Nestor O. Farmiga, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Publication number: 20150168665
    Abstract: A ball cage centered lens assembly is provided including an axially thick lens; an outer mechanical cell; an intermediate cage positioned between the axially thick lens and the outer mechanical cell; a plurality of deformable elements positioned within the cage, between the axially thick lens and the mechanical cell, and in contact with the axially thick lens and the outer mechanical cell.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 18, 2015
    Inventor: Nestor O. Farmiga
  • Publication number: 20150157203
    Abstract: Scanning optical beam imaging systems for imaging extended structures of an eye and providing biometry of an eye are provided. The systems include a focal system for shifting the focus of the scanning system from the front to the back of the eye. The systems provide for converging rays that can scan through the pupil of the eye, enabling scanning of the anterior and posterior segments of the eye using a common objective and a fixed working distance.
    Type: Application
    Filed: October 14, 2014
    Publication date: June 11, 2015
    Inventors: Eric L. Buckland, Andrew Murnan, Christopher Saxer, Robert H. Hart, Nestor O. Farmiga
  • Publication number: 20150159992
    Abstract: An optical coherence tomography (OCT) system including a source of broadband optical radiation and a beamsplitter coupled to the source is provided. The beamsplitter divides the source radiation into a reference path and a sample path. The reference path includes an optical switch to switch the reference path between a first path having a first reference reflector at a first reference optical path length and a second path having a second reference reflector at a second reference optical path length, different from the first reference optical path length. The system further includes a beam combiner that mixes source radiation reflected from a subject in the sample path with source radiation returned from the first reference reflector during a first time interval and the second reference reflector during a second time interval. A detection system detects a first wavelength dependent interferogram during the first time interval and a second wavelength dependent interferogram during the second time interval.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 11, 2015
    Inventors: Eric L. Buckland, Al-Hafeez Z. Dhalla, Nestor O. Farmiga, Mehran Ghofrani, Robert H. Hart, Andrew Murnan, Christopher Saxer
  • Publication number: 20140354950
    Abstract: Optical coherence tomography (OCT) imaging systems are provided including a source of broadband optical radiation coupled to a sample arm of the OCT imaging system; a beam shaping optical assembly in the sample arm, the beam shaping optical assembly being configured to receive optical radiation from the source as a beam of optical radiation and to shape the spatial profile of the beam of optical radiation; a scan mirror assembly coupled to the beam shaping optical assembly; and objective lens assembly coupled to the beam shaping optical assembly. The beam shaping optical assembly includes a lens assembly configured to change a NA of the OCT system without changing a focus; to change a focus of the OCT system without changing a NA of the system; or to change both the NA and the focus of the OCT system responsive to a control input.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 4, 2014
    Inventors: Eric L. Buckland, Andrew Murnan, Nestor O. Farmiga, Robert H. Hart, Christopher Saxer