Patents by Inventor Michael Brownell

Michael Brownell 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: 20230107167
    Abstract: A vision screening device, a vision screening system, a vision impairment screening device, vision impairment screening system, processes, method of assessments, and methods of use are presented. The present disclosure provides a vision screening system and device, including obtaining flash imagery in order to be used for analysis of visual function. More specifically, and without limitation, the present disclosure provides the state of the art with a system for attracting the gaze of a user and controlling accommodation for obtaining proper imagery as is needed for visual analysis. Furthermore, and without limitation, the present disclosure provides a vision system for capturing visual performance of a user.
    Type: Application
    Filed: October 4, 2021
    Publication date: April 6, 2023
    Applicant: Axiom Innova, Inc.
    Inventors: Michael Brownell, Patrick DeGuzman, Darcy Wendel, David Huang
  • Publication number: 20180098881
    Abstract: System and method of photoaltering a region of an eye using a high resolution digital image of the eye. The system includes a laser assembly for outputting a pulsed laser beam, an imaging system for capturing a real-time high resolution digital image of the eye and displaying the digital image of the eye, a user interface receiving at least one laser parameter input, and a controller coupled to the laser assembly, imaging system, and user interface. The controller directs the laser assembly to output the pulsed laser beam to the region of the eye based on the laser parameter input.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 12, 2018
    Inventors: Keith Watanabe, Jesse Buck, Guy V. Holland, Michael Brownell, Valentina Doushkina
  • Patent number: 9844463
    Abstract: System and method of photoaltering a region of an eye using a high resolution digital image of the eye. The system includes a laser assembly for outputting a pulsed laser beam, an imaging system for capturing a real-time high resolution digital image of the eye and displaying the digital image of the eye, a user interface receiving at least one laser parameter input, and a controller coupled to the laser assembly, imaging system, and user interface. The controller directs the laser assembly to output the pulsed laser beam to the region of the eye based on the laser parameter input.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: December 19, 2017
    Assignee: AMO Development, LLC
    Inventors: Keith Watanabe, Jesse Buck, Guy V. Holland, Michael Brownell, Valentina Doushkina
  • Publication number: 20170290703
    Abstract: An optical interface device having an opening for an optical path that can be non-circular and having engagement members having gradually varying angles of engagement. An embodiment of the interface device can be a one size fits all device, providing a configuration that fits in all typical eye openings, including narrow palpebral fissures and small eyes, while providing optical path access to features and structures of the eye. An embodiment of the interface device engages the limbus, cornea and sclera.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Applicant: Lensar, Inc.
    Inventors: E. Valas Teuma, John McWhirter, Michael Brownell
  • Patent number: 9462943
    Abstract: Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: October 11, 2016
    Assignee: AMO Development, LLC
    Inventor: Michael Brownell
  • Publication number: 20150290032
    Abstract: Embodiments of the present invention encompass systems and techniques for developing a vision prescription for a patient based on an objective optical manifest refraction, such as that measured with a wavefront device, without altering the prescription in response to any subjective manifest refraction, such as that measured with a phoropter device.
    Type: Application
    Filed: April 30, 2015
    Publication date: October 15, 2015
    Inventor: Michael Brownell
  • Publication number: 20140375953
    Abstract: Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot.
    Type: Application
    Filed: September 9, 2014
    Publication date: December 25, 2014
    Inventor: Michael Brownell
  • Patent number: 8852175
    Abstract: Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: October 7, 2014
    Assignee: AMO Development LLC
    Inventor: Michael Brownell
  • Patent number: 8632526
    Abstract: A system for interfacing a surgical laser with an eye includes a first sensing element to couple to an output surface of the laser, an interface lens having second sensing element coupled to a first surface of the interface lens, and a detector coupled to the first sensing element. A second surface of the interface lens contacts the eye. The detector determines when the first sensing element contacts the second sensing element. A method for aligning the laser with the eye includes coupling the laser to the patient interface, sensing an electrical change indicating a position of the output surface with the interface lens, comparing the electrical change with a predetermined value to produce a correction, and re-positioning the laser with the correction.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: January 21, 2014
    Assignee: AMO Development, LLC
    Inventors: Michael Brownell, Ferenc Raksi
  • Patent number: 8292877
    Abstract: Systems and methods of incising a portion of a material include creating a sub-surface separation in a region of the material, and incising a periphery of the region with a pulsed laser beam to produce an edge of the portion. The edge includes a periodically varying shape to secure the portion to the material when the portion is reintegrated. The system includes a laser producing the pulsed laser beam, a scanner operable in response to a control signal, and a controller coupled to the scanner. The controller produces the control signal. In response to the control signal, the scanner creates a sub-surface separation in the region with the pulsed laser beam and incises the periphery of the region with the pulsed laser beam to produce the edge with the periodically varying shape.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: October 23, 2012
    Assignee: AMO Development, LLC.
    Inventors: Ferenc Raksi, Michael Brownell
  • Publication number: 20120150161
    Abstract: Systems and methods of incising a portion of a material include creating a sub-surface separation in a region of the material, and incising a periphery of the region with a pulsed laser beam to produce an edge of the portion. The edge includes a periodically varying shape to secure the portion to the material when the portion is reintegrated. The system includes a laser producing the pulsed laser beam, a scanner operable in response to a control signal, and a controller coupled to the scanner. The controller produces the control signal. In response to the control signal, the scanner creates a sub-surface separation in the region with the pulsed laser beam and incises the periphery of the region with the pulsed laser beam to produce the edge with the periodically varying shape.
    Type: Application
    Filed: February 20, 2012
    Publication date: June 14, 2012
    Applicant: AMO Development, LLC
    Inventors: Ferenc Raksi, Michael Brownell
  • Publication number: 20120083776
    Abstract: Systems, methods, and computer program products are provided for the administration of annular and other ablation profiles during refractive surgery treatments. Basis data framework techniques enable the implementation of both circular and annular ablation profiles resulting in increased ablation efficiency when treating certain vision conditions. In some instances, systems or treatments involve the use of symmetric and asymmetric ablations shapes such as double spots, triple spots, quadruple spots, multiple spots, arc shapes, elliptical shapes, and the like.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 5, 2012
    Applicant: AMO Development, LLC
    Inventors: Guang-ming Dai, Michael Brownell
  • Patent number: 8142423
    Abstract: Systems and methods of incising a portion of a material include creating a sub-surface separation in a region of the material, and incising a periphery of the region with a pulsed laser beam to produce an edge of the portion. The edge includes a periodically varying shape to secure the portion to the material when the portion is reintegrated. The system includes a laser producing the pulsed laser beam, a scanner operable in response to a control signal, and a controller coupled to the scanner. The controller produces the control signal. In response to the control signal, the scanner creates a sub-surface separation in the region with the pulsed laser beam and incises the periphery of the region with the pulsed laser beam to produce the edge with the periodically varying shape.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: March 27, 2012
    Assignee: AMO Development, LLC.
    Inventors: Ferenc Raksi, Michael Brownell
  • Publication number: 20120016349
    Abstract: Apparatus and methods are provided for interfacing a surgical laser with an eye using a patient interface device that minimizes aberrations through a combination of a contact lens surface positioning and a liquid medium between an anterior surface of the eye and the contact lens surface.
    Type: Application
    Filed: September 12, 2011
    Publication date: January 19, 2012
    Applicant: AMO Development, LLC.
    Inventor: Michael Brownell
  • Patent number: 8075552
    Abstract: A system and method for preparation of donor corneal tissue is disclosed. The system includes two surgical lasers. The first surgical laser is adapted to incise a recipient cornea to enable resection of recipient corneal tissue. The second surgical laser is adapted to incise a donor cornea to enable resection of donor corneal tissue. Both surgical lasers are adapted to make corneal incisions which are defined by incision parameters. Further, both surgical lasers are calibrated to make substantially precise corneal incisions when provided with identical incision parameters.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: December 13, 2011
    Assignee: AMO Development LLC.
    Inventors: Ronald M. Kurtz, Melvin A. Sarayba, Michael Brownell
  • Publication number: 20100130966
    Abstract: Systems, apparatus, and methods are disclosed for locating tissue layer transitions within a cornea, including focusing a laser to a laser spot with an energy below a photodisruption threshold of the cornea, varying a position of the focal spot of the laser between an anterior surface of the cornea and a posterior surface of the cornea, and determining one or more transitions of the tissue layers based on a change in harmonic light generated by the laser spot.
    Type: Application
    Filed: November 21, 2008
    Publication date: May 27, 2010
    Applicant: Advanced Medical Optics, Inc.
    Inventor: Michael Brownell
  • Publication number: 20090247997
    Abstract: System and method of photoaltering a region of an eye using a high resolution digital image of the eye. The system includes a laser assembly for outputting a pulsed laser beam, an imaging system for capturing a real-time high resolution digital image of the eye and displaying the digital image of the eye, a user interface receiving at least one laser parameter input, and a controller coupled to the laser assembly, imaging system, and user interface. The controller directs the laser assembly to output the pulsed laser beam to the region of the eye based on the laser parameter input.
    Type: Application
    Filed: April 1, 2009
    Publication date: October 1, 2009
    Applicant: AMO DEVELOPMENT, LLC
    Inventors: Keith Watanabe, Jesse Buck, Guy V. Holland, Michael Brownell, Valentina Doushkina
  • Publication number: 20090118718
    Abstract: Systems and methods of incising a portion of a material include creating a sub-surface separation in a region of the material, and incising a periphery of the region with a pulsed laser beam to produce an edge of the portion. The edge includes a periodically varying shape to secure the portion to the material when the portion is reintegrated. The system includes a laser producing the pulsed laser beam, a scanner operable in response to a control signal, and a controller coupled to the scanner. The controller produces the control signal. In response to the control signal, the scanner creates a sub-surface separation in the region with the pulsed laser beam and incises the periphery of the region with the pulsed laser beam to produce the edge with the periodically varying shape.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 7, 2009
    Applicant: IntraLase, Inc.
    Inventors: Ferenc Raksi, Michael Brownell
  • Publication number: 20090118717
    Abstract: A system for interfacing a surgical laser with an eye includes a first sensing element to couple to an output surface of the laser, an interface lens having second sensing element coupled to a first surface of the interface lens, and a detector coupled to the first sensing element. A second surface of the interface lens contacts the eye. The detector determines when the first sensing element contacts the second sensing element. A method for aligning the laser with the eye includes coupling the laser to the patient interface, sensing an electrical change indicating a position of the output surface with the interface lens, comparing the electrical change with a predetermined value to produce a correction, and re-positioning the laser with the correction.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 7, 2009
    Applicant: IntraLase, Inc.
    Inventors: Michael Brownell, Ferenc Raksi
  • Publication number: 20090118716
    Abstract: System and method of photoaltering a region of a material using a pulsed laser beam. The method includes randomly scanning the pulsed laser beam in the region, and creating a separation between a first layer of the material and a second layer of the material at the region. The system includes a laser producing a pulsed laser beam, a controller transmitting a signal, and a scanner coupled to the controller. The scanner randomly scans the pulsed laser beam in the region in response to the signal.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 7, 2009
    Applicant: IntraLase, Inc.
    Inventor: Michael Brownell