Patents by Inventor Philip Greenhalgh

Philip Greenhalgh 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: 20210157152
    Abstract: An optical device includes a range of angularly selective reflectors are contained within an optical waveguide substrate and substantially optimized according to their reflector order within the sequence of reflectors. This configuration of reflectors ensures that the required angular information is passed through to the correct reflector within the sequence. The angular response in addition reduces or eliminates formation of secondary images carried to successive reflectors, resulting in undesired artefacts.
    Type: Application
    Filed: February 4, 2021
    Publication date: May 27, 2021
    Applicant: RPX CORPORATION
    Inventors: James Leighton, Brennon Pennell, Adrian Stannard, Louahab Noui, Nan Ma, Iain Wellington, Philip Greenhalgh, Lawrence Hoar, Iain Wright
  • Patent number: 10962786
    Abstract: An optical device includes a range of angularly selective reflectors are contained within an optical waveguide substrate and substantially optimized according to their reflector order within the sequence of reflectors. This configuration of reflectors ensures that the required angular information is passed through to the correct reflector within the sequence. The angular response in addition reduces or eliminates formation of secondary images carried to successive reflectors, resulting in undesired artefacts.
    Type: Grant
    Filed: October 19, 2019
    Date of Patent: March 30, 2021
    Assignee: RPX CORPORATION
    Inventors: James Leighton, Brennon Pennell, Adrian Stannard, Louahab Noui, Nan Ma, Iain Wellington, Philip Greenhalgh, Lawrence Hoar, Iain Wright
  • Publication number: 20200049998
    Abstract: An optical device includes a range of angularly selective reflectors are contained within an optical waveguide substrate and substantially optimized according to their reflector order within the sequence of reflectors. This configuration of reflectors ensures that the required angular information is passed through to the correct reflector within the sequence. The angular response in addition reduces or eliminates formation of secondary images carried to successive reflectors, resulting in undesired artefacts.
    Type: Application
    Filed: October 19, 2019
    Publication date: February 13, 2020
    Applicant: DAQRI, LLC
    Inventors: James Leighton, Brennon Pennell, Adrian Stannard, Louahab Noui, Nan Ma, Iain Wellington, Philip Greenhalgh, Lawrence Hoar, Iain Wright
  • Patent number: 10488666
    Abstract: An optical device includes a range of angularly selective reflectors are contained within an optical waveguide substrate and substantially optimized according to their reflector order within the sequence of reflectors. This configuration of reflectors ensures that the required angular information is passed through to the correct reflector within the sequence. The angular response in addition reduces or eliminates formation of secondary images carried to successive reflectors, resulting in undesired artefacts.
    Type: Grant
    Filed: February 10, 2018
    Date of Patent: November 26, 2019
    Assignee: Daqri, Llc
    Inventors: James Leighton, Brennon Pennell, Adrian Stannard, Louahab Noui, Nan Ma, Iain Wellington, Philip Greenhalgh, Lawrence Hoar, Iain Wright
  • Publication number: 20190250405
    Abstract: An optical device includes a range of angularly selective reflectors are contained within an optical waveguide substrate and substantially optimized according to their reflector order within the sequence of reflectors. This configuration of reflectors ensures that the required angular information is passed through to the correct reflector within the sequence. The angular response in addition reduces or eliminates formation of secondary images carried to successive reflectors, resulting in undesired artefacts.
    Type: Application
    Filed: February 10, 2018
    Publication date: August 15, 2019
    Applicant: Daqri, Llc
    Inventors: James Leighton, Brennon Pennell, Adrian Stannard, Louahab Noui, Nan Ma, Iain Wellington, Philip Greenhalgh, Lawrence Hoar, Iain Wright
  • Patent number: 10007115
    Abstract: Fixed position optical devices for displaying augmented reality images are provided herein. In one embodiment an optical device includes a AIIE having a waveguide that reflects a computer generated image along a central viewing axis, the computer generated image being received from an image generator optically coupled to the waveguide, and a fixed lens assembly for coupling a background image with the computer generated image to create the augmented reality display, the fixed lens assembly including a proximal lens disposed on one side of the waveguide, the proximal lens being fixedly spaced apart from the waveguide at a first distance, and a distal lens disposed on an opposing side of the AIIE from the one side, the distal lens being fixedly spaced apart from the waveguide at a second distance.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: June 26, 2018
    Assignee: DAQRI, LLC
    Inventors: Philip Greenhalgh, David Crosby, David Hayes
  • Publication number: 20170045742
    Abstract: Fixed position optical devices for displaying augmented reality images are provided herein. In one embodiment an optical device includes a AIIE having a waveguide that reflects a computer generated image along a central viewing axis, the computer generated image being received from an image generator optically coupled to the waveguide, and a fixed lens assembly for coupling a background image with the computer generated image to create the augmented reality display, the fixed lens assembly including a proximal lens disposed on one side of the waveguide, the proximal lens being fixedly spaced apart from the waveguide at a first distance, and a distal lens disposed on an opposing side of the AIIE from the one side, the distal lens being fixedly spaced apart from the waveguide at a second distance.
    Type: Application
    Filed: August 12, 2015
    Publication date: February 16, 2017
    Inventors: PHILIP GREENHALGH, DAVID CROSBY, DAVID HAYES
  • Patent number: 8988463
    Abstract: A method for overlaying first and second images in a common focal plane of a viewer comprises forming the first image and guiding the first and second images along an axis to a pupil of the viewer. The method further comprises adjustably diverging the first and second images at an adaptive diverging optic to bring the first image into focus at the common focal plane, and, adjustably converging the second image at an adaptive converging optic to bring the second image into focus at the common focal plane.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: March 24, 2015
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Kathryn Stone Perez, Alex Aben-Athar Kipman, Andrew Fuller, Philip Greenhalgh, David Hayes, John Tardif
  • Publication number: 20120147038
    Abstract: A method for overlaying first and second images in a common focal plane of a viewer comprises forming the first image and guiding the first and second images along an axis to a pupil of the viewer. The method further comprises adjustably diverging the first and second images at an adaptive diverging optic to bring the first image into focus at the common focal plane, and, adjustably converging the second image at an adaptive converging optic to bring the second image into focus at the common focal plane.
    Type: Application
    Filed: December 8, 2010
    Publication date: June 14, 2012
    Applicant: MICROSOFT CORPORATION
    Inventors: Kathryn Stone Perez, Alex Aben-Athar Kipman, Andrew Fuller, Philip Greenhalgh, David Hayes, John Tardif