Patents by Inventor Allan Thomas Evans

Allan Thomas Evans 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).

  • Patent number: 11852890
    Abstract: A near-eye display system comprising an image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: December 26, 2023
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
  • Patent number: 11852839
    Abstract: A digital light path length modulator includes an optical path length extender (OPLE) and a polarization modulator. The OPLE has two light paths with different path lengths, such that the light having a first polarization is directed through a first light path, and the light having a second polarization is directed through a second light path.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: December 26, 2023
    Assignee: Avegant Corp.
    Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
  • Patent number: 11480784
    Abstract: A near-eye display system comprising a image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: October 25, 2022
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
  • Patent number: 11259006
    Abstract: A method of providing correlated depth data in video data, the method comprising identifying depth information encoded within pixel information of a frame of video data, extracting the depth information, and utilizing the depth information for displaying the video data to a user.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: February 22, 2022
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Edward Chia Ning Tang, Forrest Foust, Joseph Roger Battelle, Kevin William King, Mark P. Palaima, Warren Cornelius Welch, III
  • Publication number: 20210289193
    Abstract: A near-eye display system comprising an image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 16, 2021
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
  • Publication number: 20210278685
    Abstract: A digital light path length modulator comprises an optical path length extender (OPLE) and a polarization modulator. The OPLE comprises two light paths having different path lengths, such that light having a first polarization is directed through a first light path, and the light having a second polarization is directed through a second light path.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
  • Patent number: 11042048
    Abstract: A system to adjust light path length comprising a digital light path length modulator, the digital light path length modulator comprising a polarization modulator to receive polarized light and to modulate a polarization of some or all of the polarized light. The system further comprising an optical path length extender (OPLE) having an entry surface and an exit surface, to direct the light entering the OPLE with a first polarization through the entry surface and along a first light path through the OPLE to exit through the exit surface, and to direct the light entering the OPLE with a second polarization through the entry surface and along a second light path through the OPLE to exit through the exit surface, the second light path through the OPLE having a light path length two or more times longer than the first light path length through the OPLE.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: June 22, 2021
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, D. Scott Dewald, Andrew John Gross, Eamon Han O'Connor, Warren Cornelius Welch, III
  • Patent number: 11025893
    Abstract: A near-eye display system comprising an image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: June 1, 2021
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
  • Patent number: 11016307
    Abstract: A digital light path length modulator includes an optical path length extender (OPLE) and a polarization modulator. The OPLE has two light paths with different path lengths, such that the light having a first polarization is directed through a first light path, and the light having a second polarization is directed through a second light path.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: May 25, 2021
    Assignee: Avegant Corp.
    Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
  • Publication number: 20210103157
    Abstract: A system comprising an optical path length extender (OPLE) having two light paths having different path lengths, such that light entering the OPLE with a first polarization is directed through a first light path, and light entering the OPLE with a second polarization is directed through a second light path through the OPLE. The OPLE includes a first polarization sensitive reflective element at a first angle to the light entering the OPLE and a second angled polarization sensitive reflective element at a second angle to the light entering the OPLE, the second angled polarization sensitive reflective element intersecting the first polarization sensitive reflective element. The system further includes a mirror with an optical power.
    Type: Application
    Filed: December 15, 2020
    Publication date: April 8, 2021
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Warren Cornelius Welch, III
  • Patent number: 10944904
    Abstract: An image capture system comprising an optical path length extender (OPLE) to direct the light having a first polarization through a first light path through the OPLE, and to direct the light having a second polarization through a second light path through the OPLE, the first and second light paths having different light path lengths. The image capture system further comprising an image sensor to capture a plurality of image portions at a plurality of focal distances.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: March 9, 2021
    Assignee: Avegant Corp.
    Inventors: Allan Thomas Evans, D. Scott Dewald, Andrew John Gross
  • Patent number: 10866428
    Abstract: A system to adjust light path length utilizing a digital light path length modulator is described. The digital light path length modulator includes a polarization modulator to receive polarized light and to modulate a polarization of some or all of the polarized light, and an optical path length extender (OPLE) to direct the light entering the OPLE with a first polarization along a first light path through the OPLE, and to direct the light entering the OPLE with a second polarization along a second light path through the OPLE, the second light path through the OPLE having a light path length longer than the first light path length through the OPLE.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: December 15, 2020
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Warren Cornelius Welch, III
  • Patent number: 10809546
    Abstract: A system to adjust light path length utilizing a digital light path length modulator. The digital light path length modulator includes an optical path length extender (OPLE) with a plurality of polarization sensitive reflective elements and a polarization modulator. The OPLE has two light paths having different path lengths, so a light having a first polarization is directed through a first light path, and the light having a second polarization is directed through a second light path.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: October 20, 2020
    Assignee: Avegant Corp.
    Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
  • Publication number: 20200137377
    Abstract: A near-eye display system comprising a image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
  • Publication number: 20200012118
    Abstract: A digital light path length modulator comprises an optical path length extender (OPLE) and a polarization modulator. The OPLE comprises two light paths having different path lengths, such that light having a first polarization is directed through a first light path, and the light having a second polarization is directed through a second light path.
    Type: Application
    Filed: September 3, 2019
    Publication date: January 9, 2020
    Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
  • Patent number: 10516879
    Abstract: A near-eye display system comprising a image source, a modulation stack, and an imaging assembly. The modulation stack, in one embodiment, comprises one or more digital light path length modulators.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: December 24, 2019
    Assignee: AVEGANT CORP.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
  • Publication number: 20190361271
    Abstract: A system to adjust light path length comprising a digital light path length modulator, the digital light path length modulator comprising a polarization modulator to receive polarized light and to modulate a polarization of some or all of the polarized light. The system further comprising an optical path length extender (OPLE) having an entry surface and an exit surface, to direct the light entering the OPLE with a first polarization through the entry surface and along a first light path through the OPLE to exit through the exit surface, and to direct the light entering the OPLE with a second polarization through the entry surface and along a second light path through the OPLE to exit through the exit surface, the second light path through the OPLE having a light path length two or more times longer than the first light path length through the OPLE.
    Type: Application
    Filed: August 12, 2019
    Publication date: November 28, 2019
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, D. Scott Dewald, Andrew John Gross, Eamon Han O'Connor, Warren Cornelius Welch, III
  • Patent number: 10409079
    Abstract: An apparatus (110), system (100), and method (900) for displaying an image (880). Instead of using an expensive configuration of prisms (310) such as TIR prisms (311) or RTIR prisms (312) to direct light (800) to and from a DMD (324), a plate (340) with transmissive (374), reflective (372), and/or polarization (373) characteristics is used. The plate (340) can be implemented in a wide variety of different embodiments using a wide variety of different components and configurations.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: September 10, 2019
    Assignee: Avegant Corp.
    Inventors: D. Scott Dewald, Allan Thomas Evans, Chris Westra, Warren Cornelius Welch, III, Andrew Gross
  • Patent number: 10401639
    Abstract: A system to adjust light path length using a digital light path length modulator. The digital light path modulator includes an optical path length extender (OPLE) and a polarization modulator. The OPLE has two light paths having different path lengths, so light with a first polarization is directed through a first light path, and the light with a second polarization is directed through a second light path through the OPLE.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: September 3, 2019
    Assignee: Avegant Corp.
    Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
  • Patent number: 10379388
    Abstract: A system to adjust light path length comprising a digital light path length modulator, the digital light path length modulator comprising a polarization modulator to receive polarized light and to modulate a polarization of some or all of the polarized light. The system further comprising an optical path length extender (OPLE) having an entry surface and an exit surface, to direct the light entering the OPLE with a first polarization through the entry surface and along a first light path through the OPLE to exit through the exit surface, and to direct the light entering the OPLE with a second polarization through the entry surface and along a second light path through the OPLE to exit through the exit surface, the second light path through the OPLE having a light path length two or more times longer than the first light path length through the OPLE.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: August 13, 2019
    Assignee: Avegant Corp.
    Inventors: Aaron Matthew Eash, Allan Thomas Evans, D. Scott Dewald, Andrew John Gross, Eamon Han O'Connor, Warren Cornelius Welch, III