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).
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Patent number: 11852890Abstract: 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: GrantFiled: May 28, 2021Date of Patent: December 26, 2023Assignee: 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
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Patent number: 11852839Abstract: 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: GrantFiled: May 24, 2021Date of Patent: December 26, 2023Assignee: Avegant Corp.Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
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Patent number: 11480784Abstract: 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: GrantFiled: December 23, 2019Date of Patent: October 25, 2022Assignee: 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
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Patent number: 11259006Abstract: 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: GrantFiled: January 8, 2019Date of Patent: February 22, 2022Assignee: 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
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Publication number: 20210289193Abstract: 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: ApplicationFiled: May 28, 2021Publication date: September 16, 2021Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
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Publication number: 20210278685Abstract: 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: ApplicationFiled: May 24, 2021Publication date: September 9, 2021Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
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Patent number: 11042048Abstract: 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: GrantFiled: August 12, 2019Date of Patent: June 22, 2021Assignee: Avegant Corp.Inventors: Aaron Matthew Eash, Allan Thomas Evans, D. Scott Dewald, Andrew John Gross, Eamon Han O'Connor, Warren Cornelius Welch, III
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Patent number: 11025893Abstract: 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: GrantFiled: January 21, 2019Date of Patent: June 1, 2021Assignee: 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
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Patent number: 11016307Abstract: 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: GrantFiled: September 3, 2019Date of Patent: May 25, 2021Assignee: Avegant Corp.Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
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Publication number: 20210103157Abstract: 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: ApplicationFiled: December 15, 2020Publication date: April 8, 2021Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Warren Cornelius Welch, III
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Patent number: 10944904Abstract: 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: GrantFiled: August 20, 2018Date of Patent: March 9, 2021Assignee: Avegant Corp.Inventors: Allan Thomas Evans, D. Scott Dewald, Andrew John Gross
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Patent number: 10866428Abstract: 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: GrantFiled: January 21, 2019Date of Patent: December 15, 2020Assignee: Avegant Corp.Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Warren Cornelius Welch, III
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Patent number: 10809546Abstract: 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: GrantFiled: August 12, 2016Date of Patent: October 20, 2020Assignee: Avegant Corp.Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
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Publication number: 20200137377Abstract: 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: ApplicationFiled: December 23, 2019Publication date: April 30, 2020Inventors: Aaron Matthew Eash, Allan Thomas Evans, Andrew John Gross, D. Scott Dewald, Eamon Han O'Connor, Forrest Foust, Warren Cornelius Welch, III
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Publication number: 20200012118Abstract: 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: ApplicationFiled: September 3, 2019Publication date: January 9, 2020Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
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Patent number: 10516879Abstract: 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: GrantFiled: December 13, 2016Date of Patent: December 24, 2019Assignee: 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
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Publication number: 20190361271Abstract: 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: ApplicationFiled: August 12, 2019Publication date: November 28, 2019Inventors: Aaron Matthew Eash, Allan Thomas Evans, D. Scott Dewald, Andrew John Gross, Eamon Han O'Connor, Warren Cornelius Welch, III
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Patent number: 10409079Abstract: 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: GrantFiled: May 19, 2015Date of Patent: September 10, 2019Assignee: Avegant Corp.Inventors: D. Scott Dewald, Allan Thomas Evans, Chris Westra, Warren Cornelius Welch, III, Andrew Gross
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Patent number: 10401639Abstract: 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: GrantFiled: November 21, 2016Date of Patent: September 3, 2019Assignee: Avegant Corp.Inventors: Allan Thomas Evans, Andrew John Gross, D. Scott Dewald
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Patent number: 10379388Abstract: 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: GrantFiled: April 19, 2017Date of Patent: August 13, 2019Assignee: Avegant Corp.Inventors: Aaron Matthew Eash, Allan Thomas Evans, D. Scott Dewald, Andrew John Gross, Eamon Han O'Connor, Warren Cornelius Welch, III