Patents by Inventor Vance R. Morrison

Vance R. Morrison 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: 10802190
    Abstract: Systems, devices, and methods for making and using curved holographic optical elements (“HOEs”) are described. A hologram to apply a first optical power to playback light may be embedded in an internal volume of a curved lens, where the curved lens has a first curvature to apply a second optical power to the playback light and a second curvature opposite the first curvature to define the internal volume of the curved lens. The first optical power may be equal in magnitude and opposite in sign to the second optical power. The curved HOEs described herein are particularly well-suited for use when integrated with a curved eyeglass lens to form the transparent combiner of a virtual retina display.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: October 13, 2020
    Assignee: Covestro LLC
    Inventors: Stefan Alexander, Vance R. Morrison, Thomas Mahon
  • Patent number: 10459222
    Abstract: Systems, devices, and methods for laser projectors with variable luminance that are well-suited for use in a wearable heads-up display (“WHUD”) are described. Such laser projectors include a laser light source(s) and a scan mirror(s) to generate an image in the field of view of a user, and a liquid crystal element between the light source(s) and the scan mirror(s) to adjust the luminance of the image. The liquid crystal element is on an optical path between the laser light source(s) and the scan mirror and is communicatively coupled to a controller that modulates an opacity of the liquid crystal element. The opacity of the liquid crystal element determines the luminance of the image and may be altered in response to different factors, such as ambient light. Particular applications of the laser projector systems, devices, and methods in a wearable heads-up display are described.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: October 29, 2019
    Assignee: North Inc.
    Inventors: Stefan Alexander, Ken Wu, Vance R. Morrison
  • Patent number: 10459223
    Abstract: Systems, devices, and methods for laser projectors with variable luminance that are well-suited for use in a wearable heads-up display (“WHUD”) are described. Such laser projectors include a laser light source(s) and a scan mirror(s) to generate an image in the field of view of a user, and a liquid crystal element between the light source(s) and the scan mirror(s) to adjust the luminance of the image. The liquid crystal element is on an optical path between the laser light source(s) and the scan mirror and is communicatively coupled to a controller that modulates an opacity of the liquid crystal element. The opacity of the liquid crystal element determines the luminance of the image and may be altered in response to different factors, such as ambient light. Particular applications of the laser projector systems, devices, and methods in a wearable heads-up display are described.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: October 29, 2019
    Assignee: North Inc.
    Inventors: Stefan Alexander, Ken Wu, Vance R. Morrison
  • Patent number: 10459221
    Abstract: Systems, devices, and methods for laser projectors with variable luminance that are well-suited for use in a wearable heads-up display (“WHUD”) are described. Such laser projectors include a laser light source(s) and a scan mirror(s) to generate an image in the field of view of a user, and a liquid crystal element between the light source(s) and the scan mirror(s) to adjust the luminance of the image. The liquid crystal element is on an optical path between the laser light source(s) and the scan mirror and is communicatively coupled to a controller that modulates an opacity of the liquid crystal element. The opacity of the liquid crystal element determines the luminance of the image and may be altered in response to different factors, such as ambient light. Particular applications of the laser projector systems, devices, and methods in a wearable heads-up display are described.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: October 29, 2019
    Assignee: North Inc.
    Inventors: Stefan Alexander, Ken Wu, Vance R. Morrison
  • Patent number: 10365548
    Abstract: Systems, devices, and methods for focusing laser projectors are described. A laser projector includes N?1 laser diodes, each of which emits laser light having a divergence. Each laser diode is paired with a respective primary or collimation lens to at least reduce a divergence of the laser light that the laser diode produces. Downstream from the primary lens(es) in the optical path(s) of the laser light, a single dedicated secondary or convergence lens converges the laser light to a focus. By initiating the convergence of the laser light at the secondary or convergence lens as opposed to at the primary or collimation lens(es), numerous benefits that are particularly advantageous in laser projection-based wearable heads-up displays are realized.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: July 30, 2019
    Assignee: North Inc.
    Inventors: Lloyd Frederick Holland, Vance R. Morrison
  • Patent number: 10365550
    Abstract: Systems, devices, and methods for focusing laser projectors are described. A laser projector includes N?1 laser diodes, each of which emits laser light having a divergence. Each laser diode is paired with a respective primary or collimation lens to at least reduce a divergence of the laser light that the laser diode produces. Downstream from the primary lens(es) in the optical path(s) of the laser light, a single dedicated secondary or convergence lens converges the laser light to a focus. By initiating the convergence of the laser light at the secondary or convergence lens as opposed to at the primary or collimation lens(es), numerous benefits that are particularly advantageous in laser projection-based wearable heads-up displays are realized.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 30, 2019
    Assignee: North Inc.
    Inventors: Lloyd Frederick Holland, Vance R. Morrison
  • Patent number: 10365549
    Abstract: Systems, devices, and methods for focusing laser projectors are described. A laser projector includes N?1 laser diodes, each of which emits laser light having a divergence. Each laser diode is paired with a respective primary or collimation lens to at least reduce a divergence of the laser light that the laser diode produces. Downstream from the primary lens(es) in the optical path(s) of the laser light, a single dedicated secondary or convergence lens converges the laser light to a focus. By initiating the convergence of the laser light at the secondary or convergence lens as opposed to at the primary or collimation lens(es), numerous benefits that are particularly advantageous in laser projection-based wearable heads-up displays are realized.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 30, 2019
    Assignee: North Inc.
    Inventors: Lloyd Frederick Holland, Vance R. Morrison
  • Patent number: 10345596
    Abstract: Systems, devices, and methods for preventing image astigmatism in wearable heads-up displays (WHUD) with laser projectors are described. A WHUD includes a support structure carrying a laser projector and an eyeglass lens with a transparent combiner. The laser projector includes at least one laser diode, at least one anamorphic optical element, and at least one controllable mirror. The at least one laser diode generates a laser light that, without optical manipulation, would result in an astigmatic, unfocused image at the eye of the user. The at least one anamorphic optical element anamorphically shapes the spot of the laser light to compensate for an astigmatic effect of at least the transparent combiner. The at least one controllable mirror scans the light onto the transparent combiner and the transparent combiner redirects the light towards an eye of a user to create a focused, non-astigmatic image.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: July 9, 2019
    Assignee: North Inc.
    Inventor: Vance R. Morrison
  • Patent number: 10274736
    Abstract: Systems, devices, and methods for eyebox expansion by exit pupil replication in wearable heads-up displays (“WHUDs”) are described. A WHUD includes a scanning laser projector (“SLP”), a holographic combiner, and an optical splitter positioned in the optical path therebetween. The optical splitter receives light signals generated by the SLP and separates the light signals into N sub-ranges based on the point of incidence of each light signal at the optical splitter. The optical splitter redirects the light signals corresponding to respective ones of the N sub-ranges towards the holographic combiner effectively from respective ones of N spatially-separated virtual positions for the SLP. The holographic combiner converges the light signals to respective ones of N spatially-separated exit pupils at the eye of the user. In this way, multiple instances of the exit pupil are distributed over the area of the eye and the eyebox of the WHUD is expanded.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: April 30, 2019
    Assignee: North Inc.
    Inventors: Stefan Alexander, Matthew Bailey, Vance R. Morrison, Lloyd Frederick Holland, Joshua Moore
  • Patent number: 10215987
    Abstract: Systems, devices, and methods for preventing image astigmatism in wearable heads-up displays (WHUD) with laser projectors are described. A WHUD includes a support structure carrying a laser projector and an eyeglass lens with a transparent combiner. The laser projector includes at least one laser diode, at least one anamorphic optical element, and at least one controllable mirror. The at least one laser diode generates a laser light that, without optical manipulation, would result in an astigmatic, unfocused image at the eye of the user. The at least one anamorphic optical element anamorphically shapes the spot of the laser light to compensate for an astigmatic effect of at least the transparent combiner. The at least one controllable mirror scans the light onto the transparent combiner and the transparent combiner redirects the light towards an eye of a user to create a focused, non-astigmatic image.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: February 26, 2019
    Assignee: NORTH INC.
    Inventor: Vance R. Morrison
  • Publication number: 20190056596
    Abstract: A wearable heads-up display includes a support structure that in use is worn on a head of a user, a scanning laser projector carried by the support structure, and a holographic optical element carried by the support structure. The holographic optical element includes a set of holograms formed in one or more layers of holographic material. The set of holograms includes a red hologram that is exclusively responsive to red laser light incident thereon over a first range of angles of incidence, a green hologram that is exclusively responsive to blue laser light incident thereon over the first range of angles of incidence, and a blue hologram that is exclusively responsive to green laser light incident thereon over the first range of angles of incidence.
    Type: Application
    Filed: October 22, 2018
    Publication date: February 21, 2019
    Inventors: Matthew Bailey, Stefan Alexander, Vance R. Morrison, Thomas Mahon, Lloyd Frederick Holland, Jaehong Choi
  • Publication number: 20190056595
    Abstract: A holographic optical element includes a set of holograms formed in one or more layers of holographic material. The set of holograms includes a red hologram that is exclusively responsive to a first wavelength of red light incident thereon over a first range of angles of incidence, a green hologram that is exclusively responsive to a second wavelength of green light incident thereon over the first range of angles of incidence, and a blue hologram that is exclusively responsive to a third wavelength of blue light incident thereon over the first range of angles of incidence.
    Type: Application
    Filed: October 22, 2018
    Publication date: February 21, 2019
    Inventors: Matthew Bailey, Stefan Alexander, Vance R. Morrison, Thomas Mahon, Lloyd Frederick Holland, Jaehong Choi
  • Patent number: 10197805
    Abstract: Systems, devices, and methods for engineering the eyebox of a display using multiple heterogeneous exit pupils are described. The eyebox of a display includes at least two heterogeneous exit pupils that are different from one another in terms of size and/or shape. Heterogeneous exit pupils may overlap, one may encompass another, or they may be completely spatially-separated from one another. Such configurations enable specific eyebox and/or visual display configurations that can be advantageous in certain applications. An example in which a scanning laser-based wearable heads-up virtual retina display implements a holographic combiner that is engineered to provide multiple heterogeneous exit pupils is described.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: February 5, 2019
    Assignee: North Inc.
    Inventors: Matthew Bailey, Stefan Alexander, Vance R. Morrison, Thomas Mahon, Lloyd Frederick Holland, Jaehong Choi
  • Patent number: 10191283
    Abstract: Systems, devices, and methods for eyebox expansion by exit pupil replication in wearable heads-up displays (“WHUDs”) are described. A WHUD includes a scanning laser projector (“SLP”), a holographic combiner, and an exit pupil selector positioned in the optical path therebetween. The exit pupil selector is controllably switchable into and between N different configurations. In each of the N configurations, the exit pupil selector receives a light signal from the SLP and redirects the light signal towards the holographic combiner effectively from a respective one of N virtual positions for the SLP. The holographic combiner converges the light signal to a particular one of N exit pupils at the eye of the user based on the particular virtual position from which the light signal is made to effectively originate. In this way, multiple instances of the exit pupil are distributed over the eye and the eyebox of the WHUD is expanded.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: January 29, 2019
    Assignee: NORTH INC.
    Inventors: Stefan Alexander, Matthew Bailey, Vance R. Morrison, Lloyd Frederick Holland
  • Patent number: 10175488
    Abstract: Systems, devices, and methods for spatial multiplexing in holographic optical elements (“HOEs”) are described. A spatially-multiplexed HOE includes multiple spatially-separated holographic regions and each spatially-separated region applies a respective optical function to light that is incident thereon. An exemplary application as a spatially-multiplexed holographic combiner (“SMHC”) in a scanning laser-based wearable heads-up display (“WHUD”) is described. In this exemplary application, a scanning laser projector directs multiple light signals over the area of the SMHC and the SMHC converges the light signals towards multiple spatially-separated exit pupils at or proximate the eye of the user. The particular exit pupil at the eye of the user towards which any particular light signal is converged by the SMHC depends on the particular region of the SMHC upon which the light signal is incident.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: January 8, 2019
    Assignee: NORTH INC.
    Inventors: Matthew Bailey, Stefan Alexander, Vance R. Morrison, Thomas Mahon, Lloyd Frederick Holland, Jaehong Choi
  • Publication number: 20180372935
    Abstract: Systems, devices, and methods for making and using curved holographic optical elements (“HOEs”) are described. A hologram to apply a first optical power to playback light may be embedded in an internal volume of a curved lens, where the curved lens has a first curvature to apply a second optical power to the playback light and a second curvature opposite the first curvature to define the internal volume of the curved lens. The first optical power may be equal in magnitude and opposite in sign to the second optical power. The curved HOEs described herein are particularly well-suited for use when integrated with a curved eyeglass lens to form the transparent combiner of a virtual retina display.
    Type: Application
    Filed: July 26, 2018
    Publication date: December 27, 2018
    Inventors: Stefan Alexander, Vance R. Morrison, Thomas Mahon
  • Patent number: 10133075
    Abstract: Systems, devices, and methods for combined angle- and wavelength multiplexing in holographic optical elements (“HOE”) are described. An angle- and wavelength-multiplexed HOE includes multiple angle-multiplexed sets of wavelength-multiplexed holograms. Each set of wavelength-multiplexed holograms includes at least two holograms that are each responsive to a different wavelength of light. Each angle-multiplexed set of wavelength-multiplexed holograms includes a respective set of wavelength-multiplexed holograms that are all responsive to light that is incident thereon with and angle of incidence that is within a particular range. An example application is described in which an angle- and wavelength-multiplexed HOE is used as a holographic combiner in a wearable heads-up display, where angle-multiplexing provides multiple spatially-separated exit pupils in the eyebox of the display and wavelength-multiplexing provides multiple colors to each respective exit pupil.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: November 20, 2018
    Assignee: THALMIC LABS INC.
    Inventors: Matthew Bailey, Stefan Alexander, Vance R. Morrison, Thomas Mahon, Lloyd Frederick Holland, Jaehong Choi
  • Publication number: 20180299679
    Abstract: Systems, devices, and methods for eyebox expansion by exit pupil replication in scanning laser-based wearable heads-up displays (“WHUDs”) are described. The WHUDs described herein each include a scanning laser projector (“SLP”), a holographic combiner, and an optical replicator positioned in the optical path therebetween. For each light signal generated by the SLP, the optical replicator receives the light signal and redirects each one of N>1 instances of the light signal towards the holographic combiner effectively from a respective one of N spatially-separated virtual positions for the SLP. The holographic combiner converges each one of the N instances of the light signal to a respective one of N spatially-separated exit pupils at the eye of the user. In this way, multiple instances of the exit pupil are distributed over the area of the eye and the eyebox of the WHUD is expanded.
    Type: Application
    Filed: June 26, 2018
    Publication date: October 18, 2018
    Inventors: Stefan Alexander, Matthew Bailey, Vance R. Morrison, Lloyd Frederick Holland
  • Publication number: 20180299680
    Abstract: Systems, devices, and methods for eyebox expansion by exit pupil replication in scanning laser-based wearable heads-up displays (“WHUDs”) are described. The WHUDs described herein each include a scanning laser projector (“SLP”), a holographic combiner, and an optical replicator positioned in the optical path therebetween. For each light signal generated by the SLP, the optical replicator receives the light signal and redirects each one of N>1 instances of the light signal towards the holographic combiner effectively from a respective one of N spatially-separated virtual positions for the SLP. The holographic combiner converges each one of the N instances of the light signal to a respective one of N spatially-separated exit pupils at the eye of the user. In this way, multiple instances of the exit pupil are distributed over the area of the eye and the eyebox of the WHUD is expanded.
    Type: Application
    Filed: June 26, 2018
    Publication date: October 18, 2018
    Inventors: Stefan Alexander, Matthew Bailey, Vance R. Morrison, Lloyd Frederick Holland
  • Publication number: 20180252926
    Abstract: Systems, devices, and methods for eyebox expansion by exit pupil replication in wearable heads-up displays (“WHUDs”) are described. A WHUD includes a scanning laser projector (“SLP”), a holographic combiner, and an optical splitter positioned in the optical path therebetween. The optical splitter receives light signals generated by the SLP and separates the light signals into N sub-ranges based on the point of incidence of each light signal at the optical splitter. The optical splitter redirects the light signals corresponding to respective ones of the N sub-ranges towards the holographic combiner effectively from respective ones of N spatially-separated virtual positions for the SLP. The holographic combiner converges the light signals to respective ones of N spatially-separated exit pupils at the eye of the user. In this way, multiple instances of the exit pupil are distributed over the area of the eye and the eyebox of the WHUD is expanded.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Inventors: Stefan Alexander, Matthew Bailey, Vance R. Morrison, Lloyd Frederick Holland, Joshua Moore