Patents by Inventor James Montgomery

James Montgomery 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: 20200183153
    Abstract: A head-mounted display (HMD) system includes an optical arrangement; a first image panel, wherein the optical arrangement directs image light from the first image panel along a first optical pathway; a second image panel, wherein the optical arrangement directs image light from the second image panel along a second optical pathway different from the first optical pathway; and a third image panel and a fourth image panel, wherein the third and fourth image panels are spaced apart from each other and the optical arrangement directs light from the third image panel and the fourth image panel along different optical pathways. The optical arrangement is configured such that light from the first image panel and the third image panel are emitted from the HMD system in a combined fashion in a first eye direction, and light from the second image panel and the fourth image panel are emitted from the HMD system in a combined fashion in a second eye direction different from the first eye direction.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 11, 2020
    Inventors: Ka Ho Tam, David James Montgomery, Scott Wells
  • Publication number: 20200161585
    Abstract: A light-emitting device for use in a display device has enhanced directional light emission, and enhanced on-axis light emission in particular. A light-emitting device includes a layer structure that includes from a non-emitting side: a first electrode layer; a first charge transport layer; an emissive layer; a second charge transport layer; a second electrode layer; an optically transparent layer; and a partially transmitting reflector layer. The light-emitting device comprises a plurality of regions and each region emits light of a different wavelength, such as for example red, green, and blue light-emitting regions. The optically transparent layer is present in at least one of the plurality of regions. The optically transparent layer may be present in more than one of the plurality of regions, and a thickness of the optically transparent layer may differ in different regions to optimize light emission at different wavelengths.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 21, 2020
    Inventors: James Andrew Robert Palles-Dimmock, Tim Michael Smeeton, David James Montgomery, Nathan James Smith
  • Patent number: 10600980
    Abstract: A light-emitting device includes an emissive layer that emits light by recombination of first charges and second charges, a first electrode from which the first charges are supplied, a second electrode located on an opposite side of the emissive layer relative to the first electrode from which the second charges are supplied, and a charge transporting layer that is located between the emissive layer and the first electrode that injects the first charges from the first electrode into the emissive layer. The charge transporting layer includes a nanoparticle layer that provides a roughened electrode interface between the first electrode and the charge transporting layer and the emissive layer includes a plurality of quantum dots in electrical contact with the first electrode and the second electrode.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 24, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Edward Andrew Boardman, David James Montgomery, Tim Michael Smeeton, James Andrew Robert Palles-Dimmock
  • Publication number: 20200081254
    Abstract: An optical system enables high image quality Head Mounted Displays to be made more compact and/or of reduced weight. The optical system includes at least two or more image panels per eye, two or more reflective surfaces per image panel, and a refractive eyepiece element. Light from each image panel is reflected by a distinct set of optical surfaces before reaching the eye, forming at least two overlapping virtual images per eye. The invention may allow the apparatus to have a compact form factor with weight distribution close to the user's face without compromising on image quality and resolution.
    Type: Application
    Filed: December 14, 2017
    Publication date: March 12, 2020
    Inventors: Ka Ho TAM, David James MONTGOMERY
  • Patent number: 10558038
    Abstract: A head-mounted display (HMD) system includes an optical arrangement; at least one moveable image panel, wherein the optical arrangement directs image light from the moveable image panel along a first optical pathway; a fixed image panel, wherein a portion of image light emitted from the fixed image panel is combined with image light of the at least one moveable image panel by the optical arrangement; and an adjustment mechanism that is configured to adjust an interpupillary distance (IPD) of the HMD system by moving the optical arrangement and the moveable image panel relative to the fixed image panel between a first position and a second position corresponding to different IPDs. The adjustment to the IPD maintains the first optical pathway.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: February 11, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ka Ho Tam, David James Montgomery, Scott Wells
  • Patent number: 10527863
    Abstract: A head-mounted display (HMD) system includes an optical arrangement; a first image panel, wherein the optical arrangement directs image light from the first image panel along a first optical pathway; a second image panel, wherein the optical arrangement directs image light from the second image panel along a second optical pathway different from the first optical pathway; and a central image panel located between the first image panel and the second image panel, the central image panel including a first portion and a second portion. The optical arrangement directs light from the first portion and the second portion of the central image panel along different optical pathways.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 7, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ka Ho Tam, David James Montgomery, Scott Wells
  • Patent number: 10522787
    Abstract: A light-emitting device maximizes optical efficiency when the emissive layer is high refractive index material. Said device includes an emissive layer; a first electrode and a second electrode from which charges are generated; a first charge transport layer that injects charges from the first electrode into the emissive layer; and a second charge transport layer that injects charges from the second electrode into the emissive layer. A Fresnel reflection value at boundaries between the emissive layer and at least one of the first and second charge transport layers is from 5% through 30%, and at least one of the charge transport layers satisfies a half wavelength condition of having a thickness that is equal to within twenty percent of ½ of one wavelength of an integer multiple of ½ of one wavelength in the charge transport layer material within a bandwidth of emission of the emissive layer.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: December 31, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: David James Montgomery, Edward Andrew Boardman, James Andrew Robert Palles-Dimmock, Tim Michael Smeeton
  • Patent number: 10451936
    Abstract: A passive matrix display has corrugated electrode edges to reduce zone visibility within a display system. A passive matrix display includes a first substrate and a second substrate; a liquid crystal layer positioned between the first and second substrates; a patterned electrode layer formed on the first substrate comprising a plurality of individual electrodes, wherein adjacent individual electrodes are separated by an electrode gap; and a second electrode layer formed on the second substrate. At least a portion of opposing edges of adjacent individual electrodes at the electrode gap include corrugations. The elements of the corrugations may be any suitable shapes and/or sizes as may be suitable for any particular application. The corrugations may be uniformly shaped or varying, symmetric or asymmetric about a horizontal axis, and/or may have a regular or irregular pattern. Another aspect is a display system including the enhanced passive matrix display that reduces zone visibility.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: October 22, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: David James Montgomery, Hywel Hopkin, Jiyun Yu
  • Patent number: 10451882
    Abstract: A head-mounted display (HMD) system includes an optical arrangement, a first image panel, a second image panel, and a central image panel located between the first and second image panels. The optical arrangement is reconfigurable between a first position and a second position that maintains first and second optical pathways of the first and second image panels, and the HMD system has a different form factor when the optical arrangement is in the second position as compared to the first position. The optical arrangement includes at least one segmented optical component, wherein segments of the segmented optical component are moveable relative to each other to reconfigure the optical arrangement between the first position and the second position. The segmented optical component may include one more lens assemblies, each with multiple lens segments that are rotatable relative to each other about a hinge structure.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: October 22, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ka Ho Tam, David James Montgomery, Scott Wells
  • Publication number: 20190317364
    Abstract: A backlight assembly includes a light source, a light guide optically coupled to the light source that receives light from the light source, a substrate including an electrode layer and a hydrophobic surface located on the electrode layer, wherein the hydrophobic surface of the substrate is spaced apart from a surface of the light guide to define a cell gap, and a plurality of conductive liquid beads located within the cell gap. Liquid beads that are subject to an actuation voltage applied to the electrode layer are in an actuated state, and liquid beads that are not subject to an actuation voltage applied to the electrode layer are in a non-actuated state.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 17, 2019
    Inventors: David James Montgomery, Takeshi Ishida
  • Publication number: 20190317346
    Abstract: A passive matrix display has corrugated electrode edges to reduce zone visibility within a display system. A passive matrix display includes a first substrate and a second substrate; a liquid crystal layer positioned between the first and second substrates; a patterned electrode layer formed on the first substrate comprising a plurality of individual electrodes, wherein adjacent individual electrodes are separated by an electrode gap; and a second electrode layer formed on the second substrate. At least a portion of opposing edges of adjacent individual electrodes at the electrode gap include corrugations. The elements of the corrugations may be any suitable shapes and/or sizes as may be suitable for any particular application. The corrugations may be uniformly shaped or varying, symmetric or asymmetric about a horizontal axis, and/or may have a regular or irregular pattern. Another aspect is a display system including the enhanced passive matrix display that reduces zone visibility.
    Type: Application
    Filed: April 12, 2018
    Publication date: October 17, 2019
    Inventors: David James Montgomery, Hywel Hopkin, Jiyun Yu
  • Publication number: 20190285879
    Abstract: A head-mounted display (HMD) system includes an optical arrangement, a first image panel, a second image panel, and a central image panel located between the first and second image panels. The optical arrangement is reconfigurable between a first position and a second position that maintains first and second optical pathways of the first and second image panels, and the HMD system has a different form factor when the optical arrangement is in the second position as compared to the first position. The optical arrangement includes at least one segmented optical component, wherein segments of the segmented optical component are moveable relative to each other to reconfigure the optical arrangement between the first position and the second position. The segmented optical component may include one more lens assemblies, each with multiple lens segments that are rotatable relative to each other about a hinge structure.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 19, 2019
    Inventors: Ka Ho Tam, David James Montgomery, Scott Wells
  • Publication number: 20190285905
    Abstract: A head-mounted display (HMD) system includes an optical arrangement; a first image panel, wherein the optical arrangement directs image light from the first image panel along a first optical pathway; a second image panel, wherein the optical arrangement directs image light from the second image panel along a second optical pathway different from the first optical pathway; and a central image panel located between the first image panel and the second image panel, the central image panel including a first portion and a second portion. The optical arrangement directs light from the first portion and the second portion of the central image panel along different optical pathways.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 19, 2019
    Inventors: Ka Ho Tam, David James Montgomery, Scott Wells
  • Publication number: 20190285880
    Abstract: A head-mounted display (HMD) system includes an optical arrangement; at least one moveable image panel, wherein the optical arrangement directs image light from the moveable image panel along a first optical pathway; a fixed image panel, wherein a portion of image light emitted from the fixed image panel is combined with image light of the at least one moveable image panel by the optical arrangement; and an adjustment mechanism that is configured to adjust an interpupillary distance (IPD) of the HMD system by moving the optical arrangement and the moveable image panel relative to the fixed image panel between a first position and a second position corresponding to different IPDs. The adjustment to the IPD maintains the first optical pathway.
    Type: Application
    Filed: March 16, 2018
    Publication date: September 19, 2019
    Inventors: Ka Ho Tam, David James Montgomery, Scott Wells
  • Publication number: 20190196194
    Abstract: A head-mounted display (1) includes: a liquid crystal display unit (2) including a display surface (7) facing forward, the liquid crystal display unit (2) configured to display an image on the display surface (7); an eyepiece lens (13) disposed at a position lower than the liquid crystal display unit (2); and a mirror unit (4) configured to reflect light based on the image displayed on the display surface (7) and guide the light thus reflected to the eyepiece lens (13).
    Type: Application
    Filed: November 15, 2018
    Publication date: June 27, 2019
    Inventors: DAVID JAMES MONTGOMERY, KA HO TAM, SCOTT WELLS, NARU USUKURA, TOMOHIRO KIMURA
  • Patent number: 10328230
    Abstract: A vaporizer for delivery of a volatile medium to a gas flow, the vaporizer comprising: a gas delivery unit (3) which receives a flow of gas and provides a flow of gas containing a metered amount of a vaporized medium; a reservoir unit (5) which contains a volatile medium and maintains a supply of the vaporized medium, wherein the reservoir unit is selectively fluidly connected to the gas delivery unit; a gas sensing unit (7) for sensing a flow rate and/or composition of the gas flow; a vaporized medium sensing unit (9) for sensing a flow rate of the vaporized medium; a manifold (10) which includes flow paths for the vaporized medium and fluidly connects the reservoir unit and the vaporized medium sensing unit; and a control unit (11) for controlling a flow rate of the gas flow and an amount of the vaporized medium which is metered into the gas flow.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: June 25, 2019
    Assignee: Penlon Limited
    Inventors: Cliff Kersey, James Montgomery, Iain Revell, David Martyn White, Brian Jones
  • Patent number: 10281640
    Abstract: An illumination system comprises a lightguide (12) having a plurality of light extraction features (LEFs); and a plurality of independently controllable light sources (11a, 11b, 11c). The LEFs have a preferred direction, with light that is incident on an LEF along the preferred direction of the LEF being extracted from the lightguide generally parallel to a reference plane, and light that is incident on an LEF not along the preferred direction of the LEF being extracted from the lightguide at an extraction angle to the reference plane, the extraction angle being related by a response function to an incidence angle between the light propagation direction and the preferred direction of LEF. The shape of the LEFs varies with distance from a reference point or respective reference point so that the response function becomes larger with increasing distance of the LEFs from the reference point.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: May 7, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: David James Montgomery, Peter John Roberts, Paul Antony Gass
  • Patent number: 10239590
    Abstract: Floats having a buoyant portion and a chamber portion hold liquid within their chambers above the interface of the surrounding body of liquid and gas which creates a downward force which stabilizes the float. If the liquid is water, the float holds water in the inner chamber which is disposed above the waterline of the body of water in which the float is suspended. The elevated water exerts a downward force that acts against rocking, swaying, and other destabilizing forces.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 26, 2019
    Inventor: James Montgomery
  • Publication number: 20190085655
    Abstract: Cement slurry injected or delivered into a wellbore during cementing operations can be positively placed with a positive placement tool. The tool can be located along to a casing string and have a mandrel with a tubular centralizer sleeve rotatably fit thereabout, the centralizer sleeve having one or more radial guides extending longitudinally thereon. Reciprocal stroking of the casing string causes a helical drive arrangement, acting between the mandrel and the centralizer sleeve, to drive the centralizer sleeve longitudinally along a length of the mandrel while concurrently rotating the centralizer sleeve thereabout. The rotational movement of the centralizer sleeve provides positive impetus to force the injected cement slurry fully about the casing string.
    Type: Application
    Filed: November 15, 2018
    Publication date: March 21, 2019
    Inventors: Randy GOSSELIN, Trevor James MONTGOMERY
  • Publication number: 20180247342
    Abstract: A computer-implemented method and system for generating a digital information campaign on behalf of an entity for distribution to a digital contact list maintained by the entity is disclosed. The system comprises a database server including a database of digital content items, the database including at least one sponsored digital content item originating from a sponsor of the digital information campaign and at least one non-sponsored content item. The system also includes a rules engine for the sponsor to generate a composition rule for determining a composition of the digital information campaign based on the database of digital content items, the sponsor and the entity with the composition rule of the digital marketing campaign requiring at least one sponsored content item to be included in the digital marketing campaign. The system further includes a content compiler for generating the digital marketing campaign in accordance with the composition rule.
    Type: Application
    Filed: September 1, 2016
    Publication date: August 30, 2018
    Inventor: Joel James Montgomery