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    Multiple laser light source sets for scanning display systems
    32.
    发明授权
    Multiple laser light source sets for scanning display systems 有权

    公开(公告)号：US12276790B2

    公开(公告)日：2025-04-15

    申请号：US17580749

    申请日：2022-01-21

    Applicant: GOOGLE LLC

    Inventor： Daniel Adema ,  Stuart James Myron Nicholson

    IPC: G02B27/01 ,  G02B27/14 ,  G02B27/28 ,  G03B21/20

    Abstract: Systems, devices, and methods for accommodating multiple sets of laser light sources in an optical engine of a display system such as a laser projection system are described. Laser light beams may be combined via wavelength-, polarization-, and/or angular-separation-based techniques. First and second sets of laser light beams may be angularly separated such that different sets of partially overlapping pixels are projected by the system, thereby increasing the display pixel density and/or an expanding the field of view of the display. One or more laser die may be mounted to each submount of the optical engine. For embodiments with two laser dies on each submount, collimating lenses may introduce angular separation between laser light beams output by each pair of commonly mounted laser dies. A retroreflector prism may be disposed at a beam combiner to provide a compact extension of the optical path through the beam combiner.

    SCANNING PROJECTOR PIXEL PLACEMENT
    35.
    发明公开
    SCANNING PROJECTOR PIXEL PLACEMENT 审中-公开

    公开(公告)号：US20230400679A1

    公开(公告)日：2023-12-14

    申请号：US18035389

    申请日：2020-12-30

    Applicant: GOOGLE LLC

    Inventor： Stuart James Myron Nicholson ,  Jerrold Richard Randell

    IPC: G02B26/10 ,  G02B27/01

    CPC classification number: G02B26/101 ,  G02B27/017 ,  G02B2027/0196 ,  G02B2027/0178 ,  G02B2027/014

    Abstract: Systems, devices, and techniques are provided for displaying graphical content by modulating an intensity of one or more emitted light beams while redirecting those emitted light beams along a scan path that includes multiple locations of a projection surface Timing information that specifies timing values associated with each of multiple locations on a projection surface of an optical element is received or generated. One or more light beams that each have a respective intensity are emitted, and redirected along a scan path that includes at least some of the multiple locations. During the redirection of the one or more emitted light beams, the respective intensity of each of the one or more emitted light beams is modulated in accordance with the timing information to display one or more pixels of an image at each of the at least some multiple locations.

    Systems, devices, and methods for driving projectors
    37.
    发明授权
    Systems, devices, and methods for driving projectors 有权

    公开(公告)号：US11558589B2

    公开(公告)日：2023-01-17

    申请号：US16906314

    申请日：2020-06-19

    Applicant: GOOGLE LLC

    Inventor： Stuart James Myron Nicholson ,  Isaac James Deroche ,  Jerrold Richard Randell

    IPC: H04N9/31

    Abstract: Systems, devices, and methods for driving projectors are described. The actual area projected over by a laser projector for a given pixel may not exactly match a desired projection area for the pixel, especially at edge regions of an image. In the present systems, devices, and methods, projection data is provided for at least one image to be projected by a laser projector. The projection data can include sets of alternative data sections at edge regions of the at least one image, effectively increasing resolution for the edge regions of the image. Depending on a projection pattern being used by a laser projector at a given time, select alternative data sections can be projected which closely match the actual area covered by the projection pattern, improving image quality.

    COMMUNICATION METHODS AND SYSTEMS
    38.
    发明申请
    COMMUNICATION METHODS AND SYSTEMS 有权

    公开(公告)号：US20220271836A1

    公开(公告)日：2022-08-25

    申请号：US17219017

    申请日：2021-03-31

    Applicant: GOOGLE LLC

    Inventor： Ido Raveh ,  Stuart James Myron Nicholson

    IPC: H04B10/114 ,  H04W76/10 ,  G02B27/01

    Abstract: There is provided a method including receiving an incoming ID at a first wearable heads-up display (WHUD), which incoming ID is associated with a communicant device. The method also includes sending match data from the first WHUD to a match engine. The match data includes a first WHUD ID and the incoming ID. Moreover, the method includes receiving a match indicator at the first WHUD from the match engine. The match indicator is to indicate a match event between the first WHUD and the communicant device based on the match data. Furthermore, the method includes effecting communication between the first WHUD and the communicant device comprising at least one of sending a message from the first WHUD to the communicant device and receiving at the first WHUD a corresponding message from the communicant device. The first WHUD, and a method of operating the match engine are also described.

    BEAM COMBINING ARCHITECTURES FOR SCANNING DISPLAY SYSTEMS
    39.
    发明申请
    BEAM COMBINING ARCHITECTURES FOR SCANNING DISPLAY SYSTEMS 有权

    公开(公告)号：US20220269083A1

    公开(公告)日：2022-08-25

    申请号：US17580745

    申请日：2022-01-21

    Applicant: GOOGLE LLC

    Inventor： Daniel Adema ,  Stuart James Myron Nicholson

    IPC: G02B27/01 ,  G02B27/28 ,  G02B27/14

    Abstract: Systems, devices, and methods for accommodating multiple sets of laser light sources in an optical engine of a display system such as a laser projection system are described. Laser light beams may be combined via wavelength-, polarization-, and/or angular-separation-based techniques. First and second sets of laser light beams may be angularly separated such that different sets of partially overlapping pixels are projected by the system, thereby increasing the display pixel density and/or an expanding the field of view of the display. One or more laser die may be mounted to each submount of the optical engine. For embodiments with two laser dies on each submount, collimating lenses may introduce angular separation between laser light beams output by each pair of commonly mounted laser dies. A retroreflector prism may be disposed at a beam combiner to provide a compact extension of the optical path through the beam combiner.

    SYSTEMS, DEVICES, AND METHODS FOR WAVEGUIDE-BASED EYEBOX EXPANSION IN WEARABLE HEADS-UP DISPLAYS
    40.
    发明申请
    SYSTEMS, DEVICES, AND METHODS FOR WAVEGUIDE-BASED EYEBOX EXPANSION IN WEARABLE HEADS-UP DISPLAYS 有权

    公开(公告)号：US20220057637A1

    公开(公告)日：2022-02-24

    申请号：US17517290

    申请日：2021-11-02

    Applicant: GOOGLE LLC

    Inventor： Stuart James Myron Nicholson ,  Timothy Paul Bodiya ,  Stefan Alexander

    IPC: G02B27/01 ,  G02B6/00 ,  F21V8/00 ,  G02B27/00

    Abstract: Systems, devices, and methods for eyebox expansion in wearable heads-up displays (“WHUDs”) are described. The WHUDs described herein each include a projector and an optical waveguide positioned in an optical path between the projector and an eye of the user. For any given light signal from the projector, the optical waveguide receives the light signal at an input coupler and outputs multiple instances or copies of the light signal from multiple discrete, spatially-separated output couplers. The multiple instances or copies of the light signal may be converged by the optical waveguide directly to respective exit pupils at the user's eye or may be routed by the optical waveguide to a holographic combiner in the user's field of view from which the light signals may be converged to respective exit pupils at the user's eye. The optical waveguide employs exit pupil replication to expand the eyebox of the WHUD.

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