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    NONLINEAR CONSECUTIVE SCANNING PROJECTOR
    2.
    发明公开
    NONLINEAR CONSECUTIVE SCANNING PROJECTOR 审中-公开

    公开(公告)号：US20230258923A1

    公开(公告)日：2023-08-17

    申请号：US17825661

    申请日：2022-05-26

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Brian Wheelwright ,  Daniel Guenther Greif ,  Jacques Gollier

    IPC: G02B26/10 ,  G02B26/08

    CPC classification number: G02B26/101 ,  G02B26/0816

    Abstract: A scanning projector is disclosed, including a light engine for providing a light beam, a beam scanner for scanning the light beam about two axes, and a controller operably coupled to the light engine and the beam scanner and configured to cause the beam scanner to non-linearly scan the light beam about the first and second axes within the field of view while varying brightness of the light beam to provide the image. The nonlinear scanning is performed such that consecutive scans provide conterminous portions of the image. This enables one to increase a local rate of providing the image across at least 75% of an area of the field of view is greater than 1500 degrees per second. The high local rate results in a significant reduction of artifacts caused by motion of displayed object, the users eyes or head, etc.

    Image painting with multi-emitter light source
    6.
    发明授权
    Image painting with multi-emitter light source 有权

    公开(公告)号：US11627291B2

    公开(公告)日：2023-04-11

    申请号：US16450271

    申请日：2019-06-24

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Daniel Guenther Greif ,  James Laudolff

    IPC: H04N9/31 ,  G02B26/10 ,  G02B27/30 ,  G03B21/14

    Abstract: A scanning projector display includes a light engine comprising N emitters coupled to a collimator for providing a fan of N light beams of variable optical power levels, where N>1. The N emitters are spaced apart from each other such that pixels of the image simultaneously energized by neighboring ones of the N emitters are non-adjacent. A scanner receives and angularly scans the fan of N light beams about first and second non-parallel axes to provide an image in angular domain. A controller coupled to the scanner and the light engine causes the scanner to simultaneously scan the fan of N light beams about the first and second axes, and cause the light engine to vary the optical power levels of the N emitters with time delays such that adjacent pixels of the image are energized by different ones of the N emitters.

    Compact array light source for scanning display
    8.
    发明授权
    Compact array light source for scanning display 有权

    公开(公告)号：US11714282B2

    公开(公告)日：2023-08-01

    申请号：US16506899

    申请日：2019-07-09

    Applicant: META PLATFORMS TECHNOLOGIES, LLC

    Inventor： Wanli Chi ,  Chadwick Brian Martin ,  Scott Charles McEldowney ,  Maxwell Parsons ,  Stephen James McNally ,  Daniel Guenther Greif

    IPC: G02B27/01

    CPC classification number: G02B27/0172 ,  G02B27/0176 ,  G02B2027/0178

    Abstract: A light source includes a first set of source elements and a second set of source elements. A respective set of source elements is disposed on a respective substrate and electrically coupled to a respective set of circuit pads formed on a respective top surface of the respective substrate by respective bond wires. At least a portion of the respective top surfaces face each other and are spaced apart from each other to accommodate at least some of the first set of source elements, at least some of the second set of source elements, and at least some of the bond wires. The display device that includes a light source configured to output image light, an optical assembly configured to collimate the image light, a scanning assembly configured to steer the image light, and an output device configured to output the image light for displaying images is also disclosed.

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