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    OPTICAL SYSTEMS WITH MULTI-LAYER HOLOGRAPHIC COMBINERS
    1.
    发明申请
    OPTICAL SYSTEMS WITH MULTI-LAYER HOLOGRAPHIC COMBINERS 审中-公开

    公开(公告)号：WO2020112520A1

    公开(公告)日：2020-06-04

    申请号：PCT/US2019/062735

    申请日：2019-11-22

    Applicant: APPLE INC.

    Inventor： HOLLANDS, Matthew D. ,  SIMMONDS, Michael D. ,  TOPLISS, Richard J. ,  GREGORY, Thomas M.

    IPC: G02B27/01 ,  G02B5/18 ,  G02B5/32 ,  F21V8/00 ,  G03B21/60

    Abstract: An electronic device may include a display module that generates image light and an optical system that redirects the light towards an eye box. The optical system may have first hologram structures that replicate the light over multiple output angles onto second hologram structures. The second hologram structures may focus the replicated light onto the eye box. If desired, the device may include an image sensor. The first and second hologram structures may include transmission and/or reflection holograms. The optical system may redirect a first portion of the light to the eye box and a second portion of the light to the sensor. The sensor may generate image data based on the second portion of the light. Control circuitry may compensate for distortions in the first portion of the light by performing feedback adjustments to the display module based on distortions in the image data.

    AUGMENTED REALITY SYSTEM
    2.
    发明申请
    AUGMENTED REALITY SYSTEM 审中-公开

    公开(公告)号：WO2018057660A3

    公开(公告)日：2018-03-29

    申请号：PCT/US2017/052573

    申请日：2017-09-20

    Applicant: APPLE INC.

    Inventor： TOPLISS, Richard J. ,  GELSINGER-AUSTIN, Paul J. ,  GREGORY, Thomas M. ,  TSAI, Richard H. ,  SHPUNT, Alexander

    IPC: G02B27/01

    Abstract: An augmented reality headset may include a reflective holographic combiner to direct light from a light engine into a user's eye while also transmitting light from the environment. The combiner and engine may be arranged to project light fields with different fields of view and resolution to match the visual acuity of the eye. The combiner may be recorded with a series of point to point holograms; one projection point interacts with multiple holograms to project light onto multiple eye box points. The engine may include a laser diode array, a distribution waveguide, scanning mirrors, and layered waveguides that perform pupil expansion and that emit wide beams of light through foveal projection points and narrower beams of light through peripheral projection points. The light engine may include focusing elements to focus the beams such that, once reflected by the holographic combiner, the light is substantially collimated.

    AUGMENTED REALITY SYSTEM
    3.
    发明申请
    AUGMENTED REALITY SYSTEM 审中-公开
    增强现实系统

    公开(公告)号：WO2018057660A2

    公开(公告)日：2018-03-29

    申请号：PCT/US2017/052573

    申请日：2017-09-20

    Applicant: APPLE INC.

    Inventor： TOPLISS, Richard J. ,  GELSINGER-AUSTIN, Paul J. ,  GREGORY, Thomas M. ,  TSAI, Richard H. ,  SHPUNT, Alexander

    IPC: G02B27/01

    Abstract: An augmented reality headset may include a reflective holographic combiner to direct light from a light engine into a user's eye while also transmitting light from the environment. The combiner and engine may be arranged to project light fields with different fields of view and resolution to match the visual acuity of the eye. The combiner may be recorded with a series of point to point holograms; one projection point interacts with multiple holograms to project light onto multiple eye box points. The engine may include a laser diode array, a distribution waveguide, scanning mirrors, and layered waveguides that perform pupil expansion and that emit wide beams of light through foveal projection points and narrower beams of light through peripheral projection points. The light engine may include focusing elements to focus the beams such that, once reflected by the holographic combiner, the light is substantially collimated.

    Abstract translation: 增强现实耳机可以包括反射型全息组合器，以将来自光引擎的光引导到用户的眼睛中，同时还传输来自环境的光。 组合器和引擎可以被布置为投影具有不同视场和分辨率的光场以匹配眼睛的视觉敏锐度。 组合器可以记录一系列点对点全息图; 一个投影点与多个全息图相互作用，以将光投影到多个眼框点上。 发动机可以包括激光二极管阵列，分布波导，扫描镜和分层波导，其执行瞳孔扩展并且通过中心凹投影点发射宽光束并且通过外围投影点发射较窄光束。 光引擎可以包括聚焦元件以聚焦光束，使得一旦由全息组合器反射，光基本上被准直。

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