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    Depth based foveated rendering for display systems
    4.
    发明授权
    Depth based foveated rendering for display systems 有权

    公开(公告)号：US11710469B2

    公开(公告)日：2023-07-25

    申请号：US17581760

    申请日：2022-01-21

    申请人： Magic Leap, Inc.

    发明人： Vaibhav Mathur ,  Lionel Ernest Edwin ,  Xiaoyang Zhang ,  Bjorn Nicolaas Servatius Vlaskamp

    IPC分类号： G09G5/391 ,  G06F3/01 ,  G06T5/00

    CPC分类号： G09G5/391 ,  G06F3/013 ,  G06T5/002 ,  G09G2320/0606 ,  G09G2320/0613 ,  G09G2340/0428 ,  G09G2354/00

    摘要： Methods and systems for depth-based foveated rendering in the display system are disclosed. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes using different wavefront divergence. Some embodiments include determining a fixation point of a user's eyes. Location information associated with a first virtual object to be presented to the user via a display device is obtained. A resolution-modifying parameter of the first virtual object is obtained. A particular resolution at which to render the first virtual object is identified based on the location information and the resolution-modifying parameter of the first virtual object. The particular resolution is based on a resolution distribution specifying resolutions for corresponding distances from the fixation point. The first virtual object rendered at the identified resolution is presented to the user via the display system.

    SPATIALLY-RESOLVED DYNAMIC DIMMING FOR AUGMENTED REALITY DEVICE
    6.
    发明申请
    SPATIALLY-RESOLVED DYNAMIC DIMMING FOR AUGMENTED REALITY DEVICE 有权

    公开(公告)号：US20230057556A1

    公开(公告)日：2023-02-23

    申请号：US17895313

    申请日：2022-08-25

    申请人： Magic Leap, Inc.

    发明人： Vaibhav Mathur ,  David Manly ,  Jahja I. Trisnadi ,  Clinton Carlisle ,  Lionel Ernest Edwin ,  Michael Anthony Klug

    IPC分类号： G06T15/50 ,  G06F3/01 ,  G06T15/80 ,  G02B27/01

    摘要： Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.

    Spatially-resolved dynamic dimming for augmented reality device
    7.
    发明授权
    Spatially-resolved dynamic dimming for augmented reality device 有权

    公开(公告)号：US11461961B2

    公开(公告)日：2022-10-04

    申请号：US17330146

    申请日：2021-05-25

    申请人： Magic Leap, Inc.

    发明人： Vaibhav Mathur ,  David Manly ,  Jahja I. Trisnadi ,  Clinton Carlisle ,  Lionel Ernest Edwin ,  Michael Anthony Klug

    IPC分类号： G06T15/50 ,  G06F3/01 ,  G06T15/80 ,  G02B27/01

    摘要： Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.

    LOW MOTION-TO-PHOTON LATENCY ARCHITECTURE FOR AUGMENTED AND VIRTUAL REALITY DISPLAY SYSTEMS
    9.
    发明申请
    LOW MOTION-TO-PHOTON LATENCY ARCHITECTURE FOR AUGMENTED AND VIRTUAL REALITY DISPLAY SYSTEMS 有权

    公开(公告)号：US20220091427A1

    公开(公告)日：2022-03-24

    申请号：US17418190

    申请日：2019-12-20

    申请人： Magic Leap, Inc.

    发明人： Lionel Ernest Edwin ,  Andrew Ian Russell ,  Howard Russell Cohen

    IPC分类号： G02B27/09 ,  G02B27/00 ,  G02B27/01

    摘要： Systems and methods are disclosed for low motion-to-photon latency for augmented and virtual reality systems. Some systems generate rendered frames that are presented to a user by outputting light from a head-mounted display unit. The rendered frames are perceived by the user as virtual content. The head-mounted display unit includes an orientation sensor, a display configured to output light to the user, and processors. The processors receive a rendered frame of virtual content, obtain orientation information from the orientation sensor, and warp or modify the rendered frame of virtual content based on changes to the orientation of the user's head. The warped rendered frame is subsequently outputted from the display using modulated light. The processors and the orientation sensor may be part of a spatial light modulator for modulating the light used to present the warped rendered frame. In addition, the spatial light modulator may be a LED array having low persistence and a high duty cycle.

    Color separation in planar waveguides using an optical filter between two diffractive optical elements (DOE)
    10.
    发明授权
    Color separation in planar waveguides using an optical filter between two diffractive optical elements (DOE) 有权

    公开(公告)号：US11249255B2

    公开(公告)日：2022-02-15

    申请号：US17080643

    申请日：2020-10-26

    申请人： Magic Leap, Inc.

    发明人： Ivan Li Chuen Yeoh ,  Lionel Ernest Edwin ,  Hui-Chuan Cheng

    IPC分类号： G02B6/293 ,  G02B27/10 ,  G02B27/42 ,  F21V8/00 ,  G02B27/00 ,  G02B27/44 ,  G02B5/18

    摘要： An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first planar waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a first lateral position. The second planar waveguide includes a second DOE coupled thereto and disposed at a second lateral position. The third planar waveguide includes a third DOE coupled thereto and disposed at the second lateral position. The eyepiece further includes an optical filter positioned between the second planar waveguide and the third planar waveguide at the second lateral position.