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    Multimodal eye tracking
    3.
    发明授权
    Multimodal eye tracking 有权

    公开(公告)号：US11449140B2

    公开(公告)日：2022-09-20

    申请号：US17678314

    申请日：2022-02-23

    Applicant: Magic Leap, Inc.

    Inventor： Edwin Joseph Selker ,  Ivan Yeoh

    IPC: G06F3/01 ,  G06T19/00 ,  G06F3/0346 ,  G02B27/01

    Abstract: A method is disclosed, the method comprising the steps of receiving, at a first time interval from a first sensor configured to output data indicative of a first position of an eye, first data; receiving, at a second time interval from a second sensor configured to output data indicative of a delta position of the eye, second data; determining, based on the first data, a first position of the eye; determining, based on the second data, a delta position of the eye; determining, using the first position of the eye and the delta position of the eye, a second absolute position of the eye; and in response to determining the second position of the eye, generating an output signal indicative of the second position of the eye.

    Multimodal eye tracking
    4.
    发明授权
    Multimodal eye tracking 有权

    公开(公告)号：US11561615B2

    公开(公告)日：2023-01-24

    申请号：US17886323

    申请日：2022-08-11

    Applicant: Magic Leap, Inc.

    Inventor： Edwin Joseph Selker ,  Ivan Yeoh

    IPC: G06F3/01 ,  G06T19/00 ,  G06F3/0346 ,  G02B27/01

    Abstract: A method is disclosed, the method comprising the steps of receiving, at a first time interval from a first sensor configured to output data indicative of a first position of an eye, first data; receiving, at a second time interval from a second sensor configured to output data indicative of a delta position of the eye, second data; determining, based on the first data, a first position of the eye; determining, based on the second data, a delta position of the eye; determining, using the first position of the eye and the delta position of the eye, a second absolute position of the eye; and in response to determining the second position of the eye, generating an output signal indicative of the second position of the eye.

    VIRTUAL/AUGMENTED REALITY SYSTEM HAVING REVERSE ANGLE DIFFRACTION GRATING
    5.
    发明申请
    VIRTUAL/AUGMENTED REALITY SYSTEM HAVING REVERSE ANGLE DIFFRACTION GRATING 有权

    公开(公告)号：US20210157146A1

    公开(公告)日：2021-05-27

    申请号：US17143432

    申请日：2021-01-07

    Applicant: MAGIC LEAP, INC.

    Inventor： Ivan Yeoh ,  Hui-Chuan Cheng ,  Lionel Ernest Edwin ,  David Tinch ,  William Hudson Welch

    IPC: G02B27/01 ,  G02B6/00 ,  F21V8/00 ,  G02B26/10 ,  G06T15/00 ,  G06T19/00

    Abstract: A display subsystem for a virtual image generation system comprises a planar waveguide apparatus, an optical fiber, at least one light source configured for emitting light from a distal end of the optical fiber, and a mechanical drive assembly to which the optical fiber is mounted as a fixed-free flexible cantilever. The drive assembly is configured for displacing a distal end of the optical fiber about a fulcrum in accordance with a scan pattern, such that the emitted light diverges from a longitudinal axis coincident with the fulcrum. The display subsystem further comprises an optical modulation apparatus configured for converging the light from the optical fiber towards the longitudinal axis, and an optical waveguide input apparatus configured for directing the light from the optical modulation apparatus down the planar waveguide apparatus, such that the planar waveguide apparatus displays one or more image frames to an end user.

    CONTINUOUS TIME WARP AND BINOCULAR TIME WARP FOR VIRTUAL AND AUGMENTED REALITY DISPLAY SYSTEMS AND METHODS
    8.
    发明申请
    CONTINUOUS TIME WARP AND BINOCULAR TIME WARP FOR VIRTUAL AND AUGMENTED REALITY DISPLAY SYSTEMS AND METHODS 审中-公开

    公开(公告)号：US20180061121A1

    公开(公告)日：2018-03-01

    申请号：US15686885

    申请日：2017-08-25

    Applicant: Magic Leap, Inc.

    Inventor： Ivan Yeoh ,  Lionel Edwin ,  Samuel A. Miller

    IPC: G06T15/20 ,  G06T19/00 ,  G06T15/00 ,  G06T1/60

    Abstract: Embodiments of the present disclosure relate to continuous and/or binocular time warping methods to account for head movement of the user without having to re-render a displayed image. Continuous time warping allows for transformation of an image from a first perspective to a second perspective of the viewer without having to re-render the image from the second perspective. Binocular time warp refers to the late-frame time warp used in connection with a display device including a left display unit for the left eye and a right display unit for the right eye where the late-frame time warp is performed separately for the left display unit and the right display unit. Warped images are sent to the left and the right display units where photons are generated and emitted toward respective eyes of the viewer, thereby displaying an image on the left and the right display units at the same time.

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