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    PROJECTOR INTEGRATED WITH A SCANNING MIRROR
    4.
    发明公开
    PROJECTOR INTEGRATED WITH A SCANNING MIRROR 审中-公开

    公开(公告)号：EP4293399A2

    公开(公告)日：2023-12-20

    申请号：EP23207072.2

    申请日：2019-09-27

    申请人： Magic Leap, Inc.

    发明人： SCHOWENGERDT, Brian T. ,  WATSON, Mathew D. ,  HICKMAN, Steven Alexander-Boyd ,  MELVILLE, Charles David ,  FRANK, Samuel Scott

    IPC分类号： G02B6/00

    摘要： A waveguide display system (1400), comprising a waveguide (1442) having a first surface (1421) and a second surface (1422), the waveguide(1442) including an incoupling diffractive optical element (1446), DOE, and an outcoupling DOE (1448); a point light source (1415) configured to provide a divergent input light beam (1411); a scanning mirror (1420) adjacent to the second surface (1422), configured to receive the divergent input light beam (1411) through the waveguide (1442) and to provide a divergent reflected light beam (1455); a collimating scanning optical element (1430) adjacent to the first surface (1421), configured to receive the divergent reflected light beam (1455) through the incoupling DOE (1446) and to produce a collimated reflected light beam (1460); wherein the incoupling DOE (1446) is configured to prevent the divergent reflected light beam (1455) from the scanning mirror (1420) from propagating to the outcoupling DOE (1448) through total internal reflection TIR; and cause the collimated reflected light beam (1460) to propagate to the outcoupling DOE (1448) through TIR.

    METHODS AND SYSTEMS FOR MULTI-ELEMENT LINKAGE FOR FIBER SCANNING DISPLAY
    5.
    发明公开
    METHODS AND SYSTEMS FOR MULTI-ELEMENT LINKAGE FOR FIBER SCANNING DISPLAY 审中-公开

    公开(公告)号：EP4270086A2

    公开(公告)日：2023-11-01

    申请号：EP23195728.3

    申请日：2017-12-21

    申请人： Magic Leap, Inc.

    发明人： SCHOWENGERDT, Brian T. ,  WATSON, Mathew D. ,  MELVILLE, Charles David ,  LEE, William Andrew

    IPC分类号： G02B26/10

    摘要： A multi-element fiber scanner for scanning electromagnetic imaging radiation, the multi-element fiber scanner comprising: a base (110) having a base plane (107) and a longitudinal axis (112) orthogonal to the base plane (107); a first fiber link (940) passing through the base (110) in a direction parallel to the longitudinal axis (112), wherein the first fiber link is operatively coupled to at least one electromagnetic radiation source; a plurality of actuation elements joined to the base and extending from the base along the longitudinal axis; and a retention collar (130) disposed a predetermined distance along the longitudinal axis (112) from the base (110), wherein the first fiber link and the plurality of actuation elements are joined to the retention collar; a first set of piezoelectric tubes (905), wherein: a first piezoelectric tube (910) of the first set is joined to the base (110) and extends from the base (110); and a second piezoelectric tube (912) of the first set is joined to the retention collar (130) and extends from the retention collar (130); and a second set of piezoelectric tubes (905), wherein: a first piezoelectric tube (910) of the second set is joined to the base (110) and extends from the base (110); and a second piezoelectric tube (912) of the second set is joined to the retention collar (130) and extends from the retention collar (130).

    METHOD AND SYSTEM FOR TRACKING EYE MOVEMENT IN CONJUNCTION WITH A LIGHT SCANNING PROJECTOR
    6.
    发明公开
    METHOD AND SYSTEM FOR TRACKING EYE MOVEMENT IN CONJUNCTION WITH A LIGHT SCANNING PROJECTOR 审中-公开

    公开(公告)号：EP4235258A2

    公开(公告)日：2023-08-30

    申请号：EP23171485.8

    申请日：2018-03-21

    申请人： Magic Leap, Inc.

    发明人： SCHOWENGERDT, Brian T. ,  WATSON, Mathew D. ,  FRANK, Scott ,  MELVILLE, Charles David

    IPC分类号： G02B27/00

    摘要： An eye tracking system (600) comprising: a pair of glasses (210); a light scanning projector (620) coupled to the pair of glasses and operable to scan a beam of light; an eyepiece (630) mounted in one of the two frames (212) and optically coupled to the light scanning projector (620); one or more photodetectors (640) coupled to at least one of the two frames (212) of the pair of glasses (210) and operable to detect a first set of time-varying reflected signals associated with a first series of pixels and a second set of time-varying reflected signals associated with a second series of pixels projected by the light scanning projector (620); and a processor (610) operable to determine an eye orientation based on a correlation between the first set of time-varying reflected signals and the first series of pixels and a correlation between the second set of time-varying reflected signals and the second series of pixels.