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    OUTCOUPLING GRATING FOR AUGMENTED REALITY SYSTEM
    12.
    发明申请
    OUTCOUPLING GRATING FOR AUGMENTED REALITY SYSTEM 审中-公开

    公开(公告)号：US20180113313A1

    公开(公告)日：2018-04-26

    申请号：US15793871

    申请日：2017-10-25

    Applicant: Magic Leap, Inc.

    Inventor： Robert D. TEKOLSTE ,  Victor K. LIU

    IPC: G02B27/01 ,  G02B27/00 ,  G02B5/30 ,  G06T19/00 ,  G02B6/293

    CPC classification number: G02B27/0172 ,  G02B5/1861 ,  G02B5/1866 ,  G02B27/0081 ,  G02B2027/0112 ,  G02B2027/0125

    Abstract: An eyepiece for projecting an image to an eye of a viewer includes a waveguide configured to propagate light therein, and a diffractive optical element optically coupled to the waveguide. The diffractive optical element includes a plurality of first ridges protruding from a surface of the waveguide. Each of the plurality of first ridges has a first height and a first width. The diffractive optical element further includes a plurality of second ridges. Each of the plurality of second ridges protrudes from a respective first ridge and has a second height greater than the first height and a second width less than the first width. The diffractive optical element is configured to diffract a first portion of the light propagating in the waveguide toward the eye, and to diffract a second portion of the light propagating in the waveguide away from the eye.

    MANUFACTURING FOR VIRTUAL AND AUGMENTED REALITY SYSTEMS AND COMPONENTS
    15.
    发明申请
    MANUFACTURING FOR VIRTUAL AND AUGMENTED REALITY SYSTEMS AND COMPONENTS 有权

    公开(公告)号：US20220244439A1

    公开(公告)日：2022-08-04

    申请号：US17660526

    申请日：2022-04-25

    Applicant: Magic Leap, Inc.

    Inventor： Robert D. TEKOLSTE ,  Michael Anthony KLUG ,  Paul M. GRECO ,  Brian T. SCHOWENGERDT

    IPC: G02B5/18 ,  B29D11/00 ,  G02B27/01

    Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.

    BEAM ANGLE SENSOR IN VIRTUAL/AUGMENTED REALITY SYSTEM
    16.
    发明申请
    BEAM ANGLE SENSOR IN VIRTUAL/AUGMENTED REALITY SYSTEM 审中-公开

    公开(公告)号：US20200333602A1

    公开(公告)日：2020-10-22

    申请号：US16837617

    申请日：2020-04-01

    Applicant: Magic Leap, Inc.

    Inventor： Ivan L. YEOH ,  Lionel Ernest EDWIN ,  Robert D. TEKOLSTE

    IPC: G02B27/01 ,  F21V8/00 ,  G06F3/01 ,  G02B27/00 ,  G01B11/27 ,  G02B26/10 ,  G06F3/00 ,  G06T15/50 ,  G06T19/00

    Abstract: A virtual image generation system for use by an end user comprises a projection subsystem configured for generating a collimated light beam, and a display configured emitting light rays in response to the collimated light beam to display a pixel of an image frame to the end user. The pixel has a location encoded with angles of the emitted light rays. The virtual image generation system further comprises a sensing assembly configured for sensing at least one parameter indicative of at least one of the emitted light ray angles, and a control subsystem configured for generating image data defining a location of the pixel, and controlling an angle of the light beam relative to the display based on the defined location of the pixel and the sensed parameter(s).

    MANUFACTURING FOR VIRTUAL AND AUGMENTED REALITY SYSTEMS AND COMPONENTS
    17.
    发明申请
    MANUFACTURING FOR VIRTUAL AND AUGMENTED REALITY SYSTEMS AND COMPONENTS 审中-公开

    公开(公告)号：US20200257025A1

    公开(公告)日：2020-08-13

    申请号：US16862251

    申请日：2020-04-29

    Applicant: Magic Leap, Inc.

    Inventor： Robert D. TEKOLSTE ,  Michael Anthony KLUG ,  Paul M. GRECO ,  Brian T. SCHOWENGERDT

    IPC: G02B5/18 ,  B29D11/00 ,  G02B27/01

    Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.

    METHODS AND SYSTEMS FOR GENERATING VIRTUAL CONTENT DISPLAY WITH A VIRTUAL OR AUGMENTED REALITY APPARATUS
    19.
    发明申请
    METHODS AND SYSTEMS FOR GENERATING VIRTUAL CONTENT DISPLAY WITH A VIRTUAL OR AUGMENTED REALITY APPARATUS 审中-公开

    公开(公告)号：US20190094536A1

    公开(公告)日：2019-03-28

    申请号：US16203235

    申请日：2018-11-28

    Applicant: MAGIC LEAP, INC.

    Inventor： Robert D. TEKOLSTE ,  Michael KLUG

    IPC: G02B27/01 ,  G02B27/22 ,  G02B5/18 ,  G02B27/00 ,  G03H1/04 ,  G02F1/1334

    Abstract: Several unique configurations for interferometric recording of volumetric phase diffractive elements with relatively high angle diffraction for use in waveguides are disclosed. Separate layer EPE and OPE structures produced by various methods may be integrated in side-by-side or overlaid constructs, and multiple such EPE and OPE structures may be combined or multiplexed to exhibit EPE/OPE functionality in a single, spatially-coincident layer. Multiplexed structures reduce the total number of layers of materials within a stack of eyepiece optics, each of which may be responsible for displaying a given focal depth range of a volumetric image. Volumetric phase type diffractive elements are used to offer properties including spectral bandwidth selectivity that may enable registered multi-color diffracted fields, angular multiplexing capability to facilitate tiling and field-of-view expansion without crosstalk, and all-optical, relatively simple prototyping compared to other diffractive element forms, enabling rapid design iteration.

    METHODS AND SYSTEM FOR CREATING FOCAL PLANES USING AN ALVAREZ LENS
    20.
    发明申请
    METHODS AND SYSTEM FOR CREATING FOCAL PLANES USING AN ALVAREZ LENS 审中-公开

    公开(公告)号：US20190041558A1

    公开(公告)日：2019-02-07

    申请号：US16055830

    申请日：2018-08-06

    Applicant: MAGIC LEAP, INC.

    Inventor： Robert D. TEKOLSTE

    IPC: G02B5/18 ,  G02B27/01

    CPC classification number: G02B5/1871 ,  G02B5/1814 ,  G02B5/1828 ,  G02B5/1842 ,  G02B27/0172 ,  G02B2027/0174

    Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a lens assembly comprising two transmissive plates, a first of the two transmissive plates comprising a first surface sag based at least in part on a cubic function, and a DOE to direct image information to a user's eye; wherein the DOE is placed in between the two transmissive plates of the lens assembly, and wherein the DOE is encoded with the inverse of the cubic function corresponding to the surface sag of the first transmissive plate; such that a wavefront created by the encoded DOE is compensated by the wavefront created by the first transmissive plate, thereby collimating light rays associated with virtual content delivered to the DOE.

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