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    Virtual and augmented reality systems and methods having unequal numbers of component color images distributed across depth planes
    101.
    发明授权
    Virtual and augmented reality systems and methods having unequal numbers of component color images distributed across depth planes 有权

    公开(公告)号：US11500208B2

    公开(公告)日：2022-11-15

    申请号：US17145156

    申请日：2021-01-08

    Applicant: Magic Leap, Inc.

    Inventor： Brian T. Schowengerdt ,  Hong Hua ,  Hui-Chuan Cheng ,  Christophe Peroz

    IPC: G02B27/01 ,  G02B5/18 ,  G06V40/19 ,  G06V40/18 ,  F21V8/00 ,  G06T5/00 ,  G06T19/00

    Abstract: Images perceived to be substantially full color or multi-colored may be formed using component color images that are distributed in unequal numbers across a plurality of depth planes. The distribution of component color images across the depth planes may vary based on color. In some embodiments, a display system includes a stack of waveguides that each output light of a particular color, with some colors having fewer numbers of associated waveguides than other colors. The stack of waveguides may include by multiple pluralities (e.g., first and second pluralities) of waveguides, each configured to produce an image by outputting light corresponding to a particular color. The total number of waveguides in the second plurality of waveguides is less than the total number of waveguides in the first plurality of waveguides, and may be more than the total number of waveguides in a third plurality of waveguides, in embodiments where three component colors are utilized.

    Augmented reality display having multi-element adaptive lens for changing depth planes
    103.
    发明授权
    Augmented reality display having multi-element adaptive lens for changing depth planes 有权

    公开(公告)号：US11249309B2

    公开(公告)日：2022-02-15

    申请号：US16006080

    申请日：2018-06-12

    Applicant: Magic Leap, Inc.

    Inventor： Jason Schaefer ,  Hui-Chuan Cheng ,  David Manly ,  Jahja I. Trisnadi ,  Clinton Carlisle ,  Michael Anthony Klug

    IPC: G02F1/03 ,  G02B27/01 ,  G02F1/29 ,  G02F1/01 ,  G02F1/13 ,  G02F1/1337

    Abstract: In some embodiments, an augmented reality system includes at least one waveguide that is configured to receive and redirect light toward a user, and is further configured to allow ambient light from an environment of the user to pass therethrough toward the user. The augmented reality system also includes a first adaptive lens assembly positioned between the at least one waveguide and the environment, a second adaptive lens assembly positioned between the at least one waveguide and the user, and at least one processor operatively coupled to the first and second adaptive lens assemblies. Each lens assembly of the augmented reality system is selectively switchable between at least two different states in which the respective lens assembly is configured to impart at least two different optical powers to light passing therethrough, respectively. The at least one processor is configured to cause the first and second adaptive lens assemblies to synchronously switch between different states in a manner such that the first and second adaptive lens assemblies impart a substantially constant net optical power to ambient light from the environment passing therethrough.

    METHODS AND SYSTEMS FOR HIGH EFFICIENCY EYEPIECE IN AUGMENTED REALITY DEVICES
    104.
    发明申请
    METHODS AND SYSTEMS FOR HIGH EFFICIENCY EYEPIECE IN AUGMENTED REALITY DEVICES 有权

    公开(公告)号：US20210356748A1

    公开(公告)日：2021-11-18

    申请号：US17332373

    申请日：2021-05-27

    Applicant: Magic Leap, Inc.

    Inventor： Hui-Chuan Cheng

    IPC: G02B27/01 ,  G02B25/00 ,  F21V8/00 ,  G02B27/00 ,  G02B5/122

    Abstract: A display system includes projection optics configured to project a beam of light in a first direction and an eyepiece unit including a first waveguide layer disposed in a first lateral plane and including an incident light surface and an opposing surface opposite the incident light surface and an incoupling diffractive optical element disposed on the incident light surface. The incoupling diffractive optical element is configured to incouple a first portion of the beam of light and to propagate the first portion of the beam of light by total internal reflection in a second direction and transmit a second portion of the beam of light along the first direction. The eyepiece also includes a retroreflector disposed adjacent the opposing surface. The retroreflector is configured to retroreflect the second portion of the beam of light along a reflected direction opposite to the first direction.

    Projector architecture incorporating artifact mitigation
    106.
    发明授权
    Projector architecture incorporating artifact mitigation 有权

    公开(公告)号：US11016292B2

    公开(公告)日：2021-05-25

    申请号：US15897971

    申请日：2018-02-15

    Applicant: Magic Leap, Inc.

    Inventor： Miller Harry Schuck, III ,  Kevin Richard Curtis ,  Hui-Chuan Cheng ,  Bradley Jay Sissom ,  Paul M. Greco ,  William Hudson Welch ,  Eric C. Browy

    IPC: G02B27/00 ,  F21V8/00 ,  G03B21/20 ,  G03B21/00 ,  G02B27/28

    Abstract: An eyepiece unit with optical filters includes a set of waveguide layers including a first waveguide layer and a second waveguide layer. The first waveguide layer is disposed in a first lateral plane and includes a first incoupling diffractive element disposed at a first lateral position, a first waveguide, and a first outcoupling diffractive element. The second waveguide layer is disposed in a second lateral plane adjacent to the first lateral plane and includes a second incoupling diffractive element disposed at a second lateral position, a second waveguide, and a second outcoupling diffractive element. The eyepiece unit also includes a set of optical filters including a first optical filter positioned at the first lateral position and operable to attenuate light outside a first spectral band and a second optical filter positioned at the second lateral position and operable to attenuate light outside a second spectral band.

    Virtual and augmented reality systems and methods
    107.
    发明授权
    Virtual and augmented reality systems and methods 有权

    公开(公告)号：US10739593B2

    公开(公告)日：2020-08-11

    申请号：US15443002

    申请日：2017-02-27

    Applicant: MAGIC LEAP, INC.

    Inventor： Hui-Chuan Cheng

    IPC: G02B26/08 ,  G02B26/10 ,  G02B26/12 ,  G02B27/14 ,  G02B27/01 ,  F21V8/00 ,  G02B27/10 ,  G02B27/28 ,  G02B27/42

    Abstract: An imaging system includes a light source configured to generate a light beam. The system also includes first and second light guiding optical elements having respective first and second entry portions, and configured to propagate at least respective first and second portions of the light beam by total internal reflection. The system further includes a light distributor having a light distributor entry portion, a first exit portion, and a second exit portion. The light distributor is configured to direct the first and second portions of the light beam toward the first and second entry portions, respectively. The light distributor entry portion and the first exit portion are aligned along a first axis. The light distributor entry portion and the second exit portion are aligned along a second axis different from the first axis.

    Method and system for high resolution digitized display
    109.
    发明授权
    Method and system for high resolution digitized display 有权

    公开(公告)号：US10678055B2

    公开(公告)日：2020-06-09

    申请号：US15826315

    申请日：2017-11-29

    Applicant: Magic Leap, Inc.

    Inventor： Lionel Ernest Edwin ,  Ivan Li Chuen Yeoh ,  Brian T. Schowengerdt ,  Kevin Richard Curtis ,  William Hudson Welch ,  Pierre St. Hilaire ,  Hui-Chuan Cheng

    IPC: G02B27/01 ,  F21V8/00

    Abstract: A method and system for increasing dynamic digitized wavefront resolution, i.e., the density of output beamlets, can include receiving a single collimated source light beam and producing multiple output beamlets spatially offset when out-coupled from a waveguide. The multiple output beamlets can be obtained by offsetting and replicating a collimated source light beam. Alternatively, the multiple output beamlets can be obtained by using a collimated incoming source light beam having multiple input beams with different wavelengths in the vicinity of the nominal wavelength of a particular color. The collimated incoming source light beam can be in-coupled into the eyepiece designed for the nominal wavelength. The input beams with multiple wavelengths take different paths when they undergo total internal reflection in the waveguide, which produces multiple output beamlets.

    Low-profile beam splitter
    110.
    发明授权
    Low-profile beam splitter 有权

    公开(公告)号：US10564533B2

    公开(公告)日：2020-02-18

    申请号：US15927807

    申请日：2018-03-21

    Applicant: Magic Leap, Inc.

    Inventor： Jahja Trisnadi ,  Pierre St. Hilaire ,  Hui-Chuan Cheng ,  Clinton Carlisle ,  Michael Anthony Klug ,  Kevin Richard Curtis

    IPC: G03B21/20 ,  G02B27/10 ,  G02B27/09 ,  G03B21/00 ,  G06K9/00

    Abstract: Examples of light projector systems for directing input light from a light source to a spatial light modulator are provided. For example, an optical device is disclosed which includes a first surface having a diffractive optical element, a second surface normal to the first surface, and a third surface arranged at an angle to the second surface. The third surface may be a beam splitting surface that is reflective to light of a first state and transmissive to light of a second state. The diffractive optical element may receive an input beam made up of light having the first state, and convert the input beam into at least a first diffracted beam at a first diffraction angle such that the first diffracted beam is directed toward the third surface and is reflected by the third surface in a direction substantially parallel to the first surface.

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