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    WAVEGUIDE ILLUMINATOR
    1.
    发明申请
    WAVEGUIDE ILLUMINATOR 有权

    公开(公告)号：US20250164804A1

    公开(公告)日：2025-05-22

    申请号：US19030440

    申请日：2025-01-17

    Applicant: Magic Leap, Inc.

    Inventor： Kevin Richard Curtis ,  Bradley Jay Sissom ,  Hui-Chuan Cheng ,  Miller Harry Schuck, III ,  Samarth Bhargava ,  Erik Heath Arend

    IPC: G02B27/01 ,  F21V8/00

    Abstract: A head mounted display system configured to project a first image to an eye of a user, the head mounted display system includes at least one waveguide comprising a first major surface, a second major surface opposite the first major surface, and a first edge and a second edge between the first major surface and second major surface. The at least one waveguide also includes a first reflector disposed between the first major surface and the second major surface. The head mounted display system also includes at least one light source disposed closer to the first major surface than the second major surface and a spatial light modulator configured to form a second image and disposed closer to the first major surface than the second major surface, wherein the first reflector is configured to reflect light toward the spatial light modulator.

    WAVEGUIDE ILLUMINATOR
    4.
    发明申请
    WAVEGUIDE ILLUMINATOR 有权

    公开(公告)号：US20220206301A1

    公开(公告)日：2022-06-30

    申请号：US17571366

    申请日：2022-01-07

    Applicant: Magic Leap, Inc.

    Inventor： Kevin Richard Curtis ,  Bradley Jay Sissom ,  Hui-Chuan Cheng ,  Miller Harry Schuck, III ,  Samarth Bhargava ,  Erik Heath Arend

    IPC: G02B27/01 ,  F21V8/00

    Abstract: An optical system for an augmented reality head mounted display eyepiece that is configured to deliver images to the eye wherein the optical system includes optics. The optics are disposed so as to receive light output from the light source. The optics further arranged with respect to a spatial light modulator such that the light received from the light source passes through the optics and illuminates the spatial light modulator. The light illuminating the spatial light modulator is redirected back through the optics and is coupled into at least one waveguide through at least one in-coupling optical element. At least a portion of the coupled light is ejected from at least one waveguide by at least one out-coupling optical element and directed to the eye of the user.

    EYEPIECES FOR AUGMENTED REALITY DISPLAY SYSTEM
    5.
    发明申请
    EYEPIECES FOR AUGMENTED REALITY DISPLAY SYSTEM 有权

    公开(公告)号：US20220137417A1

    公开(公告)日：2022-05-05

    申请号：US17576488

    申请日：2022-01-14

    Applicant: Magic Leap, Inc.

    Inventor： Samarth Bhargava ,  Victor Kai Liu ,  Kevin Messer

    IPC: G02B27/01 ,  G06T19/00 ,  G02B27/28

    Abstract: An eyepiece waveguide for an augmented reality display system. The eyepiece waveguide can include an input coupling grating (ICG) region. The ICG region can couple an input beam into the substrate of the eyepiece waveguide as a guided beam. A first combined pupil expander-extractor (CPE) grating region can be formed on or in a surface of the substrate. The first CPE grating region can receive the guided beam, create a first plurality of diffracted beams at a plurality of distributed locations, and out-couple a first plurality of output beams. The eyepiece waveguide can also include a second CPE grating region formed on or in the opposite surface of the substrate. The second CPE grating region can receive the guided beam, create a second plurality of diffracted beams at a plurality of distributed locations, and out-couple a second plurality of output beams.

    EYEPIECE FOR HEAD-MOUNTED DISPLAY AND METHOD FOR MAKING THE SAME
    6.
    发明申请
    EYEPIECE FOR HEAD-MOUNTED DISPLAY AND METHOD FOR MAKING THE SAME 有权

    公开(公告)号：US20210405372A1

    公开(公告)日：2021-12-30

    申请号：US17359195

    申请日：2021-06-25

    Applicant: Magic Leap, Inc.

    Inventor： Chieh Chang ,  Christophe Peroz ,  Ryan Jason Ong ,  Ling Li ,  Sharad D. Bhagat ,  Samarth Bhargava

    IPC: G02B27/01 ,  G02B27/00 ,  G02B6/02

    Abstract: A method, includes providing a wafer including a first surface grating extending over a first area of a surface of the wafer and a second surface grating extending over a second area of the surface of the wafer; de-functionalizing a portion of the surface grating in at least one of the first surface grating area and the second surface grating area; and singulating an eyepiece from the wafer, the eyepiece including a portion of the first surface grating area and a portion of the second surface grating area. The first surface grating in the eyepiece corresponds to an input coupling grating for a head-mounted display and the second surface grating corresponds to a pupil expander grating for the head-mounted display.

    BIASED TOTAL THICKNESS VARIATIONS IN WAVEGUIDE DISPLAY SUBSTRATES
    7.
    发明申请
    BIASED TOTAL THICKNESS VARIATIONS IN WAVEGUIDE DISPLAY SUBSTRATES 有权

    公开(公告)号：US20210255387A1

    公开(公告)日：2021-08-19

    申请号：US17308407

    申请日：2021-05-05

    Applicant: Magic Leap, Inc.

    Inventor： Samarth Bhargava ,  Christophe Peroz ,  Victor Kai Liu

    IPC: G02B6/13 ,  G02B6/122 ,  G02B26/08 ,  F21V8/00

    Abstract: A plurality of waveguide display substrates, each waveguide display substrate having a cylindrical portion having a diameter and a planar surface, a curved portion opposite the planar surface defining a nonlinear change in thickness across the substrate and having a maximum height D with respect to the cylindrical portion, and a wedge portion between the cylindrical portion and the curved portion defining a linear change in thickness across the substrate and having a maximum height W with respect to the cylindrical portion. A target maximum height Dt of the curved portion is 10−7 to 10−6 times the diameter, D is between about 70% and about 130% of Dt, and W is less than about 30% of Dt.

    SURFACE RELIEF WAVEGUIDES WITH HIGH REFRACTIVE INDEX RESIST
    9.
    发明申请
    SURFACE RELIEF WAVEGUIDES WITH HIGH REFRACTIVE INDEX RESIST 有权

    公开(公告)号：US20250147222A1

    公开(公告)日：2025-05-08

    申请号：US19018967

    申请日：2025-01-13

    Applicant: Magic Leap, Inc.

    Inventor： Matthew C. Traub ,  Yingnan Liu ,  Vikramjit Singh ,  Frank Y. Xu ,  Robert D. Tekolste ,  Qizhen Xue ,  Samarth Bhargava ,  Victor Kai Liu ,  Brandon Michael-James Born ,  Kevin Messer

    IPC: F21V8/00 ,  G03F7/00

    Abstract: The disclosure describes an improved drop-on-demand, controlled volume technique for dispensing resist onto a substrate, which is then imprinted to create a patterned optical device suitable for use in optical applications such as augmented reality and/or mixed reality systems. The technique enables the dispensation of drops of resist at precise locations on the substrate, with precisely controlled drop volume corresponding to an imprint template having different zones associated with different total resist volumes. Controlled drop size and placement also provides for substantially less variation in residual layer thickness across the surface of the substrate after imprinting, compared to previously available techniques. The technique employs resist having a refractive index closer to that of the substrate index, reducing optical artifacts in the device. To ensure reliable dispensing of the higher index and higher viscosity resist in smaller drop sizes, the dispensing system can continuously circulate the resist.

    Tilting array based display
    10.
    发明授权
    Tilting array based display 有权

    公开(公告)号：US12292571B2

    公开(公告)日：2025-05-06

    申请号：US18483981

    申请日：2023-10-10

    Applicant: Magic Leap, Inc.

    Inventor： Bradley Jay Sissom ,  Kevin Richard Curtis ,  Hui-Chuan Cheng ,  Miller Harry Schuck, III ,  Samarth Bhargava

    IPC: G02B27/01 ,  F21V8/00 ,  G02B5/20 ,  G02B25/00

    Abstract: This disclosure describes a wearable display system configured to project light to the eye(s) of a user to display virtual (e.g., augmented reality) image content in a vision field of the user. The system can include light source(s) that output light, spatial light modulator(s) that modulate the light to provide the virtual image content, and an eyepiece configured to convey the modulated light toward the eye(s) of the user. The eyepiece can include waveguide(s) and a plurality of in-coupling optical elements arranged on or in the waveguide(s) to in-couple the modulated light received from the spatial light modulator(s) into the waveguide(s) to be guided toward the user's eye(s). The spatial light modulator(s) may be movable, and/or may include movable components, to direct different portions of the modulated light toward different ones of the in-coupling optical elements at different times.

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