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    DYNAMIC INCOUPLING GRATINGS IN IMAGING SYSTEMS
    14.
    发明申请
    DYNAMIC INCOUPLING GRATINGS IN IMAGING SYSTEMS 有权

    公开(公告)号：US20210255471A1

    公开(公告)日：2021-08-19

    申请号：US17184039

    申请日：2021-02-24

    Applicant: Magic Leap, Inc.

    Inventor： Jahja I. Trisnadi ,  Pierre St. Hilaire ,  Clinton Carlisle

    IPC: G02B27/42 ,  G02B27/01 ,  G02B27/00 ,  H04N9/31

    Abstract: An eyepiece for projecting an image light field to an eye of a viewer for forming an image of virtual content includes a waveguide, a light source configured to deliver a light beam to be incident on the waveguide, a controller coupled to the light source and configured to modulate an intensity of the light beam in a plurality of time slots, a dynamic input coupling grating (ICG) configured to, for each time slot, diffract a respective portion of the light beam into the waveguide at a respective total internal reflection (TIR) angle corresponding to a respective field angle, and an outcoupling diffractive optical element (DOE) configured to diffract each respective portion of the light beam out of the waveguide toward the eye at the respective field angle, thereby projecting the light field to the eye of the viewer.

    METHODS, DEVICES, AND SYSTEMS FOR ILLUMINATING SPATIAL LIGHT MODULATORS
    16.
    发明申请
    METHODS, DEVICES, AND SYSTEMS FOR ILLUMINATING SPATIAL LIGHT MODULATORS 审中-公开

    公开(公告)号：US20190018245A1

    公开(公告)日：2019-01-17

    申请号：US15927997

    申请日：2018-03-21

    Applicant: Magic Leap, Inc.

    Inventor： Hui-Chuan Cheng ,  Hyunsun Chung ,  Jahja I. Trisnadi ,  Clinton Carlisle ,  Chulwoo Oh ,  Kevin Richard Curtis

    IPC: G02B27/01 ,  G02B5/30 ,  F21V8/00 ,  G02F1/137

    Abstract: An optical device comprising may include a light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The light coupled into the light turning element may be reflected by the end reflector and/or reflected from the second surface towards the first surface.

    Ghost image mitigation in see-through displays with pixel arrays
    17.
    发明授权
    Ghost image mitigation in see-through displays with pixel arrays 有权

    公开(公告)号：US12276798B2

    公开(公告)日：2025-04-15

    申请号：US18296238

    申请日：2023-04-05

    Applicant: Magic Leap, Inc.

    Inventor： David Manly ,  Vaibhav Mathur ,  Clinton Carlisle ,  Jonathan Alexander Rolon ,  Chulwoo Oh

    IPC: G02F1/1335 ,  G02B27/01 ,  G02B27/28 ,  G02F1/13363 ,  G02F1/139

    Abstract: A head-mounted apparatus include an eyepiece that include a variable dimming assembly and a frame mounting the eyepiece so that a user side of the eyepiece faces a towards a user and a world side of the eyepiece opposite the first side faces away from the user. The dynamic dimming assembly selectively modulates an intensity of light transmitted parallel to an optical axis from the world side to the user side during operation. The dynamic dimming assembly includes a variable birefringence cell having multiple pixels each having an independently variable birefringence, a first linear polarizer arranged on the user side of the variable birefringence cell, the first linear polarizer being configured to transmit light propagating parallel to the optical axis linearly polarized along a pass axis of the first linear polarizer orthogonal to the optical axis, a quarter wave plate arranged between the variable birefringence cell and the first linear polarizer, a fast axis of the quarter wave plate being arranged relative to the pass axis of the first linear polarizer to transform linearly polarized light transmitted by the first linear polarizer into circularly polarized light, and a second linear polarizer on the world side of the variable birefringence cell.

    DYNAMIC INCOUPLING GRATINGS IN IMAGING SYSTEMS
    18.
    发明申请
    DYNAMIC INCOUPLING GRATINGS IN IMAGING SYSTEMS 有权

    公开(公告)号：US20250013065A1

    公开(公告)日：2025-01-09

    申请号：US18886763

    申请日：2024-09-16

    Applicant: Magic Leap, Inc.

    Inventor： Jahja I. Trisnadi ,  Pierre St. Hilaire ,  Clinton Carlisle

    IPC: G02B27/42 ,  G02B27/00 ,  G02B27/01 ,  H04N9/31

    Abstract: An eyepiece for projecting an image light field to an eye of a viewer for forming an image of virtual content includes a waveguide, a light source configured to deliver a light beam to be incident on the waveguide, a controller coupled to the light source and configured to modulate an intensity of the light beam in a plurality of time slots, a dynamic input coupling grating (ICG) configured to, for each time slot, diffract a respective portion of the light beam into the waveguide at a respective total internal reflection (TIR) angle corresponding to a respective field angle, and an outcoupling diffractive optical element (DOE) configured to diffract each respective portion of the light beam out of the waveguide toward the eye at the respective field angle, thereby projecting the light field to the eye of the viewer.

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