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    DYNAMIC INCOUPLING GRATINGS IN IMAGING SYSTEMS
    1.
    发明公开
    DYNAMIC INCOUPLING GRATINGS IN IMAGING SYSTEMS 审中-公开

    公开(公告)号：EP4215254A1

    公开(公告)日：2023-07-26

    申请号：EP23160139.4

    申请日：2019-08-28

    申请人： Magic Leap, Inc.

    发明人： TRISNADI, Jahja I. ,  ST. HILAIRE, Pierre ,  CARLISLE, Clinton

    IPC分类号： A63F13/00 ,  A63F13/20 ,  A63F13/21 ,  G02B27/00 ,  G02B27/01 ,  G06F3/00 ,  G06F3/01

    摘要： A method of projecting an image light field to an eye of a viewer, the method comprising: modulating, by a controller, an intensity of a light beam in a sequence of time slots, each time slot of the sequence of time slots corresponding to a respective field angle of the image light field, the intensity of the light beam in each time slot of the sequence of time slots corresponding to an intensity of the image light field at the respective field angle; propagating the light beam onto a dynamic input coupling grating (ICG); controlling the dynamic ICG, by the controller, to diffract a respective portion of the light beam into a waveguide at a respective angle corresponding to the respective field angle for each time slot of the sequence of time slots; and directing each respective portion of the light beam out of the waveguide toward the eye at the respective field angle, thereby projecting the image light field to the eye of the viewer

    GHOST IMAGE MITIGATION IN SEE-THROUGH DISPLAYS WITH PIXEL ARRAYS
    5.
    发明公开
    GHOST IMAGE MITIGATION IN SEE-THROUGH DISPLAYS WITH PIXEL ARRAYS 审中-实审

    公开(公告)号：EP4414772A2

    公开(公告)日：2024-08-14

    申请号：EP24182500.9

    申请日：2020-08-14

    申请人： MAGIC LEAP, INC.

    发明人： MANLY, David ,  MATHUR, Vaibhav ,  CARLISLE, Clinton ,  ROLON, Jonathan Alexander ,  OH, Chulwoo

    IPC分类号： G02B27/28

    CPC分类号： G02B27/0018 ,  G02B27/0172 ,  G02B2027/01220130101 ,  G02B27/281 ,  G02F2203/4820130101 ,  G02F2201/5820130101 ,  G02F2203/1220130101 ,  G02F1/1362 ,  G02C7/086 ,  G02C11/10

    摘要： 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.