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    Depth based foveated rendering for display systems
    54.
    发明授权
    Depth based foveated rendering for display systems 有权

    公开(公告)号：US11238836B2

    公开(公告)日：2022-02-01

    申请号：US16355603

    申请日：2019-03-15

    Applicant: Magic Leap, Inc.

    Inventor： Vaibhav Mathur ,  Lionel Ernest Edwin ,  Xiaoyang Zhang ,  Bjorn Nicolaas Servatius Vlaskamp

    IPC: G09G5/391 ,  G06F3/01 ,  G06T5/00

    Abstract: Methods and systems for depth-based foveated rendering in the display system are disclosed. The display system may be an augmented reality display system configured to provide virtual content on a plurality of depth planes using different wavefront divergence. Some embodiments include determining a fixation point of a user's eyes. Location information associated with a first virtual object to be presented to the user via a display device is obtained. A resolution-modifying parameter of the first virtual object is obtained. A particular resolution at which to render the first virtual object is identified based on the location information and the resolution-modifying parameter of the first virtual object. The particular resolution is based on a resolution distribution specifying resolutions for corresponding distances from the fixation point. The first virtual object rendered at the identified resolution is presented to the user via the display system.

    SPATIALLY-RESOLVED DYNAMIC DIMMING FOR AUGMENTED REALITY DEVICE
    56.
    发明申请
    SPATIALLY-RESOLVED DYNAMIC DIMMING FOR AUGMENTED REALITY DEVICE 有权

    公开(公告)号：US20210350614A1

    公开(公告)日：2021-11-11

    申请号：US17330146

    申请日：2021-05-25

    Applicant: Magic Leap, Inc.

    Inventor： Vaibhav Mathur ,  David Manly ,  Jahja I. Trisnadi ,  Clinton Carlisle ,  Lionel Ernest Edwin ,  Michael Anthony Klug

    IPC: G06T15/50 ,  G06F3/01 ,  G06T15/80 ,  G02B27/01

    Abstract: Techniques are described for operating an optical system. In some embodiments, light associated with a world object is received at the optical system. Virtual image light is projected onto an eyepiece of the optical system. A portion of a system field of view of the optical system to be at least partially dimmed is determined based on information detected by the optical system. A plurality of spatially-resolved dimming values for the portion of the system field of view may be determined based on the detected information. The detected information may include light information, gaze information, and/or image information. A dimmer of the optical system may be adjusted to reduce an intensity of light associated with the world object in the portion of the system field of view according to the plurality of dimming values.

    Ghost image mitigation in see-through displays with pixel arrays
    57.
    发明授权
    Ghost image mitigation in see-through displays with pixel arrays 有权

    公开(公告)号：US11169380B2

    公开(公告)日：2021-11-09

    申请号：US16994509

    申请日：2020-08-14

    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.

    ATTENUATION OF LIGHT TRANSMISSION ARTIFACTS IN WEARABLE DISPLAYS
    58.
    发明申请
    ATTENUATION OF LIGHT TRANSMISSION ARTIFACTS IN WEARABLE DISPLAYS 有权

    公开(公告)号：US20210116712A1

    公开(公告)日：2021-04-22

    申请号：US17072510

    申请日：2020-10-16

    Applicant: Magic Leap, Inc.

    Inventor： David Manly ,  Kevin Messer ,  Vaibhav Mathur ,  Clinton Carlisle

    IPC: G02B27/28 ,  G02B27/01 ,  G02F1/137 ,  G02B5/30 ,  G02F1/1335

    Abstract: A wearable display system includes an eyepiece stack having a world side and a user side opposite the world side, wherein during use a user positioned on the user side views displayed images delivered by the system via the eyepiece stack which augment the user's view of the user's environment. The wearable display system also includes an angularly selective film arranged on the world side of the of the eyepiece stack. The angularly selective film includes a polarization adjusting film arranged between pair of linear polarizers. The linear polarizers and polarization adjusting film significantly reduces transmission of visible light incident on the angularly selective film at large angles of incidence without significantly reducing transmission of light incident on the angularly selective film at small angles of incidence.

    Mechanical joint for use in fiber optic imaging systems
    59.
    发明授权
    Mechanical joint for use in fiber optic imaging systems 有权

    公开(公告)号：US10732355B2

    公开(公告)日：2020-08-04

    申请号：US16596263

    申请日：2019-10-08

    Applicant: Magic Leap, Inc.

    Inventor： Xiaoyang Zhang ,  Vaibhav Mathur ,  Michael Robert Johnson ,  Timothy Mark Dalrymple ,  Andrew C. Duenner ,  Albert Daniel Carlomagno

    IPC: G02B6/36 ,  G02B26/10 ,  G02B6/26

    Abstract: An example apparatus includes an optical fiber, an actuator, and a joint mechanically coupling the actuator to the optical fiber. The joint includes a neck extending along an axis. The optical fiber is threaded through an aperture extending along the axis through the neck. The optical fiber is attached to the joint at a surface of the neck facing the axis. The joint also includes a collar extending along the axis. The actuator is mechanically attached to the joint at an inner surface of the collar facing the axis. The joint also includes a flexural element extending radially from the neck to the collar. During operation, the joint couples a force from the actuator to the optical fiber to vary an orientation of a portion of the optical fiber extending from the neck with respect to the axis.

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