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    Low-profile beam splitter
    31.
    发明授权
    Low-profile beam splitter 有权

    公开(公告)号：US10901311B2

    公开(公告)日：2021-01-26

    申请号：US16737728

    申请日：2020-01-08

    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 ,  G02B27/01 ,  G02B26/10

    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 may 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 second surface, is reflected by the second surface toward the third surface via total internal reflection, and is reflected by the third surface in a direction substantially parallel to the first surface.

    AUGMENTED REALITY DISPLAY HAVING MULTI-ELEMENT ADAPTIVE LENS FOR CHANGING DEPTH PLANES
    32.
    发明申请
    AUGMENTED REALITY DISPLAY HAVING MULTI-ELEMENT ADAPTIVE LENS FOR CHANGING DEPTH PLANES 审中-公开

    公开(公告)号：US20180356639A1

    公开(公告)日：2018-12-13

    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: G02B27/01 ,  G02F1/29 ,  G02F1/13 ,  G02F1/01

    CPC classification number: G02B27/0172 ,  G02F1/0136 ,  G02F1/1326 ,  G02F1/29 ,  G02F2001/294

    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.

    Dynamic incoupling gratings in imaging systems
    36.
    发明授权
    Dynamic incoupling gratings in imaging systems 有权

    公开(公告)号：US12124052B2

    公开(公告)日：2024-10-22

    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 ,  G02B27/00 ,  G02B27/01 ,  H04N9/31

    CPC classification number: G02B27/4205 ,  G02B27/0081 ,  G02B27/0172 ,  H04N9/3155 ,  G02B2027/0123

    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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