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公开(公告)号：US20240377645A1
公开(公告)日：2024-11-14
申请号：US18781680
申请日：2024-07-23
Applicant: Magic Leap, Inc.
Inventor： Charles David Melville , Brian T. Schowengerdt , Mathew D. Watson
Abstract: A display assembly suitable for use with a virtual or augmented reality headset is described and includes the following: an input coupling grating; a scanning mirror configured to rotate about two or more different axes of rotation; an optical element; and optical fibers, each of which have a light emitting end disposed between the input coupling grating and the scanning mirror and oriented such that light emitted from the light emitting end is refracted through at least a portion of the optical element, reflected off the scanning mirror, refracted back through the optical element and into the input coupling grating. The scanning mirror can be built upon a MEMS type architecture.
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12.发明公开公开(公告)号：US20240146897A1
公开(公告)日：2024-05-02
申请号：US18383417
申请日：2023-10-24
Applicant: Magic Leap, Inc.
IPC: H04N13/383 , G02B27/00 , G02B27/01 , H04N9/31 , H04N13/344
CPC classification number: H04N13/383 , G02B27/0081 , G02B27/0093 , G02B27/0172 , G02B27/0179 , H04N9/3129 , H04N13/344 , G02C11/10
Abstract: An eye tracking system includes a pair of glasses including two frames, a projector coupled to the pair of glasses and operable to project a beam of light, and an eyepiece mounted in one of the two frames and optically coupled to the projector. The eyepiece is operable to direct at least a portion of the beam of light towards an eye of a user. The eye tracking system also includes one or more optical sensors coupled to at least one of the two frames of the pair of glasses and operable to detect a set of reflected signals off the eye of the user, and a processor coupled to the projector and the one or more optical sensors, wherein the processor is operable to determine an eye orientation based on the set of reflected signals.
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公开(公告)号：US20230393401A1
公开(公告)日：2023-12-07
申请号：US18234806
申请日：2023-08-16
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Brandon Michael-James Born , Samarth Bhargava , Victor Kai Liu
CPC classification number: G02B27/0172 , G02B27/0081 , G02B6/0015 , G02B6/0038 , G02B2027/0178 , G02B2027/0125
Abstract: A method of operating an eyepiece waveguide includes directing light from a projector to impinge on an incoupling grating (ICG). The method also includes diffracting a first fraction of the light from the projector into a first portion of the eyepiece waveguide, propagating the first fraction of the light into a second portion of the eyepiece waveguide, and diffracting the first fraction of the light out of the eyepiece waveguide. The method further includes diffracting a second fraction of the light from the projector into the second portion of the eyepiece waveguide, propagating the second fraction of the light into the first portion of the eyepiece waveguide, and diffracting the second fraction out of the eyepiece waveguide.
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公开(公告)号：US11656677B2
公开(公告)日：2023-05-23
申请号：US17485941
申请日：2021-09-27
Applicant: MAGIC LEAP, INC.
Inventor： Rony Abovitz , Brian T. Schowengerdt , Mathew D. Watson
IPC: G01B11/30 , G06F3/01 , G06F3/00 , G06F3/04883 , G02B27/42 , G02B6/10 , G06F16/783 , G06F3/04842 , A61B34/10 , A63F13/428 , A63F13/213 , G16H40/67 , H04B10/25 , G06V10/75 , G06V20/10 , G06V20/20 , G06V20/40 , G06V20/64 , G06V40/20 , G06T19/00 , G06K9/62 , G02B27/01 , G02B6/34 , G06Q30/0601 , G06F3/03 , G06F3/0487 , G06F3/04815 , G06F3/04845 , G06F3/0485 , A63F13/00 , G06T7/60 , G16H40/20 , G16H40/00 , G06V40/10
CPC classification number: G01B11/303 , A61B34/10 , A63F13/00 , A63F13/213 , A63F13/428 , G02B6/10 , G02B6/34 , G02B27/0101 , G02B27/017 , G02B27/0172 , G02B27/42 , G02B27/4205 , G02B27/4227 , G06F3/005 , G06F3/011 , G06F3/013 , G06F3/017 , G06F3/0304 , G06F3/0485 , G06F3/0487 , G06F3/04815 , G06F3/04842 , G06F3/04845 , G06F3/04883 , G06F16/7837 , G06K9/6201 , G06K9/6215 , G06Q30/0643 , G06T7/60 , G06T19/006 , G06V10/758 , G06V20/10 , G06V20/20 , G06V20/40 , G06V20/653 , G06V40/28 , G16H40/00 , G16H40/20 , G16H40/67 , H04B10/25891 , A61B2034/101 , G02B2027/014 , G02B2027/0105 , G02B2027/0127 , G02B2027/0178 , G02B2027/0185 , G02B2027/0187 , G06T2200/04 , G06T2200/24 , G06T2207/10004 , G06T2207/30196 , G06T2210/41 , G06T2219/024 , G06V40/113 , G02B27/017 , G02B2027/0178 , G06F16/7837 , G06F3/04815 , G06V20/10 , G06V20/20 , G06T19/006 , G06T7/60 , G02B27/0172 , G02B27/0179 , G06T2207/10148 , A61B3/14 , A61B3/113 , A61B3/165 , A61B5/369 , A61B5/14532 , A61B5/14555 , A61B5/6803 , A61B3/12 , A61B3/08 , A61B3/0008 , A61B3/1216 , A61B3/1015 , A61B3/1035 , A61B3/085 , A61B3/028 , A61B3/066 , A61B3/102 , A61B3/022 , A61B3/13 , A61B3/063 , A61B3/024 , A61B3/10 , A61B5/0059 , A61B5/398 , A61B5/1455 , A61B5/01 , A61B2562/0247 , A61B2562/0204 , A61B2562/0219 , A61B5/0066 , A61B5/0077 , G02B2027/014 , G02B2027/0138 , G02B2027/0185 , G06T2207/10024 , G06T2207/10152 , G06T2207/30041 , G02B27/017 , G02B2027/0178 , G06F16/7837 , G06F3/04815 , G06V10/20 , G06V10/40 , G06T19/006 , G06T7/60
Abstract: A waveguide apparatus includes a planar waveguide and at least one optical diffraction element (DOE) that provides a plurality of optical paths between an exterior and interior of the planar waveguide. A phase profile of the DOE may combine a linear diffraction grating with a circular lens, to shape a wave front and produce beams with desired focus. Waveguide apparati may be assembled to create multiple focal planes. The DOE may have a low diffraction efficiency, and planar waveguides may be transparent when viewed normally, allowing passage of light from an ambient environment (e.g., real world) useful in AR systems. Light may be returned for temporally sequentially passes through the planar waveguide. The DOE(s) may be fixed or may have dynamically adjustable characteristics. An optical coupler system may couple images to the waveguide apparatus from a projector, for instance a biaxially scanning cantilevered optical fiber tip.
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公开(公告)号：US20230096079A1
公开(公告)日：2023-03-30
申请号：US18070144
申请日：2022-11-28
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Brandon Michael-James Born , Samarth Bhargava , Victor Kai Liu
Abstract: A method of operating an eyepiece waveguide having a first region and a second region includes directing light from a first projector to impinge on a first incoupling grating (ICG) and light from a second projector to impinge on a second ICG. Light from the first projector is diffracted into a first portion and a second portion of the first region of the eyepiece waveguide and out of the eyepiece waveguide. Light from the second projector is diffracted into a first portion and a second portion of the second region of the eyepiece waveguide and out of the eyepiece waveguide.
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Patent Agency Ranking
公开(公告)号：US20210364803A1
公开(公告)日：2021-11-25
申请号：US17327570
申请日：2021-05-21
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , Brandon Michael-James Born , Samarth Bhargava , Victor Kai Liu
Abstract: An eyepiece waveguide for an augmented reality display system includes a substrate having a first surface and a second surface and a diffractive input coupling element formed on or in the first surface or the second surface of the substrate. The diffractive input coupling element is configured to receive an input beam of light and to couple the input beam into the substrate as a guided beam. The eyepiece waveguide also includes a diffractive combined pupil expander-extractor (CPE) element formed on or in the first surface or the second surface of the substrate. The diffractive CPE element includes a first portion and a second portion divided by an axis. A first set of diffractive optical elements is disposed in the first portion and oriented at a positive angle with respect to the axis and a second set of diffractive optical elements is disposed in the second portion and oriented at a negative angle with respect to the axis.
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公开(公告)号：US20210356737A1
公开(公告)日：2021-11-18
申请号：US17327503
申请日：2021-05-21
Applicant: Magic Leap, Inc.
Abstract: A method of fabricating a multi-element fiber scanner includes providing a fiber optic cable having a cladding region and a fiber core and focusing a laser beam at a series of predetermined locations inside the cladding region of the fiber optic cable. The method also includes creating a plurality of damage sites at the predetermined locations, exposing the fiber optic cable to an etchant solution, and preferentially etching the plurality of damage sites to form a base having a base plane and a longitudinal axis orthogonal to the base plane, a retention collar disposed a predetermined distance along the longitudinal axis from the base, a first fiber link including the fiber core, passing through the base plane, and joined to the retention collar, and a plurality of additional links joined to the base, extending from the base to the retention collar, and joined to the retention collar.
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公开(公告)号：US11060858B2
公开(公告)日：2021-07-13
申请号：US16410617
申请日：2019-05-13
Applicant: MAGIC LEAP, INC.
Inventor： Rony Abovitz , Brian T. Schowengerdt , Mathew D. Watson
IPC: G01B11/30 , G06F3/01 , G06F3/00 , G06F3/0488 , G02B27/42 , G02B6/10 , G06F16/783 , G06K9/00 , G06F3/0484 , A61B34/10 , A63F13/428 , A63F13/213 , G16H40/67 , H04B10/25 , G06T19/00 , G06K9/62 , G02B27/01 , G02B6/34 , G06Q30/06 , G06F3/03 , G06F3/0487 , G06F3/0481 , G06F3/0485 , A63F13/00 , G06T7/60 , G16H40/20 , G16H40/00
Abstract: A waveguide apparatus includes a planar waveguide and at least one optical diffraction element (DOE) that provides a plurality of optical paths between an exterior and interior of the planar waveguide. A phase profile of the DOE may combine a linear diffraction grating with a circular lens, to shape a wave front and produce beams with desired focus. Waveguide apparati may be assembled to create multiple focal planes. The DOE may have a low diffraction efficiency, and planar waveguides may be transparent when viewed normally, allowing passage of light from an ambient environment (e.g., real world) useful in AR systems. Light may be returned for temporally sequentially passes through the planar waveguide. The DOE(s) may be fixed or may have dynamically adjustable characteristics. An optical coupler system may couple images to the waveguide apparatus from a projector, for instance a biaxially scanning cantilevered optical fiber tip.
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公开(公告)号：US10755481B2
公开(公告)日：2020-08-25
申请号：US15980947
申请日：2018-05-16
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson , David Tinch , Ivan Li Chuen Yeoh , John Graham Macnamara , Lionel Ernest Edwin , Michael Anthony Klug , William Hudson Welch
IPC: G06T19/00 , G02B27/09 , G02B27/10 , G02B27/30 , G02B5/18 , G02B27/42 , G02B26/08 , G02B27/01 , G02B6/12
Abstract: A virtual image generation system comprises a planar optical waveguide having opposing first and second faces, an in-coupling (IC) element configured for optically coupling a collimated light beam from an image projection assembly into the planar optical waveguide as an in-coupled light beam, a first orthogonal pupil expansion (OPE) element associated with the first face of the planar optical waveguide for splitting the in-coupled light beam into a first set of orthogonal light beamlets, a second orthogonal pupil expansion (OPE) element associated with the second face of the planar optical waveguide for splitting the in-coupled light beam into a second set of orthogonal light beamlets, and an exit pupil expansion (EPE) element associated with the planar optical waveguide for splitting the first and second sets of orthogonal light beamlets into an array of out-coupled light beamlets that exit the planar optical waveguide.
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公开(公告)号：US10732404B2
公开(公告)日：2020-08-04
申请号：US16542142
申请日：2019-08-15
Applicant: Magic Leap, Inc.
Abstract: A multi-element fiber scanner for scanning electromagnetic imaging radiation includes a base having a base plane and a longitudinal axis orthogonal to the base plane and a fiber link passing through the base in a direction parallel to the longitudinal axis. The fiber link is operatively coupled to at least one electromagnetic radiation source. The multi-element fiber scanner also includes a retention collar disposed a predetermined distance along the longitudinal axis from the base and a first set and a second set of piezoelectric tubes. First and second piezoelectric tubes of the first set are joined to the base and extends from the base and first and second piezoelectric tubes of the second set are joined to the retention collar and extend from the retention collar.
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