公开(公告)号：US20240418997A1

公开(公告)日：2024-12-19

申请号：US18814248

申请日：2024-08-23

Applicant: Magic Leap, Inc.

Inventor： Robert D. TEKOLSTE ,  Michael A. KLUG ,  Paul M. GRECO ,  Brian T. SCHOWENGERDT

IPC: G02B27/01 ,  F21V8/00 ,  G02B5/18 ,  G02B27/42 ,  G06T19/00

Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value.

公开(公告)号：US20240315553A1

公开(公告)日：2024-09-26

申请号：US18665416

申请日：2024-05-15

Applicant: UNIVERSITY OF WASHINGTON ,  MAGIC LEAP, INC.

Inventor： Eric J. SEIBEL ,  Chen GONG ,  Steven L. BRUNTON ,  Nils Benjamin ERICHSON ,  Laura TRUTOIU ,  Brian T. SCHOWENGERDT

IPC: A61B3/12 ,  A61B3/00 ,  A61B3/14 ,  G06T3/4038 ,  G06V40/18

CPC classification number: A61B3/12 ,  A61B3/0025 ,  A61B3/0058 ,  A61B3/14 ,  G06T3/4038 ,  G06V40/193 ,  G06V40/197

Abstract: A retina image template matching method is based on the registration and comparison between the images captured with portable low-cost fundus cameras (e.g., a consumer grade camera typically incorporated into a smartphone or tablet computer) and a baseline image. The method solves the challenges posed by registering small and low-quality retinal template images captured with such cameras. Our method combines dimension reduction methods with a mutual information (MI) based image registration technique. In particular, principle components analysis (PCA) and optionally block PCA are used as a dimension reduction method to localize the template image coarsely to the baseline image, then the resulting displacement parameters are used to initialize the MI metric optimization for registration of the template image with the closest region of the baseline image.

公开(公告)号：US20240184359A1

公开(公告)日：2024-06-06

申请号：US18545172

申请日：2023-12-19

Applicant: UNIVERSITY OF WASHINGTON ,  MAGIC LEAP, INC.

Inventor： Eric J. SEIBEL ,  Steven L. BRUNTON ,  Chen GONG ,  Brian T. SCHOWENGERDT

IPC: G06F3/01 ,  G02B27/01 ,  G06N3/04 ,  G06N3/08 ,  G06T7/246 ,  G06T7/277 ,  G06T7/33 ,  G06T7/73

CPC classification number: G06F3/013 ,  G02B27/0172 ,  G02B27/0179 ,  G06N3/04 ,  G06N3/08 ,  G06T7/248 ,  G06T7/277 ,  G06T7/33 ,  G06T7/74 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0187 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/30201

Abstract: Techniques for tracking eye movement in an augmented reality system identify a plurality of base images of an object or a portion thereof. A search image may be generated based at least in part upon at least some of the plurality of base images. A deep learning result may be generated at least by performing a deep learning process on a base image using a neural network in a deep learning mode. A captured image may be localized at least by performing an image registration process on the captured image and the search image using a Kalman filter model and the deep learning result.

公开(公告)号：US20240177429A1

公开(公告)日：2024-05-30

申请号：US18431758

申请日：2024-02-02

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 ,  G02B5/18 ,  G02B26/08 ,  G02B27/01 ,  G02B27/09 ,  G02B27/10 ,  G02B27/30 ,  G02B27/42 ,  G02B6/12

CPC classification number: G06T19/006 ,  G02B5/18 ,  G02B26/08 ,  G02B27/0172 ,  G02B27/0944 ,  G02B27/0955 ,  G02B27/0972 ,  G02B27/10 ,  G02B27/106 ,  G02B27/30 ,  G02B27/42 ,  G02B2006/1215 ,  G02B2027/0123 ,  G02B2027/0178

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.

公开(公告)号：US20200312040A1

公开(公告)日：2020-10-01

申请号：US16903279

申请日：2020-06-16

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 ,  G02B27/01 ,  G02B26/08

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.

公开(公告)号：US20200026085A1

公开(公告)日：2020-01-23

申请号：US16573120

申请日：2019-09-17

Applicant: Magic Leap, Inc.

Inventor： Robert D. TEKOLSTE ,  Michael A. KLUG ,  Paul M. GRECO ,  Brian T. SCHOWENGERDT

IPC: G02B27/01 ,  G02B5/18 ,  F21V8/00 ,  G02B27/42 ,  G06T19/00

Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value.

公开(公告)号：US20250053018A1

公开(公告)日：2025-02-13

申请号：US18931455

申请日：2024-10-30

Applicant: Magic Leap, Inc.

Inventor： Brian T. SCHOWENGERDT ,  Hong HUA ,  Hui-Chuan CHENG ,  Christophe PEROZ

IPC: G02B27/01 ,  F21V8/00 ,  G02B5/18 ,  G06T5/70 ,  G06T19/00 ,  G06V40/18 ,  G06V40/19

Abstract: Images perceived to be substantially full color or multi-colored may be formed using component color images that are distributed in unequal numbers across a plurality of depth planes. The distribution of component color images across depth planes may vary based on color. In some embodiments, a display system includes a stack of waveguides that each output light of a particular color, with some colors having fewer numbers of associated waveguides than other colors. The waveguide stack may include multiple pluralities (e.g., first and second pluralities) of waveguides, each configured to produce an image by outputting light corresponding to a particular color. The total number of waveguides in the second plurality of waveguides may be less than the total number of waveguides in the first plurality of waveguides.

公开(公告)号：US20240280821A1

公开(公告)日：2024-08-22

申请号：US18648347

申请日：2024-04-27

Applicant: Magic Leap, Inc.

Inventor： Brian T. SCHOWENGERDT ,  Hong HUA ,  Hui-Chuan CHENG ,  Christophe PEROZ

IPC: G02B27/01 ,  G02B5/18 ,  G06T5/70 ,  G06T19/00 ,  G06V40/18 ,  G06V40/19

CPC classification number: G02B27/0172 ,  G02B5/18 ,  G02B6/0035 ,  G02B6/0076 ,  G06T5/70 ,  G06T19/006 ,  G06V40/19 ,  G06V40/193 ,  G02B2027/0112 ,  G02B2027/0125 ,  G02B2027/0127 ,  G02B2027/0132 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0178

Abstract: Images perceived to be substantially full color or multi-colored may be formed using component color images that are distributed in unequal numbers across a plurality of depth planes. The distribution of component color images across depth planes may vary based on color. In some embodiments, a display system includes a stack of waveguides that each output light of a particular color, with some colors having fewer numbers of associated waveguides than other colors. The waveguide stack may include multiple pluralities (e.g., first and second pluralities) of waveguides, each configured to produce an image by outputting light corresponding to a particular color. The total number of waveguides in the second plurality of waveguides may be less than the total number of waveguides in the first plurality of waveguides, and may be more than the total number of waveguides in a third plurality of waveguides, in embodiments that utilize three component colors.

公开(公告)号：US20230324590A1

公开(公告)日：2023-10-12

申请号：US18335082

申请日：2023-06-14

Applicant: Magic Leap, Inc.

Inventor： Robert D. TEKOLSTE ,  Michael Anthony KLUG ,  Paul M. GRECO ,  Brian T. SCHOWENGERDT

IPC: G02B5/18 ,  B29D11/00 ,  G02B27/01

CPC classification number: G02B5/1852 ,  B29D11/00355 ,  B29D11/00432 ,  G02B5/1842 ,  G02B27/0172 ,  B29D11/00865 ,  B29D11/00682 ,  G02B5/1823 ,  B29D11/0073 ,  G02B2027/0112 ,  G02B2027/0125

Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.

公开(公告)号：US20220244439A1

公开(公告)日：2022-08-04

申请号：US17660526

申请日：2022-04-25

Applicant: Magic Leap, Inc.

Inventor： Robert D. TEKOLSTE ,  Michael Anthony KLUG ,  Paul M. GRECO ,  Brian T. SCHOWENGERDT

IPC: G02B5/18 ,  B29D11/00 ,  G02B27/01

Abstract: Disclosed is an improved diffraction structure for 3D display systems. The improved diffraction structure includes an intermediate layer that resides between a waveguide substrate and a top grating surface. The top grating surface comprises a first material that corresponds to a first refractive index value, the underlayer comprises a second material that corresponds to a second refractive index value, and the substrate comprises a third material that corresponds to a third refractive index value. According to additional embodiments, improved approaches are provided to implement deposition of imprint materials onto a substrate, which allow for very precise distribution and deposition of different imprint patterns onto any number of substrate surfaces.