公开(公告)号：US20240280827A1

公开(公告)日：2024-08-22

申请号：US18650003

申请日：2024-04-29

申请人： Magic Leap, Inc.

发明人： Ivan Li Chuen Yeoh ,  Lionel Ernest Edwin ,  Brian T. Schowengerdt ,  Michael Anthony Klug ,  Jahja I. Trisnadi

IPC分类号： G02B27/01 ,  G02B3/14 ,  G02B26/00 ,  G02B27/00 ,  G06F3/01 ,  G06T5/80 ,  G06T19/00

CPC分类号： G02B27/0179 ,  G02B3/14 ,  G02B6/005 ,  G02B26/004 ,  G02B27/0172 ,  G06F3/011 ,  G06F3/013 ,  G06T5/80 ,  G06T19/006 ,  G02B6/0038 ,  G02B6/0068 ,  G02B27/0093 ,  G02B2027/0123 ,  G02B2027/0127 ,  G02B2027/0185 ,  G02B2027/0187

摘要： An augmented reality (AR) device is described with a display system configured to adjust an apparent distance between a user of the AR device and virtual content presented by the AR device. The AR device includes a first tunable lens that change shape in order to affect the position of the virtual content. Distortion of real-world content on account of the changes made to the first tunable lens is prevented by a second tunable lens that changes shape to stay substantially complementary to the optical configuration of the first tunable lens. In this way, the virtual content can be positioned at almost any distance relative to the user without degrading the view of the outside world or adding extensive bulk to the AR device. The augmented reality device can also include tunable lenses for expanding a field of view of the augmented reality device.

公开(公告)号：US12029487B2

公开(公告)日：2024-07-09

申请号：US17295586

申请日：2019-11-20

申请人： UNIVERSITY OF WASHINGTON ,  MAGIC LEAP, INC.

发明人： Eric J. Seibel ,  Chen Gong ,  Steven L Brunton ,  Nils Benjamin Erichson ,  Laura Trutoiu ,  Brian T. Schowengerdt

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

CPC分类号： A61B3/12 ,  A61B3/0025 ,  A61B3/0058 ,  A61B3/14 ,  G06T3/4038 ,  G06V40/193 ,  G06V40/197

摘要： 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：US20240151975A1

公开(公告)日：2024-05-09

申请号：US18410899

申请日：2024-01-11

申请人： Magic Leap, Inc.

发明人： Brian T. Schowengerdt ,  Lionel Ernest Edwin ,  Ivan Yeoh ,  Aaron Mark Schuelke ,  William Hudson Welch ,  John Graham Macnamara

IPC分类号： G02B27/01 ,  F21V8/00 ,  G02B26/10 ,  G06T15/00 ,  G06T19/00

CPC分类号： G02B27/0172 ,  G02B6/0015 ,  G02B6/0026 ,  G02B6/0028 ,  G02B6/003 ,  G02B6/0031 ,  G02B6/0076 ,  G02B26/103 ,  G06T15/005 ,  G06T19/006 ,  G02B2027/0125 ,  G02B2027/0178 ,  G06F3/012

摘要： A display subsystem for a virtual image generation system for use by an end user comprises a planar waveguide apparatus, an optical fiber, at least one light source configured for emitting light from a distal end of the optical fiber, and a collimation element mounted to a distal end of the optical fiber for collimating light from the optical fiber. The virtual image generation system further comprises a mechanical drive assembly to which the optical fiber is mounted to the drive assembly. The mechanical drive assembly is configured for displacing the distal end of the optical fiber, along with the collimation element, in accordance with a scan pattern. The virtual image generation system further comprises an optical waveguide input apparatus configured for directing the collimated light from the collimation element down the planar waveguide apparatus, such that the planar waveguide apparatus displays image frames to the end user.

公开(公告)号：US11935206B2

公开(公告)日：2024-03-19

申请号：US18296141

申请日：2023-04-05

申请人： Magic Leap, Inc.

发明人： 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分类号： G06T19/00 ,  G02B5/18 ,  G02B26/08 ,  G02B27/01 ,  G02B27/09 ,  G02B27/10 ,  G02B27/30 ,  G02B27/42 ,  G02B6/12

CPC分类号： 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

摘要： 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：US20230384499A1

公开(公告)日：2023-11-30

申请号：US18449268

申请日：2023-08-14

申请人： Magic Leap, Inc.

发明人： Michael Anthony Klug ,  Brian T. Schowengerdt ,  Michael Nevin Miller ,  Vikramjit Singh ,  Christophe Peroz ,  Pierre St. Hilaire ,  Jie Sun

IPC分类号： G02B5/30 ,  G02B27/01 ,  F21V8/00 ,  G02B5/18 ,  G02B26/10 ,  G02B27/42 ,  G02B27/00 ,  G02B27/10 ,  G02F1/13 ,  G02B1/00 ,  G02B27/28

CPC分类号： G02B5/3016 ,  G02B27/0172 ,  G02B6/004 ,  G02B5/1809 ,  G02B5/1833 ,  G02B26/103 ,  G02B27/4272 ,  G02B27/0081 ,  G02B27/1006 ,  G02F1/1326 ,  G02B1/002 ,  G02B6/0016 ,  G02B6/0076 ,  G02B27/283 ,  G02F1/1303 ,  G02B2027/0125 ,  G02B2027/0185 ,  G02B2027/0112

摘要： Architectures are provided for selectively incoupling one or more streams of light from a multiplexed light stream into a waveguide. The multiplexed light stream can have light with different characteristics (e.g., different wavelengths and/or different polarizations). The waveguide can comprise in-coupling elements that can selectively couple one or more streams of light from the multiplexed light stream into the waveguide while transmitting one or more other streams of light from the multiplexed light stream.

公开(公告)号：US20230280594A1

公开(公告)日：2023-09-07

申请号：US18196349

申请日：2023-05-11

申请人： Magic Leap, Inc.

发明人： Lionel Ernest Edwin ,  Ivan Li Chuen Yeoh ,  Brian T. Schowengerdt ,  Kevin Richard Curtis ,  William Hudson Welch ,  Pierre St. Hilaire ,  Hui-Chuan Cheng

IPC分类号： G02B27/01 ,  F21V8/00

CPC分类号： G02B27/0172 ,  G02B6/0016 ,  G02B6/0023 ,  G02B6/0038 ,  G02B2027/011 ,  G02B2027/0138 ,  G02B2027/0147 ,  G02B2027/0178

摘要： A method and system for increasing dynamic digitized wavefront resolution, i.e., the density of output beamlets, can include receiving a single collimated source light beam and producing multiple output beamlets spatially offset when out-coupled from a waveguide. The multiple output beamlets can be obtained by offsetting and replicating a collimated source light beam. Alternatively, the multiple output beamlets can be obtained by using a collimated incoming source light beam having multiple input beams with different wavelengths in the vicinity of the nominal wavelength of a particular color. The collimated incoming source light beam can be in-coupled into the eyepiece designed for the nominal wavelength. The input beams with multiple wavelengths take different paths when they undergo total internal reflection in the waveguide, which produces multiple output beamlets.

公开(公告)号：US11614628B2

公开(公告)日：2023-03-28

申请号：US17581773

申请日：2022-01-21

申请人： Magic Leap, Inc.

发明人： Michael Anthony Klug ,  Robert Konrad ,  Gordon Wetzstein ,  Brian T. Schowengerdt ,  Michal Beau Dennison Vaughn

IPC分类号： G02B27/01 ,  G02B30/24 ,  G02B30/34 ,  H04N13/128 ,  H04N13/383 ,  H04N13/344 ,  H04N13/341 ,  H04N13/339 ,  H04N13/398 ,  H04N13/324 ,  H04N13/346

摘要： An augmented reality display system is configured to direct a plurality of parallactically-disparate intra-pupil images into a viewer's eye. The parallactically-disparate intra-pupil images provide different parallax views of a virtual object, and impinge on the pupil from different angles. In the aggregate, the wavefronts of light forming the images approximate a continuous divergent wavefront and provide selectable accommodation cues for the user, depending on the amount of parallax disparity between the intra-pupil images. The amount of parallax disparity is selected using a light source that outputs light for different images from different locations, with spatial differences in the locations of the light output providing differences in the paths that the light takes to the eye, which in turn provide different amounts of parallax disparity. Advantageously, the wavefront divergence, and the accommodation cue provided to the eye of the user, may be varied by appropriate selection of parallax disparity, which may be set by selecting the amount of spatial separation between the locations of light output.

公开(公告)号：US11579441B2

公开(公告)日：2023-02-14

申请号：US17256961

申请日：2019-07-02

申请人： Magic Leap, Inc.

发明人： Richard Stephen Johnston ,  Brian T. Schowengerdt

IPC分类号： G02B26/10 ,  G09G3/00 ,  G06V40/18 ,  G02B27/01

摘要： A visual perception device has a look-up table stored in a laser driver chip. The look-up table includes relational gain data to compensate for brighter areas of a laser pattern wherein pixels are located more closely than areas where the pixels are further apart and to compensate for differences in intensity of individual pixels when the intensities of pixels are altered due to design characteristics of an eye piece.

公开(公告)号：US11353641B2

公开(公告)日：2022-06-07

申请号：US16862251

申请日：2020-04-29

申请人： Magic Leap, Inc.

发明人： Robert D. Tekolste ,  Michael Anthony Klug ,  Paul M. Greco ,  Brian T. Schowengerdt

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

摘要： 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：US20220113552A1

公开(公告)日：2022-04-14

申请号：US17555640

申请日：2021-12-20

申请人： MAGIC LEAP, INC.

发明人： Brian T. Schowengerdt

IPC分类号： G02B27/42 ,  H04N5/21 ,  G06T15/50 ,  G06T5/00 ,  H04N13/117 ,  H04N13/286 ,  H04N13/341 ,  H04N13/344 ,  H04N13/361 ,  H04N13/366 ,  H04N13/383 ,  G02B27/01 ,  G06T7/73 ,  H04N13/363 ,  H04N13/239 ,  G06T7/50 ,  G02B30/24 ,  G02F1/17 ,  G06V10/42 ,  G06V40/18 ,  G02B6/00 ,  G06T19/00 ,  G02B5/00 ,  G02F1/01 ,  G02B3/00 ,  G06T19/20 ,  G06F3/01 ,  G09G5/00 ,  H04N5/74 ,  G09G5/10 ,  G09G5/02 ,  G02B5/18 ,  G02B26/08 ,  G02B6/02 ,  G02B27/00 ,  G02B6/06 ,  G02B5/20 ,  G02F1/1334 ,  G02F1/29 ,  G06T13/40 ,  G02B6/34 ,  G02B6/40 ,  H04N5/225 ,  G02B6/32 ,  G02B17/08 ,  G06T15/10 ,  G06T17/10 ,  G09G5/18 ,  G06F3/14 ,  G06T15/00 ,  G02C7/04 ,  G02C7/10 ,  G06T5/50 ,  G02F1/31

摘要： A method for displaying virtual content to a user, the method includes determining an accommodation of the user's eyes. The method also includes delivering, through a first waveguide of a stack of waveguides, light rays having a first wavefront curvature based at least in part on the determined accommodation, wherein the first wavefront curvature corresponds to a focal distance of the determined accommodation. The method further includes delivering, through a second waveguide of the stack of waveguides, light rays having a second wavefront curvature, the second wavefront curvature associated with a predetermined margin of the focal distance of the determined accommodation.