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公开(公告)号：US20220015629A1
公开(公告)日：2022-01-20
申请号：US17295586
申请日：2019-11-20
Applicant: UNIVERSITY OF WASHINGTON , MAGIC LEAP, INC.
Inventor： Eric J. SEIBEL , Chen GONG , Steven L. BRUNTON , Nils Benjamin ERICHSON , Laura TRUTOIU , Brian T. SCHOWENGERDT
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.
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公开(公告)号：US20210325600A1
公开(公告)日：2021-10-21
申请号：US17317437
申请日：2021-05-11
Applicant: Magic Leap, Inc.
Inventor： Brian T. SCHOWENGERDT , Matthew D. WATSON
IPC: G02B6/06 , G02B27/01 , G02B6/08 , G02B26/08 , G02B6/02 , G02B6/028 , G02B6/32 , G02B26/10 , G02F1/335
Abstract: One embodiment is directed to a compact system for scanning electromagnetic imaging radiation, comprising a first waveguide and a second waveguide, each of which is operatively coupled to at least one electromagnetic radiation source and configured such that output from the first and second waveguides is luminance modulated and scanned along one or more axes to form at least a portion of an image.
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公开(公告)号：US20210181500A1
公开(公告)日：2021-06-17
申请号：US17256961
申请日：2019-07-02
Applicant: Magic Leap, Inc.
Inventor： Richard Stephen JOHNSTON , Brian T. SCHOWENGERDT
Abstract: 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.
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4.发明申请公开(公告)号：US20200301149A1
公开(公告)日：2020-09-24
申请号：US16868826
申请日：2020-05-07
Applicant: Magic Leap, Inc.
Inventor： Robert D. TEKOLSTE , Michael A. KLUG , Paul M. GRECO , Brian T. SCHOWENGERDT
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.
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公开(公告)号：US20190154914A1
公开(公告)日：2019-05-23
申请号：US16257932
申请日：2019-01-25
Applicant: Magic Leap, Inc.
Inventor： Brian T. SCHOWENGERDT , Matthew D. WATSON
IPC: G02B6/06 , G02B6/028 , G02B26/10 , G02B27/01 , G02B6/32 , G02F1/335 , G02B6/02 , G02B26/08 , G02B6/08
Abstract: One embodiment is directed to a compact system for scanning electromagnetic imaging radiation, comprising a first waveguide and a second waveguide, each of which is operatively coupled to at least one electromagnetic radiation source and configured such that output from the first and second waveguides is luminance modulated and scanned along one or more axes to form at least a portion of an image.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240045215A1
公开(公告)日：2024-02-08
申请号：US18490169
申请日：2023-10-19
Applicant: Magic Leap, Inc.
Inventor： Michael Anthony KLUG , Robert KONRAD , Gordon WETZSTEIN , Brian T. SCHOWENGERDT , Michal Beau Dennison VAUGHN
IPC: G02B27/01 , G02B30/24 , G02B30/34 , H04N13/128 , H04N13/383 , H04N13/344 , H04N13/341 , H04N13/339 , H04N13/398
CPC classification number: G02B27/0172 , G02B30/24 , G02B30/34 , H04N13/128 , H04N13/383 , H04N13/344 , H04N13/341 , H04N13/339 , H04N13/398 , G02B27/0179 , H04N13/324
Abstract: 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.
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公开(公告)号：US20230237749A1
公开(公告)日：2023-07-27
申请号：US18296141
申请日：2023-04-05
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
CPC classification number: G06T19/006 , G02B27/0944 , G02B27/0972 , G02B27/10 , G02B27/0955 , G02B27/30 , G02B5/18 , G02B27/42 , G02B27/0172 , G02B26/08 , G02B27/106 , G02B2006/1215
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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8.发明申请公开(公告)号：US20230055420A1
公开(公告)日：2023-02-23
申请号：US18047210
申请日：2022-10-17
Applicant: Magic Leap, Inc.
Inventor： Robert D. TEKOLSTE , Michael A. KLUG , Paul M. GRECO , Brian T. SCHOWENGERDT
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.
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公开(公告)号：US20210397254A1
公开(公告)日：2021-12-23
申请号：US17345305
申请日：2021-06-11
Applicant: UNIVERSITY OF WASHINGTON , MAGIC LEAP, INC.
Inventor： Eric J. SEIBEL , Steven L. BRUNTON , Chen GONG , Brian T. SCHOWENGERDT
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.
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公开(公告)号：US20180179106A1
公开(公告)日：2018-06-28
申请号：US15851049
申请日：2017-12-21
Applicant: Magic Leap, Inc.
Inventor： Brian T. SCHOWENGERDT , Mathew D. WATSON , Charles David MELVILLE , An-Shyang CHU , Timothy Mark DALRYMPLE , Vaibhav MATHUR , Alejandro LOPEZ , Aaron Mark SCHUELKE
IPC: C03C25/68 , C03C25/6208
Abstract: A method of fabricating a variable diameter fiber includes providing a fiber optic cable, focusing a laser beam at a predetermined location inside the fiber optic cable, and creating a damage site at the predetermined location. The method also includes focusing the laser beam at a series of additional predetermined locations inside the fiber optic cable and creating a plurality of additional damage sites at the additional predetermined locations. The damage site and the additional damage sites define a variable diameter profile. The method further includes exposing the fiber optic cable to an etchant solution, preferentially etching the damage site and the plurality of additional damage sites, and separating a portion of the fiber optic cable to release the variable diameter fiber.
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