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公开(公告)号：US12181676B2
公开(公告)日：2024-12-31
申请号：US18241772
申请日：2023-09-01
Applicant: Magic Leap, Inc.
Inventor： Robert Dale Tekolste , Michael Anthony Klug , Brian T. Schowengerdt
Abstract: Architectures are provided for selectively outputting light for forming images, the light having different wavelengths and being outputted with low levels of crosstalk. In some embodiments, light is incoupled into a waveguide and deflected to propagate in different directions, depending on wavelength. The incoupled light then outcoupled by outcoupling optical elements that outcouple light based on the direction of propagation of the light. In some other embodiments, color filters are between a waveguide and outcoupling elements. The color filters limit the wavelengths of light that interact with and are outcoupled by the outcoupling elements. In yet other embodiments, a different waveguide is provided for each range of wavelengths to be outputted. Incoupling optical elements selectively incouple light of the appropriate range of wavelengths into a corresponding waveguide, from which the light is outcoupled.
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公开(公告)号：US12135435B2
公开(公告)日：2024-11-05
申请号：US17210236
申请日：2021-03-23
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Mathew D. Watson
Abstract: A method of displaying an image to a viewer includes operating a fiber scanning projector to produce a scanned light beam incident on an incoupling diffractive optical element (DOE) coupled to a waveguide. A portion of the light beam is reflected via a reflective back surface of the incoupling DOE. The reflected portion of the scanned light beam is incident on a reflective optical element, which reflects the light beam back to the incoupling DOE. The returning light beam is then diffracted by the incoupling DOE to produce a second pass first diffracted light beam. The second pass first diffracted light beam is propagated within the planar waveguide via total internal reflection (TIR) to an outcoupling DOE, which directs a portion of the second pass first diffracted light beam toward an eye of a viewer to display the image to the user.
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公开(公告)号：US20240280827A1
公开(公告)日：2024-08-22
申请号：US18650003
申请日：2024-04-29
Applicant: Magic Leap, Inc.
Inventor： Ivan Li Chuen Yeoh , Lionel Ernest Edwin , Brian T. Schowengerdt , Michael Anthony Klug , Jahja I. Trisnadi
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US12029487B2
公开(公告)日：2024-07-09
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
IPC: A61B3/00 , A61B3/12 , 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.
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公开(公告)号：US20240151975A1
公开(公告)日：2024-05-09
申请号：US18410899
申请日：2024-01-11
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Lionel Ernest Edwin , Ivan Yeoh , Aaron Mark Schuelke , William Hudson Welch , John Graham Macnamara
CPC classification number: 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
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US11935206B2
公开(公告)日：2024-03-19
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
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.
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公开(公告)号：US20230384499A1
公开(公告)日：2023-11-30
申请号：US18449268
申请日：2023-08-14
Applicant: Magic Leap, Inc.
Inventor： Michael Anthony Klug , Brian T. Schowengerdt , Michael Nevin Miller , Vikramjit Singh , Christophe Peroz , Pierre St. Hilaire , Jie Sun
IPC: G02B5/30 , G02B27/01 , F21V8/00 , G02B5/18 , G02B26/10 , G02B27/42 , G02B27/00 , G02B27/10 , G02F1/13 , G02B1/00 , G02B27/28
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US20230280594A1
公开(公告)日：2023-09-07
申请号：US18196349
申请日：2023-05-11
Applicant: Magic Leap, Inc.
Inventor： Lionel Ernest Edwin , Ivan Li Chuen Yeoh , Brian T. Schowengerdt , Kevin Richard Curtis , William Hudson Welch , Pierre St. Hilaire , Hui-Chuan Cheng
CPC classification number: G02B27/0172 , G02B6/0016 , G02B6/0023 , G02B6/0038 , G02B2027/011 , G02B2027/0138 , G02B2027/0147 , G02B2027/0178
Abstract: 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.
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公开(公告)号：US11614628B2
公开(公告)日：2023-03-28
申请号：US17581773
申请日：2022-01-21
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 , H04N13/324 , H04N13/346
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：US11579441B2
公开(公告)日：2023-02-14
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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