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公开(公告)号：US11567320B2
公开(公告)日：2023-01-31
申请号：US15927997
申请日：2018-03-21
Applicant: Magic Leap, Inc.
Inventor： Hui-Chuan Cheng , Hyunsun Chung , Jahja I. Trisnadi , Clinton Carlisle , Chulwoo Oh , Kevin Richard Curtis
IPC: G02B27/01 , G02B5/30 , F21V8/00 , G02B30/26 , G02B27/00 , G02B27/14 , G02F1/137 , G03B21/00 , G06F3/01 , G06T19/00 , G09G3/24 , H04N13/279 , H04N13/00 , H04N13/239 , G02B30/52 , G06V20/20 , H04N13/344 , G03B21/20 , G06F3/0482 , G09G3/02
Abstract: An optical device comprising may include a light turning element. The optical device can include a first surface that is parallel to a horizontal axis and a second surface opposite to the first surface. The optical device may include a light module that includes a plurality of light emitters. The light module can be configured to combine light for the plurality of emitters. The optical device can further include a light input surface that is between the first and the second surfaces and is disposed with respect to the light module to receive light emitted from the plurality of emitters. The optical device may include an end reflector that is disposed on a side opposite the light input surface. The light coupled into the light turning element may be reflected by the end reflector and/or reflected from the second surface towards the first surface.
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公开(公告)号：US20220326513A1
公开(公告)日：2022-10-13
申请号：US17845396
申请日：2022-06-21
Applicant: Magic Leap, Inc.
Inventor： Ivan Li-Chuen Yeoh , Lionel Ernest Edwin , Barak Freedman , Vaibhav Mathur , Xiaoyang Zhang , Timothy Mark Dalrymple , Clinton Carlisle , Chulwoo Oh , Philip Premysler
Abstract: A method for providing a composite field of view includes providing two or more input light beams to a scanning mirror and scanning the two or more input light beams using the scanning mirror to provide a plurality of reflected light beams at different angles. Each of the plurality of reflected light beams is configured to provide an image in a respective field of view. The method also includes receiving the plurality of reflected light beams in a waveguide and projecting a plurality of output light beams from the waveguide to form a projected image in the composite field of view. The composite field of view is larger than the respective field of view provided by each of the two or more input light beams.
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公开(公告)号：US11467416B2
公开(公告)日：2022-10-11
申请号：US17351110
申请日：2021-06-17
Applicant: Magic Leap, Inc.
Inventor： Hui-Chuan Cheng , Chulwoo Oh , Clinton Carlisle , Michael Anthony Klug , William J. Molteni, Jr.
Abstract: Illuminations systems that separate different colors into laterally displaced beams may be used to direct different color image content into an eyepiece for displaying images in the eye. Such an eyepiece may be used, for example, for an augmented reality head mounted display. Illumination systems may be provided that utilize one or more waveguides to direct light from a light source towards a spatial light modulator. Light from the spatial light modulator may be directed towards an eyepiece. Some aspects of the invention provide for light of different colors to be outcoupled at different angles from the one or more waveguides and directed along different beam paths.
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公开(公告)号：US20220221747A1
公开(公告)日：2022-07-14
申请号：US17710674
申请日：2022-03-31
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , John Graham Macnamara , Chulwoo Oh
Abstract: A wearable augmented reality head-mounted display system can be configured to pass light from the world forward a wearer wearing the head-mounted system into an eye of the wearer. The head-mounted display system can include an optical display that is configured to output light to form an image. The system may include one or more waveguides that are disposed to receiving the light from the display. A variable power reflector can be disposed on the forward side of the one or more waveguides. The reflector can be configured to have an optical power that is adjustable upon application of an electrical signal.
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公开(公告)号：US11269144B2
公开(公告)日：2022-03-08
申请号：US15926920
申请日：2018-03-20
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh , Vikraman Parthiban
Abstract: In one aspect, an optical device comprises a plurality of waveguides formed over one another and having formed thereon respective diffraction gratings, wherein the respective diffraction gratings are configured to diffract visible light incident thereon into respective waveguides, such that visible light diffracted into the respective waveguides propagates therewithin. The respective diffraction gratings are configured to diffract the visible light into the respective waveguides within respective field of views (FOVs) with respect to layer normal directions of the respective waveguides. The respective FOVs are such that the plurality of waveguides are configured to diffract the visible light within a combined FOV that is continuous and greater than each of the respective FOVs.
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Patent Agency Ranking
公开(公告)号：US20220035161A1
公开(公告)日：2022-02-03
申请号：US17278629
申请日：2019-09-25
Applicant: Magic Leap, Inc.
Inventor： Asif Sinay , Nizan Meitav , Chulwoo Oh , Barak Freedman , Michael Anthony Klug , Adam Charles Carlson
Abstract: A head mounted display system can include a camera, at least one waveguide, at least one coupling optical element that is configured such that light is coupled into said waveguide and guided therein, and at least one out-coupling element. The at least one out-coupling element can be configured to couple light that is guided within said waveguide out of said waveguide and direct said light to said camera. The at least one coupling element may comprise a diffractive optical element having optical power.
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公开(公告)号：US20210405374A1
公开(公告)日：2021-12-30
申请号：US17370882
申请日：2021-07-08
Applicant: Magic Leap, Inc.
Inventor： Ravi Kumar Komanduri , Lionel Ernest Edwin , Chulwoo Oh
IPC: G02B27/01 , H04N13/279 , G02B27/42 , G02B5/30 , G06T19/00 , H04N13/344
Abstract: Techniques for operating an optical system are disclosed. World light may be linearly polarized along a first axis. When the optical system is operating in accordance with a first state, a polarization of the world light may be rotated by 90 degrees, the world light may be linearly polarized along a second axis perpendicular to the first axis, and zero net optical power may be applied to the world light. When the optical system is operating in accordance with a second state, virtual image light may be projected onto an eyepiece of the optical system, the world light and the virtual image light may be linearly polarized along the second axis, a polarization of the virtual image light may be rotated by 90 degrees, and non-zero net optical power may be applied to the virtual image light.
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公开(公告)号：US20210311351A1
公开(公告)日：2021-10-07
申请号：US17174163
申请日：2021-02-11
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh
IPC: G02F1/1335 , G02B27/42 , G02B5/18 , G02B27/01
Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems. A diffraction grating includes a plurality of different diffracting zones having a periodically repeating lateral dimension corresponding to a grating period adapted for light diffraction. The diffraction grating additionally includes a plurality of different liquid crystal layers corresponding to the different diffracting zones. The different liquid crystal layers have liquid crystal molecules that are aligned differently, such that the different diffracting zones have different optical properties associated with light diffraction.
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公开(公告)号：US20210302636A1
公开(公告)日：2021-09-30
申请号：US17211457
申请日：2021-03-24
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh , Ravi Kumar Komanduri , David Kleinman , Vaibhav Mathur , David Manly
IPC: G02B5/30 , G02B5/08 , G02F1/1335 , G02B27/01 , F21V8/00
Abstract: In some implementations, an optical device includes a one-way mirror formed by a polarization selective mirror and an absorptive polarizer. The absorptive polarizer has a transmission axis aligned with the transmission axis of the reflective polarizer. The one-way mirror may be provided on the world side of a head-mounted display system. Advantageously, the one-way mirror may reflect light from the world, which provides privacy and may improve the cosmetics of the display. In some implementations, the one-way mirror may include one or more of a depolarizer and a pair of opposing waveplates to improve alignment tolerances and reduce reflections to a viewer. In some implementations, the one-way mirror may form a compact integrated structure with a dimmer for reducing light transmitted to the viewer from the world.
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公开(公告)号：US11036109B2
公开(公告)日：2021-06-15
申请号：US15902927
申请日：2018-02-22
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh
Abstract: Example display devices include a waveguide configured to propagate visible light under total internal reflection in a direction parallel to a major surface of the waveguide. The waveguide has formed thereon an outcoupling element configured to outcouple a portion of the visible light in a direction normal to the major surface of the waveguide. The example display devices additionally include a polarization-selective notch reflector disposed on a first side of the waveguide and configured to reflect visible light having a first polarization while transmitting the portion of the visible light having a second polarization. The example display devices further include a polarization-independent notch reflector disposed on a second side of the waveguide and configured to reflect visible light having the first polarization and the second polarization, where the polarization-independent notch reflector is configured to convert a polarization of visible light reflecting therefrom.
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