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31.发明授权公开(公告)号：US11656462B2
公开(公告)日：2023-05-23
申请号：US16978165
申请日：2019-03-05
Applicant: Magic Leap, Inc.
Inventor： Ravi Kumar Komanduri , Chulwoo Oh
IPC: G09G5/00 , G02B27/01 , G06T19/00 , C12Q1/6844 , G02F1/1335 , G02F1/13363
CPC classification number: G02B27/0172 , C12Q1/6844 , G06T19/006 , G02F1/13363 , G02F1/133526
Abstract: The present disclosure relates to display systems and, more particularly, to augmented reality display systems. In one aspect, an adaptive lens assembly includes a lens stack configured to exert polarization-dependent optical power to linearly polarized light. The lens stack includes a birefringent lens and an isotropic lens contacting each other to form a conformal interface therebetween. The adaptive lens assembly is configured to be selectively switched between a plurality of states having different optical powers.
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32.发明授权公开(公告)号：US11567371B2
公开(公告)日：2023-01-31
申请号：US16825913
申请日：2020-03-20
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh , Chieh Chang , Sharad D. Bhagat , Michael Anthony Klug
IPC: G02F1/1337 , G02F1/1333 , G02B27/01 , C09K19/00 , B32B43/00 , B32B38/10
Abstract: Soft-imprint alignment processes for patterning liquid crystal polymer layers via contact with a reusable alignment template are described herein. An example soft-imprint alignment process includes contacting a liquid crystal polymer layer with a reusable alignment template that has a desired surface alignment pattern such that the liquid crystal molecules of the liquid crystal polymer are aligned to the surface alignment pattern via chemical, steric, or other intermolecular interaction. The patterned liquid crystal polymer layer may then be polymerized and separated from the reusable alignment template. The process can be repeated many times. The reusable alignment template may include a photo-alignment layer that does not comprise surface relief structures that correspond to the surface alignment pattern and a release layer above this photo-alignment layer. A reusable alignment template and methods of fabricating the same are also disclosed.
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公开(公告)号：US20220413311A1
公开(公告)日：2022-12-29
申请号：US17895868
申请日：2022-08-25
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：US11378864B2
公开(公告)日：2022-07-05
申请号：US15815567
申请日：2017-11-16
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh
IPC: G02F1/365 , G02B3/00 , G02F1/00 , G02F1/1335
Abstract: A two-dimensional waveguide light multiplexer is described herein that can efficiently multiplex and distribute a light signal in two dimensions. An example of a two-dimensional waveguide light multiplexer can include a waveguide, a first diffraction grating, and a second diffraction grating disposed above the first diffraction grating and arranged such that the grating direction of the first diffraction grating is perpendicular to the grating direction of the second diffraction grating. Methods of fabricating a two-dimensional waveguide light multiplexer are also disclosed.
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公开(公告)号：US20220146888A1
公开(公告)日：2022-05-12
申请号：US17582845
申请日：2022-01-24
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh , Ravi Kumar Komanduri , Roy Matthew Patterson , Charles Scott Carden , Michael Nevin Miller , Vikramjit Singh
IPC: G02F1/13363 , G02F1/1335 , G02F1/139 , G02F1/1337 , G02F1/1343 , G02F1/01
Abstract: A display device comprises a waveguide configured to guide light in a lateral direction parallel to an output surface of the waveguide. The waveguide is further configured to outcouple the guided light through the output surface. The display device additionally comprises a broadband adaptive lens assembly configured to incouple and to diffract therethrough the outcoupled light from the waveguide. The broadband adaptive lens assembly comprises a first waveplate lens comprising a liquid crystal (LC) layer arranged such that the waveplate lens has birefringence (Δn) that varies in a radially outward direction from a central region of the first waveplate lens and configured to diffract the outcoupled light at a diffraction efficiency greater than 90% within a wavelength range including at least 450 nm to 630 nm. The broadband adaptive lens assembly is configured to be selectively switched between a plurality of states having different optical powers.
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Patent Agency Ranking
公开(公告)号：US20220082833A1
公开(公告)日：2022-03-17
申请号：US17385554
申请日：2021-07-26
Applicant: Magic Leap, Inc.
Inventor： Chunyu Gao , Chulwoo Oh , Michael Anthony Klug , Evyatar Bluzer
IPC: G02B27/01 , H04N13/383 , G06T19/00 , H04N13/332 , H04N13/344 , G02B27/00
Abstract: Examples of eye-imaging apparatus using diffractive optical elements are provided. For example, an optical device comprises a substrate having a proximal surface and a distal surface, a first coupling optical element disposed on one of the proximal and distal surfaces of the substrate, and a second coupling optical element disposed on one of the proximal and distal surfaces of the substrate and offset from the first coupling optical element. The first coupling optical element can be configured to deflect light at an angle to totally internally reflect (TIR) the light between the proximal and distal surfaces and toward the second coupling optical element, and the second coupling optical element can be configured to deflect at an angle out of the substrate. The eye-imaging apparatus can be used in a head-mounted display such as an augmented or virtual reality display.
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公开(公告)号：US11256153B2
公开(公告)日：2022-02-22
申请号：US17227058
申请日：2021-04-09
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh
Abstract: Examples of diffractive devices comprise a cholesteric liquid crystal (CLC) layer comprising a plurality of chiral structures, wherein each chiral structure comprises a plurality of liquid crystal molecules that extend in a layer depth direction by at least a helical pitch and are successively rotated in a first rotation direction. Arrangements of the liquid crystal molecules of the chiral structures vary periodically in a lateral direction perpendicular to the layer depth direction to provide a diffraction grating. The diffractive devices can be configured to reflect light having a particular wavelength range and sense of circular polarization. The diffractive devices can be used in waveguides and imaging systems in augmented or virtual reality systems.
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公开(公告)号：US20210382317A1
公开(公告)日：2021-12-09
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：US11187900B2
公开(公告)日：2021-11-30
申请号：US15927970
申请日：2018-03-21
Applicant: Magic Leap, Inc.
Inventor： Hui-Chuan Cheng , Wei Chen Lin , Hyunsun Chung , Jahja I. Trisnadi , Clinton Carlisle , Kevin Richard Curtis , Chulwoo Oh
IPC: G02B27/01 , G02B27/14 , G03B21/00 , G06T19/00 , G09G3/24 , G02B30/26 , G02B27/00 , G06F3/01 , G02B5/30 , F21V8/00 , G02F1/137 , G03B21/20 , G02B30/52 , H04N13/279 , H04N13/344 , H04N13/239 , G06F3/0482 , G06K9/00 , H04N13/00 , G09G3/02
Abstract: An optical device comprising may include a wedge-shaped 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 that is inclined with respect to the horizontal axis by a wedge angle. 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 second surface may be inclined such that a height of the light input surface is less than a height of the side opposite the light input surface. The light coupled into the wedge-shaped 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：US20210294146A1
公开(公告)日：2021-09-23
申请号：US17227058
申请日：2021-04-09
Applicant: Magic Leap, Inc.
Inventor： Chulwoo Oh
Abstract: Examples of diffractive devices comprise a cholesteric liquid crystal (CLC) layer comprising a plurality of chiral structures, wherein each chiral structure comprises a plurality of liquid crystal molecules that extend in a layer depth direction by at least a helical pitch and are successively rotated in a first rotation direction. Arrangements of the liquid crystal molecules of the chiral structures vary periodically in a lateral direction perpendicular to the layer depth direction to provide a diffraction grating. The diffractive devices can be configured to reflect light having a particular wavelength range and sense of circular polarization. The diffractive devices can be used in waveguides and imaging systems in augmented or virtual reality systems.
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