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31.发明授权公开(公告)号：US11249255B2
公开(公告)日：2022-02-15
申请号：US17080643
申请日：2020-10-26
Applicant: Magic Leap, Inc.
Inventor： Ivan Li Chuen Yeoh , Lionel Ernest Edwin , Hui-Chuan Cheng
Abstract: An eyepiece for projecting an image to an eye of a viewer includes a first planar waveguide positioned in a first lateral plane, a second planar waveguide positioned in a second lateral plane adjacent the first lateral plane, and a third planar waveguide positioned in a third lateral plane adjacent the second lateral plane. The first planar waveguide includes a first diffractive optical element (DOE) coupled thereto and disposed at a first lateral position. The second planar waveguide includes a second DOE coupled thereto and disposed at a second lateral position. The third planar waveguide includes a third DOE coupled thereto and disposed at the second lateral position. The eyepiece further includes an optical filter positioned between the second planar waveguide and the third planar waveguide at the second lateral position.
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公开(公告)号：US11029590B2
公开(公告)日：2021-06-08
申请号：US16737728
申请日：2020-01-08
Applicant: Magic Leap, Inc.
Inventor： Jahja Trisnadi , Pierre St. Hilaire , Hui-Chuan Cheng , Clinton Carlisle , Michael Anthony Klug , Kevin Richard Curtis
Abstract: Examples of light projector systems for directing input light from a light source to a spatial light modulator are provided. For example, an optical device is disclosed which includes a first surface having a diffractive optical element, a second surface normal to the first surface, and a third surface arranged at an angle to the second surface. The third surface may be a beam splitting surface that is reflective to light of a first state and transmissive to light of a second state. The diffractive optical element may receive an input beam made up of light having the first state, and may convert the input beam into at least a first diffracted beam at a first diffraction angle such that the first diffracted beam is directed toward the second surface, is reflected by the second surface toward the third surface via total internal reflection, and is reflected by the third surface in a direction substantially parallel to the first surface.
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公开(公告)号：US20210157146A1
公开(公告)日：2021-05-27
申请号：US17143432
申请日：2021-01-07
Applicant: MAGIC LEAP, INC.
Inventor： Ivan Yeoh , Hui-Chuan Cheng , Lionel Ernest Edwin , David Tinch , William Hudson Welch
Abstract: A display subsystem for a virtual image generation system 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 mechanical drive assembly to which the optical fiber is mounted as a fixed-free flexible cantilever. The drive assembly is configured for displacing a distal end of the optical fiber about a fulcrum in accordance with a scan pattern, such that the emitted light diverges from a longitudinal axis coincident with the fulcrum. The display subsystem further comprises an optical modulation apparatus configured for converging the light from the optical fiber towards the longitudinal axis, and an optical waveguide input apparatus configured for directing the light from the optical modulation apparatus down the planar waveguide apparatus, such that the planar waveguide apparatus displays one or more image frames to an end user.
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公开(公告)号：US20200326548A1
公开(公告)日：2020-10-15
申请号：US16913872
申请日：2020-06-26
Applicant: Magic Leap, Inc.
Inventor： Hui-Chuan Cheng
Abstract: An imaging system includes a light source configured to generate a light beam. The system also includes first and second light guiding optical elements having respective first and second entry portions, and configured to propagate at least respective first and second portions of the light beam by total internal reflection. The system further includes a light distributor having a light distributor entry portion, a first exit portion, and a second exit portion. The light distributor is configured to direct the first and second portions of the light beam toward the first and second entry portions, respectively. The light distributor entry portion and the first exit portion are aligned along a first axis. The light distributor entry portion and the second exit portion are aligned along a second axis different from the first axis.
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公开(公告)号：US20200209727A1
公开(公告)日：2020-07-02
申请号：US16737728
申请日：2020-01-08
Applicant: Magic Leap, Inc.
Inventor： Jahja Trisnadi , Pierre St. Hilaire , Hui-Chuan Cheng , Clinton Carlisle , Michael Anthony Klug , Kevin Richard Curtis
Abstract: Examples of light projector systems for directing input light from a light source to a spatial light modulator are provided. For example, an optical device is disclosed which includes a first surface having a diffractive optical element, a second surface normal to the first surface, and a third surface arranged at an angle to the second surface. The third surface may be a beam splitting surface that is reflective to light of a first state and transmissive to light of a second state. The diffractive optical element may receive an input beam made up of light having the first state, and may convert the input beam into at least a first diffracted beam at a first diffraction angle such that the first diffracted beam is directed toward the second surface, is reflected by the second surface toward the third surface via total internal reflection, and is reflected by the third surface in a direction substantially parallel to the first surface.
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Patent Agency Ranking
36.发明申请公开(公告)号：US20200018972A1
公开(公告)日：2020-01-16
申请号：US16584549
申请日：2019-09-26
Applicant: Magic Leap, Inc.
Inventor： Brian T. Schowengerdt , Hong Hua , Hui-Chuan Cheng , Christophe Peroz
Abstract: Images perceived to be substantially full color or multi-colored may be formed using component color images that are distributed in unequal numbers across a plurality of depth planes. The distribution of component color images across the depth planes may vary based on color. In some embodiments, a display system includes a stack of waveguides that each output light of a particular color, with some colors having fewer numbers of associated waveguides than other colors. The stack of waveguides may include by multiple pluralities (e.g., first and second pluralities) of waveguides, each configured to produce an image by outputting light corresponding to a particular color. The total number of waveguides in the second plurality of waveguides is less than the total number of waveguides in the first plurality of waveguides, and may be more than the total number of waveguides in a third plurality of waveguides, in embodiments where three component colors are utilized.
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公开(公告)号：US20190179149A1
公开(公告)日：2019-06-13
申请号：US16215477
申请日：2018-12-10
Applicant: Magic Leap, Inc.
Inventor： Kevin Richard Curtis , Bradley Jay Sissom , Hui-Chuan Cheng , Miller Harry Schuck, III , Samarth Bhargava , Erik Heath Arend
Abstract: An optical system for an augmented reality head mounted display eyepiece that is configured to deliver images to the eye wherein the optical system includes optics. The optics are disposed so as to receive light output from the light source. The optics further arranged with respect to a spatial light modulator such that the light received from the light source passes through the optics and illuminates the spatial light modulator. The light illuminating the spatial light modulator is redirected back through the optics and is coupled into at least one waveguide through at least one in-coupling optical element. At least a portion of the coupled light is ejected from at least one waveguide by at least one out-coupling optical element and directed to the eye of the user.
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公开(公告)号：US20180284585A1
公开(公告)日：2018-10-04
申请号：US15927807
申请日：2018-03-21
Applicant: Magic Leap, Inc.
Inventor： Jahja Trisnadi , Pierre St. Hilaire , Hui-Chuan Cheng , Clinton Carlisle , Michael Anthony Klug , Kevin Richard Curtis
Abstract: Examples of light projector systems for directing input light from a light source to a spatial light modulator are provided. For example, an optical device is disclosed which includes a first surface having a diffractive optical element, a second surface normal to the first surface, and a third surface arranged at an angle to the second surface. The third surface may be a beam splitting surface that is reflective to light of a first state and transmissive to light of a second state. The diffractive optical element may receive an input beam made up of light having the first state, and convert the input beam into at least a first diffracted beam at a first diffraction angle such that the first diffracted beam is directed toward the third surface and is reflected by the third surface in a direction substantially parallel to the first surface.
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公开(公告)号：US20180284460A1
公开(公告)日：2018-10-04
申请号：US15928015
申请日：2018-03-21
Applicant: Magic Leap, Inc.
Inventor： Hui-Chuan Cheng , Chulwoo Oh , Clinton Carlisle , Michael Anthony Klug , William Molteni
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：US20180095284A1
公开(公告)日：2018-04-05
申请号：US15819887
申请日：2017-11-21
Applicant: MAGIC LEAP, INC.
Inventor： William Hudson Welch , Robert D. Tekolste , Hyunsun Chung , Hui-Chuan Cheng
CPC classification number: G02B27/0172 , G02B3/14 , G02B27/017 , G02B2027/0107 , G02B2027/0127 , G02B2027/0134 , G02B2027/014 , G02B2027/0178 , G02B2027/0185 , G02B2027/0187 , G02B2027/0194 , G06F3/012 , G06F3/013
Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise a spatial light modulator operatively coupled to an image source for projecting light associated with one or more frames of image data, and a variable focus element (VFE) for varying a focus of the projected light such that a first frame of image data is focused at a first depth plane, and a second frame of image data is focused at a second depth plane, and wherein a distance between the first depth plane and the second depth plane is fixed.
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