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公开(公告)号：US12061338B2
公开(公告)日：2024-08-13
申请号：US18343497
申请日：2023-06-28
Applicant: Magic Leap, Inc.
Inventor： Zhiheng Jia , Hao Zheng , Jeffrey Todd Daiker , Jeremy A. Grata
CPC classification number: G02B27/0101 , G02B5/18 , G02B27/0172 , G02B27/44 , G02B2027/0174
Abstract: Augmented reality glasses include near eye displays the include sources of imagewise amplitude modulated light optical coupled to spatial phase modulators or active zone plate modulators and optically coupled to eye coupling optics. The sources of imagewise amplitude modulated light can include emissive 2D display panels or light sources coupled to imagewise amplitude modulators. The eye coupling optics can include volume holographic diffraction gratings.
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公开(公告)号：US20230367123A1
公开(公告)日：2023-11-16
申请号：US18110856
申请日：2023-02-16
Applicant: Meta Platforms Technologies, LLC
Inventor： Babak Amirsolaimani
CPC classification number: G02B27/0172 , G02B27/0977 , G02B27/286 , G02B27/44 , G02B2027/0123
Abstract: A near-eye display has an image projector coupled to a lightguide for receiving and propagating image light provided by the image projector, the image light carrying an image to be displayed to a viewer. Field of view of the near-eye display may be expanded by providing a beam redirector downstream of the lightguide for controllably redirecting the image light in coordination with displaying different field of view portions by the image projector. To compensate the redirection of external light by the beam redirector, a second beam redirector may be provided upstream of the first redirector and the lightguide.
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公开(公告)号：US11803054B2
公开(公告)日：2023-10-31
申请号：US17548900
申请日：2021-12-13
Applicant: Magic Leap, Inc.
Inventor： Zhiheng Jia , Hao Zheng , Jeffrey Todd Daiker , Jeremy A. Grata
CPC classification number: G02B27/0101 , G02B5/18 , G02B27/0172 , G02B27/44 , G02B2027/0174
Abstract: Augmented reality glasses include near eye displays the include sources of imagewise amplitude modulated light optical coupled to spatial phase modulators or active zone plate modulators and optically coupled to eye coupling optics. The sources of imagewise amplitude modulated light can include emissive 2D display panels or light sources coupled to imagewise amplitude modulators. The eye coupling optics can include volume holographic diffraction gratings.
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4.发明公开公开(公告)号：US20230266599A1
公开(公告)日：2023-08-24
申请号：US18015322
申请日：2021-07-07
Applicant: Vuzix Corporation
Inventor： Robert J. Schultz
CPC classification number: G02B27/4205 , G02B27/0172 , G02B27/44 , G02B27/4272
Abstract: An image light guide for conveying image bearing light comprising a substrate operable to propagate image-bearing light beams along a length thereof. An in-coupling diffractive optic is formed along the substrate and is operable to diffract a portion of image-bearing light beams from an image source into the substrate in an angularly encoded form. An out- coupling diffractive optic is formed along the substrate at least partially in a plane having an x-axis and a y-axis, and is operable to diffract a portion of the image-bearing light beams from the substrate in an angularly decoded form. The out-coupling diffractive optic comprises a first plurality of periodic structures and a second plurality of periodic structures operable to diffract a portion of the image-bearing light beams into diffractive orders. The first and second pluralities of periodic structures comprise a plurality of vertices, wherein each adjacent vertex along the x-axis is offset in the y-axis direction.
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公开(公告)号：US20230213770A1
公开(公告)日：2023-07-06
申请号：US18009561
申请日：2021-06-09
Applicant: Vuzix Corporation
Inventor： Robert J. Schultz , Marek W. Kowarz , Robert W. Gray
CPC classification number: G02B27/0172 , G02B27/4233 , G02B27/44
Abstract: An image light guide for conveying a virtual image, including a waveguide, an in-coupling diffractive optic operable to direct image-bearing light beams into the waveguide, and an out-coupling diffractive optic operable to direct the image-bearing light beams from the waveguide toward an eyebox. The out-coupling diffractive optic having two or more zones each including a set of diffractive features, wherein successive zones along one dimension of the out-coupling diffractive optic have different respective sets of diffractive features, wherein the diffractive features are operable to direct image-bearing light beams of a first pixel incident upon the diffractive features at a first angle whereby the directed image-bearing light beams of the first pixel further propagate within the waveguide, and wherein the diffractive features are operable to out-couple a portion of the image-bearing light beams of the first pixel incident upon the diffractive features at a second angle.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20230176380A1
公开(公告)日：2023-06-08
申请号：US17698996
申请日：2022-03-18
Applicant: Facebook Technologies, LLC
Inventor： Sihui He , Jacques Gollier , Maxwell Parsons , Babak Amirsolaimani , Wanli Chi , Daniel Guenther Greif , Renate Eva Klementine Landig , Xiayu Feng , Zhimin Shi , Nicholas John Diorio , Yang Yang , Giuseppe Calafiore , Fenglin Peng , Tanya Malhotra , Andrew John Ouderkirk
CPC classification number: G02B27/0172 , G02B27/44 , G02B27/0179 , G02B2027/0105 , G02B2027/0174 , G02B2027/0178 , G02B2027/0187
Abstract: A pupil-replicating lightguide includes a slab of transparent material for guiding image light in the slab, and an out-coupling structure supported by the slab for out-coupling portions of the image light from the slab. The portions are laterally offset from one another along a path of the image light in the slab. The out-coupling grating structure has a switchable distribution of out-coupling efficiency for redirecting the portions of out-coupled light to a desired location such as a current location of an eye of the viewer determined by an eye tracking system. The out-coupling grating structure may include a plurality of diffraction gratings having different local slant angles of grating fringes.
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公开(公告)号：US09928420B2
公开(公告)日：2018-03-27
申请号：US13925762
申请日：2013-06-24
Applicant: Microsoft Technology Licensing, LLC
Inventor： Adam G. Kirk , Oliver A. Whyte , Sing Bing Kang , Charles Lawrence Zitnick, III , Richard S. Szeliski , Shahram Izadi , Christoph Rhemann , Andreas Georgiou , Avronil Bhattacharjee
IPC: H04N13/00 , H04N5/33 , G06K9/00 , G06K9/62 , G06F11/30 , G06F3/06 , G06F9/30 , G06F12/02 , G06F12/00 , B29C64/386 , H04N13/02 , G02B27/42 , G02B5/18 , G02B27/44 , H04N5/225 , H04N9/04 , H04N17/00 , G01B11/25 , G01B11/22 , G06T1/60 , G06T7/00 , G06T7/586 , B29C64/00 , A63F13/213
CPC classification number: G06K9/00536 , A63F13/213 , B29C64/00 , B29C64/386 , G01B11/22 , G01B11/25 , G01B11/2513 , G01B11/2527 , G01B11/2545 , G02B5/1895 , G02B27/4205 , G02B27/4233 , G02B27/44 , G06F3/0653 , G06F3/0659 , G06F3/0683 , G06F9/3004 , G06F9/30043 , G06F9/30127 , G06F11/3024 , G06F12/00 , G06F12/02 , G06F12/0207 , G06F12/0292 , G06K9/00201 , G06K9/0063 , G06K9/62 , G06T1/60 , G06T7/00 , G06T7/586 , G06T2207/30244 , H04N5/2256 , H04N5/33 , H04N5/332 , H04N9/045 , H04N13/128 , H04N13/239 , H04N13/25 , H04N13/254 , H04N13/271 , H04N17/002 , H04N2013/0081
Abstract: The subject disclosure is directed towards a high resolution, high frame rate, robust stereo depth system. The system provides depth data in varying conditions based upon stereo matching of images, including actively illuminated IR images in some implementations. A clean IR or RGB image may be captured and used with any other captured images in some implementations. Clean IR images may be obtained by using a notch filter to filter out the active illumination pattern. IR stereo cameras, a projector, broad spectrum IR LEDs and one or more other cameras may be incorporated into a single device, which may also include image processing components to internally compute depth data in the device for subsequent output.
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公开(公告)号：US20170363880A1
公开(公告)日：2017-12-21
申请号：US15532670
申请日：2015-12-03
Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
Inventor： Eric Mazur , Michael Gerhard Moebius , Kevin Vora , Seung Yeon Kang , Phillip Alejandro Munoz , Guoliang Deng
CPC classification number: G02B27/44 , G02B5/1857 , G02B5/1876 , G02B21/0008 , G02B27/4272
Abstract: Diffractive optical elements and methods for their fabrication are disclosed. In one aspect, a diffractive optical element is disclosed, which comprises a polymeric substrate substantially transparent to at least one electromagnetic radiation wavelength, and a plurality of metallic inclusions distributed in said polymeric substrate according to a predefined pattern such that said inclusions can collectively diffract at least a portion of incident radiation having said at least one radiation wavelength.
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公开(公告)号：US09791703B1
公开(公告)日：2017-10-17
申请号：US15097661
申请日：2016-04-13
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： Tuomas Vallius , Jani Tervo
IPC: G02B27/14 , G02B27/44 , G02B5/18 , G02F1/29 , H04N13/04 , G02B27/01 , F21V8/00 , G02B27/00 , G02B27/22 , G02F1/295 , G02B27/42
CPC classification number: G02B27/0172 , G02B5/18 , G02B5/1814 , G02B5/1819 , G02B6/0026 , G02B6/005 , G02B27/0081 , G02B27/2235 , G02B27/4205 , G02B27/44 , G02B2005/1804 , G02B2027/0123 , G02B2027/0125 , G02B2027/013 , G02B2027/0174 , G02F1/292 , G02F1/295 , H04N13/332 , H04N13/344
Abstract: An input-coupler of an optical waveguide couples light corresponding to the image and having a corresponding FOV into the optical waveguide, and the input-coupler splits the FOV of the image coupled into the optical waveguide into first and second portions by diffracting a portion of the light corresponding to the image in a first direction toward a first intermediate-component, and diffracting a portion of the light corresponding to the image in a second direction toward a second intermediate-component. An output-coupler of the waveguide combines the light corresponding to the first and second portions of the FOV, and couples the light corresponding to the combined first and second portions of the FOV out of the optical waveguide so that the light corresponding to the image and the combined first and second portions of the FOV is output from the optical waveguide. The intermediate-components and the output-coupler also provide for pupil expansion.
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公开(公告)号：US09760770B2
公开(公告)日：2017-09-12
申请号：US13918892
申请日：2013-06-14
Applicant: Microsoft Corporation
Inventor： Kenneth Hiroshi Eguro , Ray A. Bittner, Jr. , George E. Smith , Shawn Michael Swilley , Rehan Ahmed
IPC: G06K9/00 , H04N5/33 , G06K9/62 , G06F11/30 , G06F3/06 , G06F9/30 , G06F12/02 , G06F12/00 , H04N13/02 , H04N13/00 , G02B27/42 , B29C67/00 , G02B5/18 , G02B27/44 , H04N5/225 , H04N9/04 , H04N17/00 , G01B11/25 , G01B11/22 , G06T1/60 , G06T7/00 , G06T7/586 , A63F13/213
CPC classification number: G06K9/00536 , A63F13/213 , B29C64/00 , B29C64/386 , G01B11/22 , G01B11/25 , G01B11/2513 , G01B11/2527 , G01B11/2545 , G02B5/1895 , G02B27/4205 , G02B27/4233 , G02B27/44 , G06F3/0653 , G06F3/0659 , G06F3/0683 , G06F9/3004 , G06F9/30043 , G06F9/30127 , G06F11/3024 , G06F12/00 , G06F12/02 , G06F12/0207 , G06F12/0292 , G06K9/00201 , G06K9/0063 , G06K9/62 , G06T1/60 , G06T7/00 , G06T7/586 , G06T2207/30244 , H04N5/2256 , H04N5/33 , H04N5/332 , H04N9/045 , H04N13/128 , H04N13/239 , H04N13/25 , H04N13/254 , H04N13/271 , H04N17/002 , H04N2013/0081
Abstract: The subject disclosure is directed towards loading parallel memories (e.g., in one or more FPGAs) with multidimensional data in an interleaved manner such that a multidimensional patch/window may be filled with corresponding data in a single parallel read of the memories. Depending on the position of the patch, the data may be rotated horizontally and/or vertically, for example, so that the data in each patch is consistently arranged in the patch regardless of from which memory each piece of data was read. Also described is leveraging dual ported memory for multiple line reads and/or loading one part of a buffer while reading from another.
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