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公开(公告)号：US12259553B2
公开(公告)日：2025-03-25
申请号：US17666227
申请日：2022-02-07
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Miaomiao Xu , Brian Wheelwright , Fenglin Peng , Ying Geng , Changwon Jang , Maxwell Parsons , Sihui He , Jacques Gollier
Abstract: An illuminator for illuminating a display panel includes a lightguide with an array of buried slanted bulk reflectors that out-couple portions of the light beam propagating in the lightguide through one of the lightguide surfaces. Polarization beam-splitting slanted surfaces may be used to provide polarized output. Such an illuminator may be used with a reflective display panel operating by polarization. The beam-splitting slanted surfaces operate as a polarizer, providing polarized illuminating light. The light reflected by the reflective panel may propagate back through the illuminator, and the polarization beam-splitting slanted surfaces may operate also as analyzer.
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公开(公告)号：US11846774B2
公开(公告)日：2023-12-19
申请号：US17697592
申请日：2022-03-17
Applicant: Meta Platforms 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
IPC: G02B27/00 , G02B27/01 , G06F3/01 , G02F1/29 , F21V8/00 , G02B6/35 , G02F1/1335 , G09G3/00 , G09G3/34 , G06T7/246 , H04N23/56 , G02F1/335 , G03H1/02 , G06F1/16 , H04N23/698 , G01B11/22 , G01S7/4865 , G01S17/10 , G02B27/42 , G02F1/33 , G06T3/40 , G02B27/44 , G02B26/08 , H04N23/10
CPC classification number: G02B27/0093 , G01B11/22 , G01S7/4865 , G01S17/10 , G02B6/005 , G02B6/0016 , G02B6/0031 , G02B6/0035 , G02B6/0066 , G02B6/3518 , G02B26/0816 , G02B27/0081 , G02B27/0172 , G02B27/0179 , G02B27/4205 , G02B27/44 , G02F1/133504 , G02F1/133526 , G02F1/292 , G02F1/294 , G02F1/33 , G02F1/335 , G03H1/0248 , G06F1/163 , G06F3/013 , G06T3/4038 , G06T7/246 , G09G3/002 , G09G3/3413 , H04N23/56 , H04N23/698 , G02B2027/0105 , G02B2027/0138 , G02B2027/0174 , G02B2027/0178 , G02B2027/0187 , G06T2207/30201 , G09G2310/0235 , H04N23/10
Abstract: A pupil-replicating lightguide includes a slab of transparent material, a switchable out-coupling grating for out-coupling portions of image light to propagate towards an eyebox, and a switchable tracking grating for redirecting tracking light carrying an eye image towards an eye tracking camera. One of the two gratings may be turned ON while the other is turned OFF, in a time-sequential manner, allowing the combined use of the pupil-replicating lightguide for carrying image light and eye tracking light.
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公开(公告)号：US11796804B1
公开(公告)日：2023-10-24
申请号：US17706467
申请日：2022-03-28
Applicant: Meta Platforms Technologies, LLC
Inventor： Robin Sharma , Maxwell Parsons , Andrew John Ouderkirk , Sascha Hallstein
CPC classification number: G02B27/0093 , G02B27/017 , G06F3/013
Abstract: Illumination light is emitted from a light source. The illumination light is directed to an eyebox region via a lightguide. Illumination light and visible light beams are incoupled into the lightguide by a tiltable reflector. A tracking signal is generated with a sensor in response to a returning light becoming incident on the sensor.
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公开(公告)号：US11774753B1
公开(公告)日：2023-10-03
申请号：US17531301
申请日：2021-11-19
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Giuseppe Calafiore , Ningfeng Huang , Andrew Maimone , Andrew Ouderkirk , Hee Yoon Lee , Maxwell Parsons , Scott Charles McEldowney , Babak Amirsolaimani , Pasi Saarikko , Wanli Chi , Alexander Koshelev , Barry David Silverstein , Lu Lu , Wai Sze Tiffany Lam , Gang Li , Stephan Lutgen , Francois Gerard Franck Olivier , David Massoubre
CPC classification number: G02B27/0081 , G02B27/0172 , G02B27/0944 , G02B27/1086 , G02B27/44 , G02B2027/0145 , G02B2027/0152
Abstract: A waveguide assembly is provided. The waveguide assembly includes a pair of pupil-replicating waveguides. The first pupil-replicating waveguide is configured for receiving an input beam of image light and providing an intermediate beam comprising multiple offset portions of the input beam. The second pupil-replicating waveguide is configured for receiving the intermediate beam from the first pupil-replicating waveguide and providing an output beam comprising multiple offset portions of the intermediate beam. The input beam may be expanded by the waveguide assembly in such a manner that pupil gaps are reduced or eliminated.
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公开(公告)号：US11448906B1
公开(公告)日：2022-09-20
申请号：US16667689
申请日：2019-10-29
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Maxwell Parsons , Chloe Astrid Marie Fabien , Ningfeng Huang , Gareth Valentine , James Ronald Bonar
IPC: G02F1/03 , G02F1/07 , G02B6/122 , F21V9/40 , G09G3/34 , G02F1/01 , G02B6/10 , G02B27/01 , H01L33/50 , G09G3/00 , F21V9/00 , G02F1/13357 , B82Y20/00 , G09G3/32 , F21V8/00 , F21V9/08 , G02F1/1335
Abstract: A color converter device includes an array of color conversion regions. The array of color conversion regions includes color conversion regions of a first type and color conversion regions of a second type that is distinct from the color conversion regions of the first type. A respective color conversion region of the array of color conversion regions includes a respective photonic crystal structure defining a respective two-dimensional pattern. The respective color conversion region includes a respective color conversion matrix. The color conversion regions of the first type converts light of a first color into light of a second color that is distinct from the first color and the color conversion regions of the second type converts the light of the first color into light of a third color that is distinct from the first color and the second color.
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Patent Agency Ranking
公开(公告)号：US20230185011A1
公开(公告)日：2023-06-15
申请号：US17741404
申请日：2022-05-10
Applicant: Meta Platforms Technologies, LLC
Inventor： Zhujun Shi , Keith Patterson , Maxwell Parsons , Giuseppe Calafiore , Yongdan Hu , Zhimin Shi
IPC: F21V8/00 , G02F1/1343
CPC classification number: G02B6/0036 , G02F1/134309 , G02B6/0078 , G02F1/13439 , G02F2201/063 , G02F2201/302
Abstract: A self-lit display panel includes a photonic integrated circuit payer including an array of waveguides and an array of out-couplers for out-coupling portions of the illuminating light through pixels of the panel. The self-lit display panel may include a transparent electronic circuitry layer backlit by the photonic integrated circuit layer; the two layers may be on a same substrate or on opposed substrates defining a cell filled with an electro-active material. The configuration allows for chief ray engineering, zonal illuminating, and separate illumination with red, green, and blue illuminating light.
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7.发明授权公开(公告)号：US11448806B1
公开(公告)日：2022-09-20
申请号：US17202179
申请日：2021-03-15
Applicant: Meta Platforms Technologies, LLC
Inventor： Matthew E. Colburn , Giuseppe Calafiore , Matthieu Charles Raoul Leibovici , Maxwell Parsons
IPC: G02B5/18 , H01L21/308 , H01L21/306 , F21V8/00 , G02B27/01 , G03F7/00
Abstract: A lithographic patterning of a resist is performed to create a mandrel over a substrate. A deposition of one or more functional materials on the mandrel is performed. And each functional material has a respective refractive index. A selective removal of the mandrel is performed to create a plurality of grating elements formed from the one or more functional materials. The plurality of grating elements are self-aligned and form a diffraction grating. Each grating element may have a heterogenous refractive index (e.g., substantial normal to and/or parallel to a surface of the substrate). The diffraction grating may be used in a near-eye display.
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公开(公告)号：US11422369B1
公开(公告)日：2022-08-23
申请号：US15963239
申请日：2018-04-26
Applicant: Meta Platforms Technologies, LLC
Inventor： Maxwell Parsons , Giuseppe Calafiore , Wanli Chi
Abstract: A waveguide includes an input area, a multi-layered substrate, and an output area. The multi-layered substrate includes a plurality of layers of at least a substrate and at least one partially reflective layers. The input area in-couples light in a first band into the waveguide. The one or more partially reflective layers are partially reflective to light in the first band. Each of the one or more partially reflective layers are located between respective layers of the plurality of layers of the substrate. The output area out-couples light from the waveguide. The pupil replication density of the out-coupled light is based in part on a number of the one or more partially reflective layers and respective locations of the one or more partially reflective layers in the waveguide.
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公开(公告)号：US11860395B2
公开(公告)日：2024-01-02
申请号：US18129656
申请日：2023-03-31
Applicant: Meta Platforms Technologies, LLC
Inventor： Zhujun Shi , Keith Patterson , Maxwell Parsons , Yongdan Hu , Giuseppe Calafiore , Zhimin Shi
IPC: F21V8/00 , G02F1/1343
CPC classification number: G02B6/0036 , G02B6/0078 , G02F1/13439 , G02F1/134309 , G02F2201/063 , G02F2201/302
Abstract: A self-lit display panel includes a photonic integrated circuit payer including an array of waveguides and an array of out-couplers for out-coupling portions of the illuminating light through pixels of the panel. The self-lit display panel may include a transparent electronic circuitry layer backlit by the photonic integrated circuit layer; the two layers may be on a same substrate or on opposed substrates defining a cell filled with an electro-active material. The configuration allows for chief ray engineering, zonal illuminating, and separate illumination with red, green, and blue illuminating light.
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公开(公告)号：US20230236351A1
公开(公告)日：2023-07-27
申请号：US18129656
申请日：2023-03-31
Applicant: Meta Platforms Technologies, LLC
Inventor： Zhujun Shi , Keith Patterson , Maxwell Parsons , Yongdan Hu , Giuseppe Calafiore , Zhimin Shi
IPC: F21V8/00 , G02F1/1343
CPC classification number: G02B6/0036 , G02F1/13439 , G02F1/134309 , G02B6/0078 , G02F2201/302 , G02F2201/063
Abstract: A self-lit display panel includes a photonic integrated circuit payer including an array of waveguides and an array of out-couplers for out-coupling portions of the illuminating light through pixels of the panel. The self-lit display panel may include a transparent electronic circuitry layer backlit by the photonic integrated circuit layer; the two layers may be on a same substrate or on opposed substrates defining a cell filled with an electro-active material. The configuration allows for chief ray engineering, zonal illuminating, and separate illumination with red, green, and blue illuminating light.
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