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公开(公告)号:US20240411060A1
公开(公告)日:2024-12-12
申请号:US18798883
申请日:2024-08-09
Applicant: Meta Platforms Technologies, LLC
Inventor: Andrew John Ouderkirk , Nagi Hosni Elabbasi , Spencer Allan Wells , Christopher Stipe , Kenneth Alexander Diest , Christopher Yuan Ting Liao , Liliana Ruiz Diaz , Laura Cressman , Taha Masood , James Howard Thomas Ransley
IPC: G02B3/14
Abstract: A liquid lens includes a substrate, a transparent elastic membrane forming a cavity with the substrate, and a transparent fluid filling the cavity between the substrate and the membrane. The membrane has a pre-distorted, rotationally asymmetric shape in absence of the fluid in the cavity. When the cavity is filled with the fluid and the substrate is disposed vertically w.r.t. gravity at a pre-defined clocking angle, the membrane adopts a substantially rotationally symmetric shape due to elasticity of the membrane counteracting gravity exerting a downward force on the fluid in the cavity, reducing the effect of the gravity sag on optical performance of the liquid lens.
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公开(公告)号:US12074408B2
公开(公告)日:2024-08-27
申请号:US16654331
申请日:2019-10-16
Applicant: META PLATFORMS TECHNOLOGIES, LLC
CPC classification number: H01S5/026 , G02B27/0093 , H01S5/1078 , H01S5/183 , H01S5/18347 , H01S2301/02
Abstract: A light source structure includes a vertical cavity surface-emitting laser (VCSEL) device having a top surface and at least one side surface substantially perpendicular to and adjoining the top surface. The VCSEL device is configurable to output directed emission of light through the top surface. The light source structure also includes a light barrier surrounding at least a top portion of the VCSEL device and separated from the at least one side surface. The light barrier is configured to receive spontaneous emission out of the VCSEL device through the at least one side surface.
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公开(公告)号:US20240026099A1
公开(公告)日:2024-01-25
申请号:US18061843
申请日:2022-12-05
Applicant: Meta Platforms Technologies, LLC
Inventor: Hao Mei , Arman Boromand , Sheng Ye , Christopher Yuan Ting Liao , Rongzhi Huang , Andrew John Ouderkirk
CPC classification number: C08J5/18 , B29C48/022 , C08F10/02 , C08L23/06 , C09K5/14 , B29K2023/06 , B29C48/0011 , B29C48/0018 , B29C48/08
Abstract: A polymer thin film includes polyethylene having a molecular weight of at least approximately 250,000 g/mol, and has an elastic modulus of at least approximately 25 GPa, a tensile strength of at least approximately 0.8 GPa, and a thermal conductivity of at least approximately 5 W/mK. Formation of the polymer thin film may include forming a polymer solution from a crystallizable polyethylene and a liquid solvent, forming a gel from the polymer solution, forming a polymer thin film from the gel by calendering or solid state extrusion, and stretching the polymer thin film.
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公开(公告)号:US20230176443A1
公开(公告)日:2023-06-08
申请号:US17899818
申请日:2022-08-31
Applicant: Meta Platforms Technologies, LLC
Inventor: Renate Eva Klementine Landig , Andrew John Ouderkirk , Sheng Ye , Christopher Yuan Ting Liao , Jonathan Robert Peterson , Nagi Hosni Elabbasi , Hongtao Guo , Hsin-Ying Chiu , Matthew James Hancock , Li Yao
IPC: G02F1/29
CPC classification number: G02F1/29
Abstract: A fluidic optical element includes a fluid bilayer having a first fluid layer and a second fluid layer defining a fluid interface therebetween, and an electrode disposed over a surface of the fluid bilayer. The geometry of the fluid interface and hence the optical response of the fluid bilayer to incident light may be manipulated using the principle of dielectrophoresis.
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公开(公告)号:US12092844B2
公开(公告)日:2024-09-17
申请号:US17193921
申请日:2021-03-05
Applicant: Meta Platforms Technologies, LLC
Inventor: Andrew John Ouderkirk , Nagi Hosni Elabbasi , Spencer Allan Wells , Christopher Stipe , Kenneth Alexander Diest , Christopher Yuan Ting Liao , Liliana Ruiz Diaz , Laura Cressman , Taha Masood , James Howard Thomas Ransley
IPC: G02B3/14
CPC classification number: G02B3/14
Abstract: A liquid lens includes a substrate, a transparent elastic membrane forming a cavity with the substrate, and a transparent fluid filling the cavity between the substrate and the membrane. The membrane has a pre-distorted, rotationally asymmetric shape in absence of the fluid in the cavity. When the cavity is filled with the fluid and the substrate is disposed vertically w.r.t. gravity at a pre-defined clocking angle, the membrane adopts a substantially rotationally symmetric shape due to elasticity of the membrane counteracting gravity exerting a downward force on the fluid in the cavity, reducing the effect of the gravity sag on optical performance of the liquid lens.
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公开(公告)号:US12031019B2
公开(公告)日:2024-07-09
申请号:US17554982
申请日:2021-12-17
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor: Sheng Ye , Andrew John Ouderkirk , Arman Boromand , Christopher Stipe , Hao Mei , Christopher Yuan Ting Liao
CPC classification number: C08L23/06 , C08K3/014 , C08K5/01 , C08L2207/066
Abstract: An optically clear, high strength, high modulus, and high thermal conductivity polyethylene thin film may be formed from a crystallizable polymer and an additive configured to interact with the crystallizable polymer to facilitate crystallite alignment and, in some examples, create a higher crystalline content within the polyethylene thin film. The polyethylene thin film may be characterized by a bimodal molecular weight distribution where the molecular weight of the additive may be less than approximately 5% of the molecular weight of the crystallizable polymer. Example crystallizable polymers may include high molecular weight polyethylene, high density polyethylene, and ultra-high molecular weight polyethylene. Example additives may include low molecular weight polyethylene and polyethylene oligomers. The polyethylene thin film may be characterized by a Young's modulus of at least approximately 10 GPa, a tensile strength of at least approximately 0.7 GPa, and a thermal conductivity of at least approximately 5 W/mK.
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公开(公告)号:US20240084121A1
公开(公告)日:2024-03-14
申请号:US18174920
申请日:2023-02-27
Applicant: Meta Platforms Technologies, LLC
Inventor: Sheng Ye , Jinghui Yang , Rui Jian , Hao Mei , Andrew John Ouderkirk , Christopher Yuan Ting Liao , Stephen Hsieh , Alexander Keener , Jonathan Robert Peterson
CPC classification number: C08L27/12 , B29C48/022 , H10N30/857 , B29K2027/12 , C08L2203/16 , C08L2205/16
Abstract: A mechanically and piezoelectrically anisotropic polymer article is formed from a crystallizable fluoropolymer and a nucleating agent. The polymer article may be a thin film or a fiber, for example. A crystalline phase may constitute at least approximately 50% of the polymer article. In certain examples, a fluoropolymer may include vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, hexafluoropropylene, and vinyl fluoride. The polymer article may include up to approximately 10 wt. % of the nucleating agent. Such a polymer article is optically transparent, has an elastic modulus of at least approximately 3 GPa, and an electromechanical coupling factor (k31) of at least approximately 0.15.
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公开(公告)号:US11860358B2
公开(公告)日:2024-01-02
申请号:US17878634
申请日:2022-08-01
Applicant: Meta Platforms Technologies, LLC
Inventor: Liliana Ruiz Diaz , Ruiting Huang , Robin Sharma , Jonathan Robert Peterson , Christopher Yuan Ting Liao , Andrew John Ouderkirk , Giancarlo Sigurd Sante Nucci , Clare Joyce Robinson
CPC classification number: G02B27/0093 , G02B27/0179 , G02B2027/0187
Abstract: Angular sensors that may be used in eye-tracking systems are disclosed. An eye-tracking system may include a plurality of light sources to emit illumination light and a plurality of angular light sensors to receive returning light that is the illumination light reflecting from an eyebox region. The angular light sensors may output angular signals representing an angle of incidence of the returning light.
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公开(公告)号:US11810908B2
公开(公告)日:2023-11-07
申请号:US17326777
申请日:2021-05-21
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor: Christopher Yuan Ting Liao , Maik Andre Scheller , Jonathan Robert Peterson , Ehsan Vadiee , John Goward , Anurag Tyagi , Andrew John Ouderkirk
IPC: H01L25/16 , H01L31/02 , H01L31/0224 , H01L31/04 , H01L31/18
CPC classification number: H01L25/167 , H01L31/02021 , H01L31/022425 , H01L31/04 , H01L31/18
Abstract: A method of forming a high voltage optical transformer includes forming a via through a transparent carrier wafer, forming a conductive layer within the via, bonding a solid state lighting (SSL) package to a first side of the carrier wafer, and bonding a photovoltaic (PV) wafer to a second side of the carrier wafer opposite to the first side. The photovoltaic wafer may include an active area and a conductive area located outside of the active area that is in electrical contact with the conductive layer. The method further includes forming both an SSL contact with the solid state lighting package and a PV contact with the conductive layer on the same side of the carrier wafer.
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公开(公告)号:US11803024B2
公开(公告)日:2023-10-31
申请号:US17374932
申请日:2021-07-13
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor: Jonathan Robert Peterson , John Goward , Maik Andre Scheller , Andrew John Ouderkirk , Christopher Yuan Ting Liao , Giuseppe Calafiore , Alexander Koshelev
CPC classification number: G02B6/4298 , G02B5/3025 , G02B26/0833 , G06F3/014 , G06F3/016
Abstract: A device includes a light source to emit light and a light detector to receive the light emitted by the light source. The device may include a high voltage optical transformer and may be configured such that the light detector is laterally spaced away from the light source. In some architectures, the light source and the light detector may be arranged in a common plane. A photonic integrated circuit may be used to couple light emitted from the light source to the light detector.
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