公开(公告)号：US20230279585A1

公开(公告)日：2023-09-07

申请号：US18149596

申请日：2023-01-03

Applicant: Meta Platforms Technologies, LLC

Inventor： Sheng Ye ,  Jing Chen ,  Hao Mei ,  Andrew John Ouderkirk ,  Arman Boromand ,  Kristy Alana Jost ,  Nagi Hosni Elabbasi ,  Jonathan Robert Peterson ,  Christopher Yuan Ting Liao

IPC: D01D5/00 ,  C08J5/18 ,  G02B27/01

CPC classification number: D01D5/0038 ,  C08J5/18 ,  G02B27/017 ,  C08J2327/12 ,  G02B2027/0178

Abstract: Mechanically and piezoelectrically anisotropic polymer fibers may be formed by spinning a polymer solution or gel that includes a high molecular weight crystallizable polymer and a liquid solvent. The solvent may be configured to interact with the polymer to facilitate chain alignment and, in some examples, create a higher crystalline content within the spun fibers. The polymer solution may also include a low molecular weight additive. The high and low molecular weight polymers may each be characterized by a bimodal molecular weight distribution where the molecular weight of the additive is less than the molecular weight of the crystallizable polymer. The polymer(s) and the additive(s) may be independently selected from vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, hexafluoropropene, vinyl fluoride, etc. The spun fibers may be oriented, annealed, poled, and woven or laminated to form a polymer thin film having a high elastic modulus and a high electromechanical coupling factor.

公开(公告)号：US11740391B1

公开(公告)日：2023-08-29

申请号：US17139273

申请日：2020-12-31

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Jonathan Robert Peterson ,  Kenneth Alexander Diest ,  Renate Eva Klementine Landig ,  Liliana Ruiz Diaz ,  Robin Sharma

IPC: G02B3/14 ,  G02B26/00

CPC classification number: G02B3/14 ,  G02B26/004

Abstract: Disclosed devices may include a membrane having a membrane curvature, a substrate, an enclosure (defined at least in part by the membrane and the substrate) enclosing a fluid, a peripheral structure configured to adjust the membrane curvature, and a sensor configured to provide a sensor signal that is a function of the membrane curvature. The device may also include a controller configured to control the membrane curvature using a control signal. For example, the control signal may be provided to at least one actuator. The controller may receive a sensor signal from the sensor and modify the control signal based on the sensor signal. Examples also include associated methods and systems.

公开(公告)号：US11693443B2

公开(公告)日：2023-07-04

申请号：US17733971

申请日：2022-04-29

Applicant: Meta Platforms Technologies, LLC

Inventor： Jonathan Robert Peterson ,  Andrew John Ouderkirk ,  Maik Andre Scheller ,  Christopher Yuan-Ting Liao

IPC: G05F1/00 ,  G05F1/625 ,  H02S40/30

CPC classification number: G05F1/625 ,  H02S40/30

Abstract: A configuration circuit may be used with a power converter. The configuration circuit dynamically reconfigures one or more connections of output stages of a power converter to vary the output. A capacitive load may receive the output of the power converter.

公开(公告)号：US20230053107A1

公开(公告)日：2023-02-16

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

IPC: G02B27/00 ,  G02B27/01

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.

公开(公告)号：US11563137B2

公开(公告)日：2023-01-24

申请号：US16594346

申请日：2019-10-07

Applicant: Meta Platforms Technologies, LLC

Inventor： Maik Andre Scheller ,  Andrew John Ouderkirk ,  Jonathan Robert Peterson ,  Daniele Piazza ,  Jeremy Thomas Braun ,  Kenneth Diest ,  Spencer Allan Wells ,  Renate Eva Klementine Landig ,  Liliana Ruiz Diaz ,  Tanya Malhotra

IPC: H01L31/167 ,  H02N2/04 ,  H01L31/044 ,  H01L31/05

Abstract: An optical transformer includes a light source and an array of photovoltaic cells optically coupled to the light source, where at least a portion of the photovoltaic cells are connected in series. An optical connector such as a waveguide or an optical fiber may be disposed between an output of the light source and an input of the array of photovoltaic cells. Configured to generate a high voltage output, the optical transformer may be configured to power a device such as an actuator that provides a tunable displacement as a function of voltage.

公开(公告)号：US11540033B2

公开(公告)日：2022-12-27

申请号：US17243347

申请日：2021-04-28

Applicant: Meta Platforms Technologies, LLC

Inventor： Maik Andre Scheller ,  Jonathan Robert Peterson ,  Morteza Khaleghimeybodi

IPC: H04R1/02 ,  H04R17/00 ,  H05K5/00

Abstract: A transducer is described that includes a substrate configured to be deposited on a solid object, and a transparent medium coupled to the substrate and configured to oscillate at a pre-selected frequency upon receipt of an electrical excitation or a mechanical excitation and to provide a first acoustic wave. The transducer also includes an actuator configured to receive an electrical power, and to provide the electrical excitation or the mechanical excitation to the transparent medium, wherein at least a portion of the solid object is viewable through the transparent medium, and the first acoustic wave is at least partially transmitted through an interface of the transparent medium. A system and a non-transitory, computer-readable medium storing instructions to cause the system to perform a method to use the transducer for generating acoustic waves in a transparent medium are also disclosed.

公开(公告)号：US11431236B2

公开(公告)日：2022-08-30

申请号：US16996588

申请日：2020-08-18

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Maik Andre Scheller ,  Christopher Yuan Ting Liao ,  Jonathan Robert Peterson ,  Andrew John Ouderkirk

IPC: H02M1/00 ,  H01S3/106 ,  H03F3/08 ,  G02B19/00

Abstract: An optical transformer includes a plurality of light emitters, a plurality of photovoltaic cells positioned to receive light from at least a first subset of the plurality of light emitters, the plurality of photovoltaic cells including at least a first photovoltaic cell and a second photovoltaic cell, and one or more optically triggered switches positioned to receive light from at least a second subset of the plurality of light emitters, the one or more optically triggered switches including at least a first optically triggered switch electrically coupled to the first photovoltaic cell and the second photovoltaic cell. A method of operating the optical transformer is also described.

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

IPC: C08L27/12 ,  B29C48/00 ,  B29K27/12

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.

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

IPC: G02B27/00 ,  G02B27/01

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.

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.