公开(公告)号：US20250052926A1

公开(公告)日：2025-02-13

申请号：US18903224

申请日：2024-10-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Tingling Rao ,  Tanya Malhotra ,  Andrew John Ouderkirk ,  Lafe Joseph Purvis, II ,  Sandeep Rekhi ,  Arman Boromand ,  Sheng Ye ,  Oleg Yaroshchuk ,  Anurag Tyagi

IPC: G02B1/04 ,  C09D5/00 ,  C09D7/45 ,  C09D7/63 ,  C30B29/54 ,  G02B1/02 ,  G02B1/10 ,  G02B5/30

Abstract: An optical film includes an organic solid crystal film formed of a contiguous organic solid crystal having a first dimension no less than 100 micrometer and a second dimension distinct from the first dimension no less than one centimeter. Methods for making the organic solid crystal film are also described.

公开(公告)号：US12214541B2

公开(公告)日：2025-02-04

申请号：US17730371

申请日：2022-04-27

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Arman Boromand ,  Andrew John Ouderkirk ,  Sheng Ye ,  Christopher Yuan Ting Liao

IPC: B29C55/14 ,  B29C43/00 ,  B29C43/24 ,  B29C55/00 ,  B29K23/00 ,  B29L7/00

Abstract: A method includes applying a stress to a polymer thin film to stretch the polymer thin film along a first in-plane direction, and subsequently applying a stress to the polymer thin film to stretch the polymer thin film along a second in-plane direction orthogonal to the first in-plane direction to form an ultra-high modulus polymer thin film. Calendaring or hot pressing of the ultra-high modulus polymer thin film may improve its optical and/or thermal properties.

公开(公告)号：US11987677B2

公开(公告)日：2024-05-21

申请号：US17559655

申请日：2021-12-22

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Sheng Ye ,  Hao Mei ,  Cody Wayne Weyhrich ,  Arman Boromand ,  Andrew John Ouderkirk ,  Christopher Yuan Ting Liao ,  Emma Rae Mullen ,  Christopher Stipe ,  Nagi Hosni Elabbasi ,  Rui Jian

IPC: C08L27/16 ,  C08J5/18 ,  C08L27/14 ,  C08L27/04 ,  C08L27/12

CPC classification number: C08J5/18 ,  C08L27/16 ,  C08J2427/16 ,  C08L27/04 ,  C08L27/12 ,  C08L27/14 ,  C08L2201/10 ,  C08L2203/16 ,  C08L2205/02

Abstract: A mechanically and piezoelectrically anisotropic polymer thin film is formed from a crystallizable polymer and an additive configured to interact with the polymer to facilitate chain alignment and, in some examples, create a higher crystalline content within the polymer thin film. The polymer thin film and its method of manufacture 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 polymers may include vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, hexafluoropropylene, and vinyl fluoride. Example additives may occupy up to approximately 60 wt. % of the polymer thin film. The polymer thin film may be characterized by a piezoelectric coefficient (d31) of at least approximately 5 pC/N or an electromechanical coupling factor (k31) of at least approximately 0.1.

公开(公告)号：US20240069404A1

公开(公告)日：2024-02-29

申请号：US18298662

申请日：2023-04-11

Applicant: Meta Platforms Technologies, LLC

Inventor： Dmytro Y. Reznikov ,  Afsoon Jamali ,  Arman Boromand ,  Robin Sharma

IPC: G02F1/29

CPC classification number: G02F1/29

Abstract: A system includes (a) an optical device having a GRIN LC lens, the GRIN LC lens including a liquid crystal layer, (b) a sensor configured to assess an attribute of the liquid crystal layer, (c) a heat source, and (d) a controller configured to mediate heat flow between the heat source and the liquid crystal layer based on a signal provided by the sensor.

公开(公告)号：US20230194764A1

公开(公告)日：2023-06-22

申请号：US18048983

申请日：2022-10-24

Applicant: Meta Platforms Technologies, LLC

Inventor： Lafe Joseph Purvis, II ,  Tingling Rao ,  Andrew John Ouderkirk ,  Arman Boromand ,  Kimberly Kay Childress ,  Ehsan Vadiee ,  Namseok Park ,  Poer Sung

IPC: G02B5/30 ,  G02B5/18

CPC classification number: G02B5/3083 ,  G02B5/1823

Abstract: A birefringent organic thin film includes mutually orthogonal in-plane refractive indices (nx and ny) and a through thickness refractive index (nz), where nx>1.4, ny≥1.4, nz>1.4, Dnxy≥0.1, Dnxz

公开(公告)号：US20220342121A1

公开(公告)日：2022-10-27

申请号：US17704466

申请日：2022-03-25

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Tingling Rao ,  Xingzhou Tu ,  Lafe Joseph Purvis, II ,  Arman Boromand ,  Kimberly Kay Childress ,  Andrew John Ouderkirk ,  Ying Geng ,  Poer Sung

IPC: G02B1/04 ,  G02B3/08 ,  G02B27/01 ,  G02B1/02 ,  B29D11/00

Abstract: An optical element (e.g., a lens) may include an optically uniaxial or optically biaxial organic solid, for example, an organic molecular solid. The direction of a maximum refractive index of the organic solid may be aligned substantially orthogonal to an optical axis of the lens. In some examples, a device may include a display and an optical configuration configured to receive light from the display and direct the light to a remote view location. In some examples, the optical configuration may comprise a lens and at least one surface of the lens may include a plurality of facets, for example, to form a Fresnel lens.

公开(公告)号：US20240361085A1

公开(公告)日：2024-10-31

申请号：US18388801

申请日：2023-11-10

Applicant: Meta Platforms Technologies, LLC

Inventor： Brian Toleno ,  Michael Nikkhoo ,  Kiarash Vakhshouri ,  Ustun Duman ,  Arman Boromand

IPC: F28D15/04 ,  F28F21/00

CPC classification number: F28D15/04 ,  F28F21/006

Abstract: An elongated heat pipe or vapor chamber is described. In examples, the heat pipe may include a tubular body comprising a hollow glass tube or fiber. The heat pipe may further include a wick within the tubular body and a working fluid within the tubular body. The wick may be made of glass, polymer, metal, etc. The wick may be an elongated cylinder disposed within the tubular body and, some cases, may be bonded to an inner floor of the tubular body. In examples, the wick may have an outer diameter substantially equal to an inner diameter of the tubular body. In examples, the wick may have a substantially cross-shaped cross section or may have a helical shape.

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

IPC: C08L23/06 ,  C08K3/014 ,  C08K5/01

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.

公开(公告)号：US20240077779A1

公开(公告)日：2024-03-07

申请号：US18462265

申请日：2023-09-06

Applicant: Meta Platforms Technologies, LLC

Inventor： Xi Wu ,  Olga Vladimirovna Barykina-Tassa ,  Arman Boromand ,  Afsoon Jamali ,  Frank Leard ,  Jonathan William Onorato ,  Gareth Valentine

IPC: G02F1/155 ,  G02F1/1523

CPC classification number: G02F1/155 ,  G02F1/1525 ,  G02F2001/1557

Abstract: An optical device includes a first set of one or more electrodes, a second set of one or more electrodes distinct and separate from the first set of one or more electrodes, and a solution containing transparent metal ions in a liquid or gel electrolyte. The solution is located between the first set of one or more electrodes and the second set of one or more electrodes. The optical device may operate as an optical dimming device, which may be used in head-mounted display devices or as dimmable windows or shutters.

公开(公告)号：US11796716B1

公开(公告)日：2023-10-24

申请号：US17384332

申请日：2021-07-23

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Sheng Ye ,  Li Yao ,  Tingling Rao ,  Lafe Joseph Purvis, II ,  Tanya Malhotra ,  Andrew John Ouderkirk ,  Arman Boromand

IPC: G02F1/1333 ,  G02B1/08 ,  C09K19/02 ,  G02B5/30 ,  C09K19/38 ,  G02F1/1335

CPC classification number: G02B1/08 ,  C09K19/02 ,  C09K19/38 ,  G02B5/3025 ,  G02F1/133526 ,  G02F1/133528 ,  C09K2219/03 ,  C09K2323/031 ,  G02F2202/022

Abstract: An optical film includes a block copolymer film defining a plurality of helically shaped cavities and a plurality of helically shaped organic solid crystals positioned within the plurality of helically shaped cavities. A method of making the optical film includes obtaining a film of a block copolymer solution including a chiral block copolymer and a non-chiral block copolymer on a substrate. The method includes annealing the film, thereby forming a plurality of helical structures from the chiral block copolymer defined within the non-chiral block copolymer and removing the plurality of helical structures, thereby creating a plurality of helically shaped cavities. The method further includes forming organic solid crystals inside the plurality of helically shaped cavities, thereby forming the optical film.