公开(公告)号：US20230194951A1

公开(公告)日：2023-06-22

申请号：US18048991

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

IPC: G02F1/295

CPC classification number: G02F1/2955

Abstract: An optical diffraction grating includes a layer of organic solid crystal (OSC) material, an input photonic element configured to couple an input beam to the organic solid crystal material, and an output photonic element configured to receive an output beam from the organic solid crystal material. An applied voltage may be used to control the refractive index of the OSC material and accordingly tune the operation of the optical diffraction grating.

公开(公告)号：US20230166481A1

公开(公告)日：2023-06-01

申请号：US17873578

申请日：2022-07-26

Applicant: Meta Platforms Technologies, LLC

Inventor： Arman Boromand ,  Andrew John Ouderkirk ,  Sheng Ye ,  Christopher Yuan Ting Liao ,  Rongzhi Huang ,  Hao Mei

IPC: B32B7/035 ,  C08J5/12 ,  G02B27/01 ,  B32B7/12 ,  B32B17/10 ,  B32B27/08 ,  B32B27/32 ,  B32B27/36 ,  B29C55/02

CPC classification number: B32B7/035 ,  C08J5/124 ,  C08J5/121 ,  G02B27/0172 ,  B32B7/12 ,  B32B17/10 ,  B32B27/08 ,  B32B27/32 ,  B32B27/365 ,  B32B27/325 ,  B29C55/023 ,  C08J2323/06 ,  G02B2027/0178 ,  B32B2250/40 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/514 ,  B32B2264/0257 ,  B32B2307/412 ,  B32B2307/732 ,  B32B2307/54 ,  B32B2315/08 ,  B32B2323/043 ,  B32B2369/00 ,  B32B2457/20 ,  B29K2023/0683

Abstract: A polymer multilayer includes two or more laminated layers of ultra-drawn, ultra-high molecular weight polyethylene or high density polyethylene. A transparent laminated structure may include such a polymer multilayer disposed between a pair of transparent substrates. The polymer multilayer may be configured to induce a compressive stress in a near surface region of each transparent substrate, which may improve the toughness and fracture resistance of the laminated structure. A photothermal dye may be incorporated into the polymer matrix and the compressive stresses may be achieved using photothermal actuation of the dye-containing polyethylene layers.

公开(公告)号：US11628656B2

公开(公告)日：2023-04-18

申请号：US17514298

申请日：2021-10-29

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

IPC: B32B27/20 ,  B32B27/08 ,  B29C48/00 ,  B29C48/08 ,  B32B7/023 ,  B29C48/21 ,  B29L9/00 ,  B29L7/00

Abstract: An optically anisotropic polymer thin film includes a crystallizable polymer and an additive configured to interact with the polymer (e.g., via π-π interactions) to facilitate chain alignment and, in some examples, create a higher crystalline content within the polymer thin film. The polymer thin film may be characterized by a bimodal molecular weight distribution where the molecular weight of the additive may be less than approximately 50% of the molecular weight of the crystallizable polymer. Example crystallizable polymers include polyethylene naphthalate, polyethylene terephthalate, polybutylene naphthalate, polybutylene terephthalate, as well as derivatives thereof. Example additives, which may occupy up to approximately 10 wt. % of the polymer thin film, include aromatic ester oligomers, aromatic amide oligomers, and polycyclic aromatic hydrocarbons, for example. The optically anisotropic polymer thin film may be characterized by a refractive index greater than approximately 1.7 and an in-plane birefringence greater than approximately 0.2.

公开(公告)号：US20220385796A1

公开(公告)日：2022-12-01

申请号：US17879688

申请日：2022-08-02

Applicant: Meta Platforms Technologies, LLC

Inventor： Samuel Tam ,  Jianer Bao ,  Alexander Hsing ,  Alejandra Alvarez Albarran ,  Jake Fine ,  Dong Rim Lee ,  Arman Boromand ,  Alex Ockfen

IPC: H04N5/225 ,  H01L27/146

Abstract: A camera device for integration into a wearable device is presented. The camera device includes an image sensor, a lens assembly, a first high density interconnect (HDI) tape substrate, a second HDI tape substrate, and a molded plastic layer. The molded plastic layer is sandwiched between the first and second HDI tape substrates. A wearable device with at least one soft electrode is further presented. The at least one soft electrode includes a conductive coating applied to an elastomer substrate and monitors electrical signals generated by a wearer of the wearable device to initiate an appropriate action. A method of forming an aggregate coating for a wearable device is further presented. One or more thin films are applied to a surface of the wearable device, and a paint coating is applied to a surface of the one or more thin films to form the aggregate coating.

公开(公告)号：US20220350065A1

公开(公告)日：2022-11-03

申请号：US17582580

申请日：2022-01-24

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Tingling Rao ,  Yuge Huang ,  Lafe Joseph Purvis, II ,  Kimberly Kay Childress ,  Arman Boromand ,  Tanya Malhotra ,  Andrew John Ouderkirk ,  Lu Lu ,  Poer Sung

IPC: G02B5/30 ,  C30B29/54 ,  C30B7/14 ,  B29D11/00

Abstract: A multilayer organic thin film includes a plurality of biaxially-oriented layers, where each layer is characterized by mutually orthogonal refractive indices, n1≠n2≠n3. In example structures, the corresponding in-plane refractive indices of adjacent layers may be rotated with respect to each other by a predetermined angle. Such a multilayer may be incorporated into a circular reflective polarizer, for example, which may be used in display systems to provide high broadband efficiency and high off-axis contrast. In an example process, individual organic thin films may be molded, and then oriented and stacked to form a multilayer.

公开(公告)号：US20240240007A1

公开(公告)日：2024-07-18

申请号：US18454499

申请日：2023-08-23

Applicant: Meta Platforms Technologies, LLC

Inventor： Sheng Ye ,  Abhirup Dutta ,  Hao Mei ,  Lafe Joseph Purvis, II ,  Arman Boromand ,  Jing Chen ,  Andrew John Ouderkirk ,  Kristy Alana Jost

IPC: C08L27/16 ,  B29C71/00 ,  B29C71/02

CPC classification number: C08L27/16 ,  B29C71/0081 ,  B29C71/02 ,  B29C2071/022 ,  B29K2027/16

Abstract: A polymer article includes an at least partially disentangled polyvinylidene fluoride (PVDF) family member composition and is characterized by an elastic modulus of at least 4 GPa and an electromechanical coupling factor (k31) of at least 0.1 at room temperature. A method of manufacturing such a polymer article may include forming an at least partially disentangled polymer composition into a polymer thin film or fiber, applying a tensile stress to the polymer article in an amount effective to induce a stretch ratio of at least approximately 5 in the thin film or fiber, and applying an electric field across a thickness dimension of the polymer article. Annealing and poling steps may separately or simultaneously accompany and/or follow the act of stretching.

公开(公告)号：US12024793B2

公开(公告)日：2024-07-02

申请号：US17676940

申请日：2022-02-22

Applicant: META PLATFORMS TECHNOLOGIES, LLC

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

IPC: C30B29/64 ,  C30B19/10 ,  C30B29/54 ,  C30B35/00

CPC classification number: C30B29/54 ,  C30B19/106 ,  C30B29/64 ,  C30B35/002

Abstract: An organic thin film includes an organic crystalline phase, where the organic crystalline phase defines a surface having a surface roughness (Ra) of less than approximately 10 micrometers over an area of at least approximately 1 cm2. The organic thin film may be manufactured from an organic precursor and a non-volatile medium material that is configured to mediate the surface roughness of the organic crystalline phase during crystal nucleation and growth. The thin film may be formed using a suitably shaped mold, for example, and the non-volatile medium material may be disposed between a layer of the organic precursor and the mold during processing.

公开(公告)号：US20240105410A1

公开(公告)日：2024-03-28

申请号：US18476286

申请日：2023-09-27

Applicant: Meta Platforms Technologies, LLC

Inventor： Afsoon Jamali ,  Arman Boromand ,  Gareth John Valentine ,  Martin Schubert ,  Paul Murray LeFebvre ,  Francis Lawrence Leard ,  Olga Vladimirovna Barykina-Tassa

IPC: H01H61/013 ,  G02B27/01 ,  G02F1/13 ,  H01H61/02

CPC classification number: H01H61/013 ,  G02B27/0172 ,  G02F1/132 ,  H01H61/02 ,  G02B2027/0118

Abstract: An optical device includes a first optically dimmable switch for providing a first transmittance while the first optically dimmable switch is in a first state and providing a second transmittance distinct from the first transmittance while the first optically dimmable switch is in a second state distinct from the first state. The optical device also includes a dynamic heat source thermally coupled with the first optically dimmable switch. The dynamic heat source is at a first temperature at a first time and is at a second temperature distinct from the first temperature at a second time mutually exclusive from the first time. 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：US20230193505A1

公开(公告)日：2023-06-22

申请号：US18051236

申请日：2022-10-31

Applicant: Meta Platforms Technologies, LLC

Inventor： Tingling Rao ,  Kimberly Kay Childress ,  Arman Boromand ,  Lafe Joseph Purvis, II ,  Ryan Crisp ,  Keith Eugene Hoffman ,  Namseok Park ,  Andrew John Ouderkirk

IPC: C30B1/10 ,  C30B29/54

CPC classification number: C30B1/10 ,  C30B29/54

Abstract: A method of forming an organic solid crystal (OSC) thin film includes forming a layer of molecular feedstock over a surface of a substrate, the molecular feedstock including an organic solid crystal precursor, forming crystal nuclei from the organic solid crystal precursor within a nucleation region of the layer of molecular feedstock, and growing the crystal nuclei to form the organic solid crystal thin film.

公开(公告)号：US20230173741A1

公开(公告)日：2023-06-08

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 ,  B29C55/00 ,  B29C43/24 ,  B29C43/00

CPC classification number: B29C55/14 ,  B29C55/005 ,  B29C43/24 ,  B29C43/003 ,  B29K2023/0658

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.