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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
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.
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公开(公告)号：US20220350064A1
公开(公告)日：2022-11-03
申请号：US17488865
申请日：2021-09-29
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Andrew John Ouderkirk , Nagi Hosni Elabbasi , Sheng Ye , Christopher Yuan Ting Liao , Hannah Noble
Abstract: An optically or mechanically anisotropic polymer thin film is characterized by compound curvature, where a maximum variation of an angle of orientation of an extraordinary axis of the polymer thin film is at most 2% greater than an orientation variation associated with an initially planar polymer thin film formed to the same compound curvature.
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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：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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5.发明申请公开(公告)号：US20220348748A1
公开(公告)日：2022-11-03
申请号：US17669157
申请日：2022-02-10
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Christopher Stipe , Andrew John Ouderkirk , Eugene Cho , Sheng Ye , Arman Boromand , Alex Ockfen , Nagi Hosni Elabbasi
Abstract: A polymer thin film includes polyethylene having a weight average molecular weight of at least approximately 500,000 g/mol, where the thin film is characterized by transparency within the visible spectrum of at least approximately 80%, bulk haze of less than approximately 5%, and an in-plane elastic modulus of at least approximately 10 GPa. The polymer thin film may be thermally conductive and may be incorporated into an optical element and configured to dissipate heat, such as from a light-emitting device.
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Patent Agency Ranking
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：US20240219805A1
公开(公告)日：2024-07-04
申请号：US18149594
申请日：2023-01-03
Applicant: Meta Platforms Technologies, LLC
IPC: G02F1/29
CPC classification number: G02F1/29 , G02F2201/12
Abstract: A fluidic optical element includes a bilayer having a fluid layer and a gel layer directly overlying the fluid layer, and a primary electrode disposed over a surface of the bilayer. The geometry of an interface between the fluid layer and the gel layer and hence the optical response of the bilayer to incident light may be manipulated using the principle of dielectrophoresis.
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公开(公告)号：US20240116238A1
公开(公告)日：2024-04-11
申请号：US18191369
申请日：2023-03-28
Applicant: Meta Platforms Technologies, LLC
Inventor： Andrew John Ouderkirk , Nagi Hosni Elabbasi , Sheng Ye , Arman Boromand , Jing Chen
IPC: B29C55/08
CPC classification number: B29C55/08 , B29K2995/0041 , B29K2995/0051
Abstract: A method of forming a uniaxially oriented crystalline polymer article includes heating a segment of a crystallizable polymer article to a first temperature, applying a stress to the crystallizable polymer article in an amount effective to induce a positive strain within the segment of the crystallizable polymer article, and heating the segment of the crystallizable polymer article to a second temperature greater than the first temperature while continuing to apply the stress.
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公开(公告)号：US20230367041A1
公开(公告)日：2023-11-16
申请号：US17744265
申请日：2022-05-13
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Andrew John Ouderkirk , Nagi Hosni Elabbasi , Liliana Ruiz Diaz , Sheng Ye , Ying Geng , Christopher Yuan Ting Liao , Taha Masood , Brent Bollman
CPC classification number: G02B3/08 , G02B1/111 , G02B27/0172 , G02B27/283
Abstract: An example apparatus may include a display and an optical configuration configured to provide an image of a display, for example, in a head-mounted device. The optical configuration may include a Fresnel lens assembly including a Fresnel lens and a reflective polarizer. The Fresnel lens may have a structured surface including a plurality of facets, and there may be a step between pairs of neighboring facets. The reflective polarizer may include a plurality of reflective polarizer portions, where each reflective polarizer portion conforms to a corresponding facet of the Fresnel lens. The reflective polarizer may be configured to reflect a first polarization and transmit a second polarization of incident light. The optical configuration may form an image of the display viewable by a user when the user wears the apparatus. Other devices, methods, systems, and computer-readable media are also disclosed.
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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
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.
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