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公开(公告)号：US20240302668A1
公开(公告)日：2024-09-12
申请号：US18414196
申请日：2024-01-16
Applicant: Meta Platforms Technologies, LLC
Inventor： Kenneth Alexander Diest , John Nelson , Selso Luanava
IPC: G02B27/01
CPC classification number: G02B27/0176 , G02B2027/0112 , G02B2027/0178
Abstract: A device includes multiple payloads that are adjusted by actuators. The payloads may be optical elements such as lens assemblies. The actuators may be disposed within edge gaps of the payloads in order to reduce the footprint of the structure. One actuator may be configured to adjust more than one payload to reduce the number of actuators.
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公开(公告)号：US20240295763A1
公开(公告)日：2024-09-05
申请号：US18515795
申请日：2023-11-21
Applicant: Meta Platforms Technologies, LLC
Inventor： Kenneth Alexander Diest , Spencer Allan Wells , Zhaohui Yang , Nihar Ranjan Mohanty , Richard Farrell , Jilin Yang , Ehsan Arbabi
CPC classification number: G02F1/05 , C03C17/23 , C30B29/30 , C30B29/32 , G02B6/34 , G03F7/0002 , G03F7/0005 , C03C2217/228 , C03C2217/23 , C03C2217/92
Abstract: A device includes a pair of electrodes and a dynamic material disposed between the pair of electrodes, the dynamic material including a crystalline microstructure configured to change between at least two states in response to a change in an electric field between the two electrodes. A material includes tetragonal lead magnesium niobate-lead titanate (PMN-PT) and at least one lanthanide series element. A method includes doping a lead magnesium niobate-lead titanate material with at least one lanthanide series element, and processing the PMN-PT material to form tetragonal PMN-PT. A further method includes forming a low refractive index nanostructured grating over a carrier substrate, forming a high refractive index layer over the low refractive index grating to produce a nanostructured coupling element, forming an adhesive layer over the nanostructured coupling element, and affixing the nanostructured coupling element to a high index waveguide.
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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
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.
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公开(公告)号：US20230076619A1
公开(公告)日：2023-03-09
申请号：US18049685
申请日：2022-10-26
Applicant: Meta Platforms Technologies, LLC
Inventor： Sheng Ye , Spencer Allan Wells , Andrew John Ouderkirk , Kenneth Alexander Diest , Renate Eva Klementine Landig
Abstract: An actuator includes a primary electrode, a secondary electrode overlapping at least a portion of the primary electrode, a nanovoided polymer layer disposed between and abutting the primary electrode and the secondary electrode, the nanovoided polymer layer having a plurality of nanovoids dispersed throughout a polymer matrix, and a sealing layer at least partially encapsulating the nanovoided polymer layer, where the nanovoids include a fill gas.
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公开(公告)号：US20240295793A1
公开(公告)日：2024-09-05
申请号：US18595412
申请日：2024-03-04
Applicant: Meta Platforms Technologies, LLC
Inventor： Spencer Allan Wells , Kenneth Alexander Diest
CPC classification number: G02F1/3558 , G02F1/0027 , G02F1/0316 , G02F1/035
Abstract: A device includes a pair of electrodes and a dynamic material disposed between the pair of electrodes, the dynamic material including a crystalline microstructure configured to change between at least two states in response to a change in an electric field between the two electrodes. A material includes tetragonal lead magnesium niobate-lead titanate (PMN-PT) and at least one lanthanide series element. A method includes doping a lead magnesium niobate-lead titanate material with at least one lanthanide series element, and processing the PMN-PT material to form tetragonal PMN-PT. A further method includes forming a low refractive index nanostructured grating over a carrier substrate, forming a high refractive index layer over the low refractive index grating to produce a nanostructured coupling element, forming an adhesive layer over the nanostructured coupling element, and affixing the nanostructured coupling element to a high index waveguide.
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Patent Agency Ranking
公开(公告)号：US20240130239A1
公开(公告)日：2024-04-18
申请号：US17968422
申请日：2022-10-18
Applicant: Meta Platforms Technologies, LLC
Inventor： Kenneth Alexander Diest , Andrew John Ouderkirk , Renate Eva Klementine Landig , Katherine Marie Smyth , Spencer Allan Wells , Tingling Rao , Sheng Ye , Eric Collier Schmitt , Nagi Hosni Elabbasi , Bachir Ahmed Abeid
IPC: H01L41/317 , H01L41/09 , H01L41/29 , H01L41/45
CPC classification number: H01L41/317 , H01L41/09 , H01L41/29 , H01L41/45
Abstract: An actuator assembly includes a primary electrode, a secondary electrode overlapping at least a portion of the primary electrode, and an electroactive polymer layer disposed between the primary electrode and the secondary electrode, where the electroactive polymer layer includes a non-vertical (e.g., sloped) sidewall with respect to a major surface of at least one of the electrodes. The electroactive polymer layer may be characterized by a non-axisymmetric shape with respect to an axis that is oriented orthogonal to an electrode major surface.
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公开(公告)号：US11889763B2
公开(公告)日：2024-01-30
申请号：US17183302
申请日：2021-02-23
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Andrew John Ouderkirk , Spencer Allan Wells , Christopher Stipe , Kenneth Alexander Diest , Christopher Yuan Ting Liao , Nagi Hosni Elabbasi , James Howard Thomas Ransley , Taha Masood , Liliana Ruiz Diaz , Laura Cressman
CPC classification number: H10N30/20 , G02B3/12 , G02B26/004 , H02N2/04 , H10N30/05 , H10N30/067 , H10N30/871
Abstract: An actuator may be integrated into an optical element such as a liquid lens and configured to create spherical curvature as well as a variable cylinder radius and axis in a surface of the optical element. An example actuator may include a stack of electromechanical layers, and electrodes configured to apply an electric field independently across each of the electromechanical layers. Within the stack, an orientation of neighboring electromechanical layers may differ, e.g., stepwise, by at least approximately 10°.
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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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9.发明授权公开(公告)号：US11953702B1
公开(公告)日：2024-04-09
申请号：US17822367
申请日：2022-08-25
Applicant: Meta Platforms Technologies, LLC
CPC classification number: G02B3/00 , B29D11/00355 , G02B1/041 , G02B3/0012 , G02B5/045 , G02B27/0172 , B29K2105/04 , B29K2995/0026 , G02B3/0087 , G02B2027/0178 , G02B2207/101 , G02B2207/107
Abstract: A graded-index optical element may include a nanovoided material including a first surface and a second surface opposite the first surface. The nanovoided material may be transparent between the first surface and the second surface. Additionally, the nanovoided material may have a predefined change in effective refractive index in at least one axis due to a change in at least one of nanovoid size or nanovoid distribution along the at least one axis. Various other elements, devices, systems, materials, and methods are also disclosed.
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公开(公告)号：US20230271823A1
公开(公告)日：2023-08-31
申请号：US18049759
申请日：2022-10-26
Applicant: Meta Platforms Technologies, LLC
Inventor： Katherine Marie Smyth , Kenneth Alexander Diest , Brian Wheelwright , Daniel Guenther Greif
CPC classification number: B81B3/0021 , G02B26/0858 , B81B2201/042 , B81B2203/0118 , B81B2203/04 , B81B2203/06
Abstract: A direct drive scanning micromirror includes a mirror body defining a mirror surface, and a plurality of curved cantilevers that each extend directly from the mirror body. The shape of the cantilevers and the geometry of the interface between the cantilevers and the mirror body are configured to decrease peak stresses within the micromirror during operation, which may beneficially impact performance and lifetime.
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