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公开(公告)号：US11189258B2
公开(公告)日：2021-11-30
申请号：US16735454
申请日：2020-01-06
IPC分类号： G10K11/165 , G10K11/178
摘要： An acoustic element includes a nanovoided polymer layer having a first nanovoid topology in an unactuated state and a second nanovoid topology different than the first nanovoid topology in an actuated state. Capacitive actuation of the nanovoided polymer layer, for instance, can be used to reversibly control the size and shape of the nanovoids within the polymer layer and hence tune its sound damping characteristics or sound transduction behavior, e.g., during operation of the acoustic element. An acoustic element may be configured for passive or active sound attenuation. Various other apparatuses, systems, materials, and methods are also disclosed.
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公开(公告)号：US11045835B1
公开(公告)日：2021-06-29
申请号：US16449964
申请日：2019-06-24
IPC分类号： B05D3/00 , B05D3/06 , B05D3/10 , H01L41/047
摘要： Example methods include depositing a precursor layer onto a substrate where the precursor layer includes droplets comprising a polymerizable material, inducing a phase inversion in the precursor layer to obtain a modified precursor layer including droplets of a non-polymerizable liquid within a polymerizable liquid mixture, and polymerizing the polymerizable liquid mixture to obtain a nanovoided polymer element. Examples include devices fabricated using nanovoided polymer elements fabricated using such methods, including electroactive devices such as actuators and sensors.
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公开(公告)号：US11022856B1
公开(公告)日：2021-06-01
申请号：US16263829
申请日：2019-01-31
发明人： Andrew John Ouderkirk , Wanli Chi , Kenneth Diest , Renate Eva Klementine Landig , Tanya Malhotra , Austin Lane , Christopher Yuan Ting Liao , Katherine Marie Smyth , Jack Lindsay
摘要： A display device includes a scanned projector for projecting a beam of light, and a diffraction grating for dispersing the light at a plurality of angles into a waveguide, wherein at least a portion of the diffraction grating includes a nanovoided polymer. Manipulation of the nanovoid topology, such as through capacitive actuation, can be used to reversibly control the effective refractive index of the nanovoided polymer and hence the grating efficiency. The switchable grating can be used to control the amount of diffraction of an incident beam of light through the grating thereby decreasing optical loss. Various other methods, systems, apparatuses, and materials are also disclosed.
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公开(公告)号：US11139756B2
公开(公告)日：2021-10-05
申请号：US16215684
申请日：2018-12-11
发明人： Yigit Mengue , Andrew John Ouderkirk , Christopher Yuan Ting Liao , Katherine Marie Smyth , Thomas John Farrell Wallin , Jack Lindsay , Austin Lane , Tanya Malhotra , Kenneth Diest
摘要： In some embodiments, a device, such as a transducer, includes a polymer element disposed between electrodes, and a control circuit configured to apply electrical potentials having the same polarity to the electrodes. A separation distance between the electrodes may be increased by an electrostatic repulsion between the electrodes. Various other devices, systems, methods, and computer-readable media are also disclosed.
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公开(公告)号：US11107972B2
公开(公告)日：2021-08-31
申请号：US16262439
申请日：2019-01-30
发明人： Kenneth Diest , Andrew John Ouderkirk , Robin Sharma , Tanya Malhotra , Barry David Silverstein , Christopher Yuan Ting Liao , Erik Shipton , Gregory Olegovic Andreev
IPC分类号： G02F1/01 , H01L41/193 , H01L41/09 , H01L41/047 , H04R17/00 , G02B27/01 , G02F1/061 , G02B5/08 , G02B5/30 , G02B27/10 , G06F3/01 , C08F14/20 , C08F14/22 , C08G77/04 , H01L41/083 , H01L41/18 , C08L83/04 , B82Y30/00 , B82Y40/00
摘要： An optical element includes a nanovoided polymer layer having a first refractive index in an unactuated state and a second refractive index different than the first refractive index in an actuated state. Compression or expansion of the nanovoided polymer layer, for instance, can be used to reversibly control the size and shape of the nanovoids within the polymer layer and hence tune its refractive index over a range of values, e.g., during operation of the optical element. Various other apparatuses, systems, materials, and methods are also disclosed.
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公开(公告)号：US11025175B1
公开(公告)日：2021-06-01
申请号：US16364977
申请日：2019-03-26
发明人： Renate Eva Klementine Landig , Kenneth Diest , Spencer Allan Wells , Andrew John Ouderkirk , Sheng Ye
IPC分类号： H02N1/00 , G02B27/01 , H01L41/09 , G02B7/04 , H01L41/193 , G02B26/00 , H01L41/04 , H01L41/253
摘要： In some examples, a device includes a nanovoided polymer element, a planarization layer disposed on a surface of the nanovoided polymer element, a first electrode disposed on the planarization layer, and a second electrode. The nanovoided polymer element may be located at least in part between the first electrode and the second electrode. The planarization layer may be located between the nanovoided polymer element and the first electrode.
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公开(公告)号：US20200186056A1
公开(公告)日：2020-06-11
申请号：US16215684
申请日：2018-12-11
发明人： Yigit Menguc , Andrew John Ouderkirk , Christopher Yuan Ting Liao , Katherine Marie Smyth , Thomas John Farrell Wallin , Jack Lindsay , Austin Lane , Tanya Malhotra , Kenneth Diest
摘要： In some embodiments, a device, such as a transducer, includes a polymer element disposed between electrodes, and a control circuit configured to apply electrical potentials having the same polarity to the electrodes. A separation distance between the electrodes may be increased by an electrostatic repulsion between the electrodes. Various other devices, systems, methods, and computer-readable media are also disclosed.
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公开(公告)号：US20200183168A1
公开(公告)日：2020-06-11
申请号：US16703674
申请日：2019-12-04
发明人： Andrew Spann , Eric Schmitt , Nagi Elabbasi , Kenneth Diest , Katherine Marie Smyth , Renate Eva Klementine Landig , Andrew John Ouderkirk
摘要： An example device includes a nanovoided polymer element, a first electrode, and a second electrode. The nanovoided polymer element may be located at least in part between the first electrode and the second electrode. In some examples, the nanovoided polymer element may include anisotropic voids. In some examples, anisotropic voids may be elongated along one or more directions. In some examples, the anisotropic voids are configured so that a polymer wall thickness between neighboring voids is generally uniform. Example devices may include a spatially addressable electroactive device, such as an actuator or a sensor, and/or may include an optical element. A nanovoided polymer layer may include one or more polymer components, such as an electroactive polymer.
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公开(公告)号：US11407211B1
公开(公告)日：2022-08-09
申请号：US16669970
申请日：2019-10-31
摘要： In some examples, a method includes forming a material layer on a substrate, partially polymerizing a component of the material layer, to form fluid-filled droplets within a partially polymerized matrix, deforming the material layer to form anisotropic fluid-filled droplets, and further polymerizing the partially polymerized matrix to form an anisotropic voided polymer, including anisotropic voids in a polymer matrix. The anisotropic voids may include anisotropic nanovoids. Example methods may further include depositing electrodes on the anisotropic voided polymer so that at least a portion of the anisotropic voided polymer is located between the electrodes. Examples may include forming electroactive elements including an anisotropic nanovoided polymer, and devices (such as sensors and/or actuators) including electroactive elements.
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公开(公告)号：US11233189B2
公开(公告)日：2022-01-25
申请号：US16262433
申请日：2019-01-30
发明人： Kenneth Diest , Andrew John Ouderkirk , Gregory Olegovic Andreev , Erik Shipton , Tanya Malhotra , Barry David Silverstein , Christopher Yuan Ting Liao
IPC分类号： G02F1/03 , G02F1/07 , H01L41/193 , H01L41/09 , H01L41/047 , H04R17/00 , G02B27/01 , G02F1/01 , G02F1/061 , G02B5/08 , G02B5/30 , G02B27/10 , G06F3/01 , C08F14/20 , C08F14/22 , C08G77/04 , H01L41/083 , H01L41/18 , G02B5/18 , F21V8/00 , G02F1/29 , H01L41/04 , H01L41/253 , H02N1/00 , B05D3/06 , B05D3/10 , G02C7/08 , G06K9/00 , G06T19/00 , C08L83/04 , B82Y30/00 , B82Y40/00 , G02B7/04 , G02B26/00
摘要： A form birefringent optical element includes a structured layer and a dielectric environment disposed over the structured layer. At least one of the structured layer and the dielectric environment includes a nanovoided polymer, the nanovoided polymer having a first refractive index in an unactuated state and a second refractive index different than the first refractive index in an actuated state. Actuation of the nanovoided polymer can be used to reversibly control the form birefringence of the optical element. Various other apparatuses, systems, materials, and methods are also disclosed.
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