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公开(公告)号：US11175435B1
公开(公告)日：2021-11-16
申请号：US16730658
申请日：2019-12-30
发明人： Sheng Ye , Andrew John Ouderkirk , Christopher Bruce Stipe , Christopher Yuan Ting Liao , Hayden Erik Hernández
IPC分类号： G02B3/12 , B32B27/08 , B32B27/40 , B32B27/30 , G02B1/04 , B29C55/00 , B29C55/02 , G02B1/11 , G02B1/10 , G02B1/06
摘要： A liquid lens architecture includes a transparent substrate, a multilayer thermoplastic polyurethane (TPU)-based membrane overlying at least a portion of the transparent substrate, and a liquid layer disposed between and abutting the transparent substrate and the multilayer thermoplastic polyurethane-based membrane. The TPU-based membrane may exhibit a reversible elastic response to imposed strains of up to approximately 2% and is configured to limit the transpiration of fluid to less than approximately 10−2 g/m2/day.
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公开(公告)号：US11114952B1
公开(公告)日：2021-09-07
申请号：US16197397
申请日：2018-11-21
发明人： Thomas Wallin , Austin Lane , Christopher Yuan Ting Liao , Jack Lindsay , Tanya Malhotra , Andrew John Ouderkirk , Katherine Marie Smyth , Yigit Mengue
摘要： A device, such as an electroactive device, may include primary electrode and a secondary electrode overlapping at least a portion of the primary electrode. An electroactive polymer element may include a composite polymer material and is disposed between and abuts each of the primary electrode and the secondary electrode. A phase change or other deformable medium such as a liquid, a gas, or a liquid-gas mixture may be disposed as inclusions within the polymer material. The device can be actuated by the application of a voltage between the electrodes and the attendant formation of a Maxwell stress, exposing the deformable medium to a source of radiation, changing a pressure of the deformable medium, or changing a temperature of the deformable medium, e.g., about a phase transformation temperature of the phase change medium.
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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：US20220283340A1
公开(公告)日：2022-09-08
申请号：US17193921
申请日：2021-03-05
发明人： 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
摘要： 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：US11306193B1
公开(公告)日：2022-04-19
申请号：US16214860
申请日：2018-12-10
发明人： Austin Lane , Jack Lindsay , Katherine Marie Smyth , Thomas John Farrell Wallin , Andrew John Ouderkirk , Tanya Malhotra , Christopher Yuan Ting Liao , Yigit Mengue
摘要： A method of forming a nanovoided composite polymer includes forming a resin-containing layer over a substrate, the resin-containing layer including a polymer-forming phase and a sacrificial phase, curing the polymer-forming phase to form a polymer matrix containing the sacrificial phase, and removing the sacrificial phase selectively with respect to the polymer matrix to form a nanovoided composite polymer including the polymer matrix and nanovoids dispersed throughout the polymer matrix. The nanovoids may be randomly or regularly dispersed throughout the matrix. Various other methods, systems, apparatuses, and materials are also disclosed.
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公开(公告)号：US20200150425A1
公开(公告)日：2020-05-14
申请号：US16224245
申请日：2018-12-18
摘要： A near-eye optic includes a substrate having a clear aperture for propagating light. A plurality of inconspicuous electrical components is supported by the substrate in the clear aperture of the substrate. The inconspicuous electrical components may be disposed in an inconspicuous pattern and may be electrically coupled to a plurality of inconspicuous conductive traces, which may also be disposed in an inconspicuous pattern. The inconspicuous pattern may include e.g. an asymmetric pattern, an aperiodic pattern, a pseudo-random pattern, a meandering pattern, a periodic pattern modulated with pseudo-random perturbations, or a non-rectangular pattern modulated with pseudo-random perturbations.
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公开(公告)号：US11415808B1
公开(公告)日：2022-08-16
申请号：US16720024
申请日：2019-12-19
发明人： Robin Sharma , Andrew John Ouderkirk , Christopher Yuan Ting Liao , Qi Zhang , Tanya Malhotra , Karol Constantine Hatzillias , Maik Scheller , Sheng Ye , Gregory Olegovic Andreev
摘要： An example device may include a light source, an optical element, and an encapsulant layer. A light beam generated by the light source may be received by the optical element, and redirected into the encapsulant layer. The optical element may include a high-index material, for example, with a refractive index of at least approximately 1.5 at the wavelength of the light beam. The light source may be a semiconductor light source, such as a light emitting diode or a laser. The optical element may be embedded in the encapsulant layer, and the optical element may have a curved exit surface. Refraction at the exit surface of the optical element may redirect the light beam towards a target. In some examples, the curvature of a freeform exit surface may be configured to improve the uniformity of target illumination
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8.发明授权公开(公告)号：US11256331B1
公开(公告)日：2022-02-22
申请号：US16431197
申请日：2019-06-04
发明人： Kenneth Diest , Andrew John Ouderkirk , Renate Eva Klementine Landig , Katherine Marie Smyth , Christopher Yuan Ting Liao , Jack Lindsay
IPC分类号： G06F3/01
摘要： Embodiments of the present disclosure are generally directed to apparatuses, systems, and methods that utilize electroactive devices in connection with haptic devices (e.g., haptic touch sensors or haptic feedback elements). In some examples, a haptic feedback system may include an array of electroactive devices, each electroactive device including 1) a first electrode, 2) a second electrode, and 3) an electroactive polymer element disposed between the first electrode and the second electrode. The electroactive polymer element may include a nanovoided polymer material that is mechanically deformable in response to an electric field generated by a potential difference between the first electrode and the second electrode. The system may also include control circuitry electronically coupled to the array and configured to apply a voltage to at least one of the first electrode or the second electrode. Various other apparatuses, systems, and methods are also disclosed.
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公开(公告)号：US11073697B1
公开(公告)日：2021-07-27
申请号：US16351477
申请日：2019-03-12
发明人： Robin Sharma , Andrew John Ouderkirk , Tanya Malhotra , Kenneth Diest , Gregory Olegovic Andreev , Erik Shipton , Christopher Yuan Ting Liao , Barry David Silverstein
摘要： Embodiments of the disclosure are generally directed to systems and methods for switchable electroactive devices for head-mounted displays (HMDs). In particular, a method may include (1) applying an electric field to an electroactive element of an electroactive device via electrodes of the electroactive device that are electrically coupled to the electroactive element to compress the electroactive element, which comprises a polymer material defining nanovoids, such that an average size of the nanovoids is decreased and a density of the nanovoids is increased in the electroactive element, wherein the electroactive device is positioned at a distance from a user's eye, and (2) emitting image light from an emissive device positioned such that at least a portion of the image light is incident on a surface of the electroactive device facing the user's eye.
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公开(公告)号：US10926446B1
公开(公告)日：2021-02-23
申请号：US16224836
申请日：2018-12-19
发明人： Andrew John Ouderkirk , Christopher Yuan Ting Liao , Katherine Marie Smyth , Thomas John Farrell Wallin , Jack Lindsay , Austin Lane , Tanya Malhotra , Kenneth Diest , Yigit Menguc
摘要： In various embodiments, an electrode precursor material may be flowed into a manifold extrusion die having first and second manifold inlet openings. Further, an electroactive polymer precursor material may be flowed into the manifold extrusion die via a third manifold inlet opening such that the electroactive polymer precursor material is layered between alternating layers of the electrode precursor material from the first and second manifold inlet openings. Moreover, the electrode precursor material and the electroactive polymer precursor material may be extruded through a manifold outlet opening of the manifold extrusion die. Various other methods, systems, apparatuses, and materials are also disclosed.
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