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公开(公告)号：US20230236469A1
公开(公告)日：2023-07-27
申请号：US18127889
申请日：2023-03-29
Applicant: Apple Inc
CPC classification number: G02F1/23 , H01L31/02327 , H01L33/58 , G01J1/4204 , G02F1/0121 , G01J1/0488 , G02F2203/055
Abstract: An optical device stack includes at least one of a photodetector or an optical emitter and a metasurface. The metasurface is disposed over a light-receiving surface of the photodetector or a light emission surface of the optical emitter. The metasurface includes a first conductive layer having an electrically-tunable optical property and an array of conductive nanostructures disposed on a first side of the first conductive layer. A second conductive layer is disposed on a second side of the first conductive layer. An electrical insulator is disposed between the first conductive layer and the second conductive layer. A change in an electrical bias between the metasurface and the second conductive layer, from a first electrical bias to a second electrical bias, tunes the electrically-tunable optical property from a first state to a second state, and changes an electrically-tunable optical filtering property of the metasurface.
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公开(公告)号：US20250102441A1
公开(公告)日：2025-03-27
申请号：US18754521
申请日：2024-06-26
Applicant: Apple Inc.
Inventor： Fehmi Civitci , David D. Dashevsky , Christopher M. Dodson , Kenneth J. Vampola , Mark T. Winkler , Dawei Lu
Abstract: An electronic device may include a housing and relative humidity sensor in the housing. The relative humidity sensor may include a relative humidity-sensitive layer, a light emitter that emits light into the relative humidity-sensitive layer, and a light detector that detects light that has passed through the relative humidity-sensitive layer. The relative humidity may be determined based on the detected light. For example, the light may be measured interferometrically to determine a path length of the light to determine the relative humidity. Alternatively, the light may be scattered by plasmonic nanoparticles in a relative humidity-sensitive material to determine the relative humidity. As other examples, polarized light may pass through the relative humidity-sensitive layer and measured to determine the relative humidity, or light may be used to form sound waves that may be measured to determine the relative humidity. In this way, a light-based relative humidity-sensor may make relative humidity measurements.
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公开(公告)号：US20240315642A1
公开(公告)日：2024-09-26
申请号：US18593532
申请日：2024-03-01
Applicant: Apple Inc.
Inventor： Fehmi Civitci , Aditya B. Nayak , Dawei Lu , Haokun Li
IPC: A61B5/00
CPC classification number: A61B5/4875
Abstract: Embodiments are directed to an electronic device that includes a housing, a light emitter, a first detector positioned at a first separation distance from the light emitter, and a second detector positioned at a second separation distance from the light emitter. The electronic device can include a processor that is configured to cause the light emitter to emit light toward a user, receive a first measurement from the first detector based on a return of the emitted light from tissue of the user and receive a second measurement from the second detector based on a return of the emitted light from the tissue of the user. The processor can determine a decay constant of the emitted light using the first measurements and the second measurements, and determine a water content metric of the user using the determined decay constant.
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公开(公告)号：US20220201240A1
公开(公告)日：2022-06-23
申请号：US17690904
申请日：2022-03-09
Applicant: Apple Inc.
Inventor： Dawei Lu , Kenneth J. Vampola , Peter Jeziorek
IPC: H04N5/58
Abstract: An electronic device has pixels that form an active area of a display for displaying images for a user. A layer of black ink or other opaque material may be formed on an inner surface of a display cover layer in an inactive area of the display that does not overlap pixels. The housing may have sidewalls such as a rear housing wall that faces away from the display. Ambient light sensor windows may be formed from tapered holes or other holes. The tapered holes may be formed in the opaque material on the display cover layer, may be formed in a rear housing wall or other hosing structure, or may be formed in other portions of the electronic device. Non-tapered holes may also form windows. Tapered holes may have sidewalls with portions that run parallel to their longitudinal axes and portions that are angled relative to their longitudinal axes.
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公开(公告)号：US11290677B2
公开(公告)日：2022-03-29
申请号：US16428635
申请日：2019-05-31
Applicant: Apple Inc.
Inventor： Dawei Lu , Kenneth J. Vampola , Peter Jeziorek
Abstract: An electronic device has pixels that form an active area of a display for displaying images for a user. A layer of black ink or other opaque material may be formed on an inner surface of a display cover layer in an inactive area of the display that does not overlap pixels. The housing may have sidewalls such as a rear housing wall that faces away from the display. Ambient light sensor windows may be formed from tapered holes or other holes. The tapered holes may be formed in the opaque material on the display cover layer, may be formed in a rear housing wall or other hosing structure, or may be formed in other portions of the electronic device. Non-tapered holes may also form windows. Tapered holes may have sidewalls with portions that run parallel to their longitudinal axes and portions that are angled relative to their longitudinal axes.
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Patent Agency Ranking
公开(公告)号：US20250102425A1
公开(公告)日：2025-03-27
申请号：US18752306
申请日：2024-06-24
Applicant: Apple Inc.
Inventor： Fehmi Civitci , David D Dashevsky , Christopher M Dodson , Kenneth J Vampola , Mark T Winkler , Dawei Lu
IPC: G01N21/31
Abstract: An electronic device may include a housing and relative humidity sensor in the housing. The relative humidity sensor may include an optical layer, a relative humidity-sensitive layer coupled to a surface of the optical layer, a light emitter that emits light into the optical layer, and a light detector that detects light that has reflected within the optical layer and off of the relative humidity-sensitive layer. The relative humidity may be determined based on the light detected by the light detector. The optical layer may be a layer with angled edges, a prism, a Bragg reflector, or a waveguide. A reference light detector and/or a temperature sensor may be included in the relative humidity sensor, and measurements from these additional sensors may be used in determining the relative humidity. In this way, an optical relative humidity sensor may be formed in the electronic device.
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公开(公告)号：US11619857B2
公开(公告)日：2023-04-04
申请号：US17330274
申请日：2021-05-25
Applicant: Apple Inc.
Abstract: An optical device stack includes at least one of a photodetector or an optical emitter and a metasurface. The metasurface is disposed over a light-receiving surface of the photodetector or a light emission surface of the optical emitter. The metasurface includes a first conductive layer having an electrically-tunable optical property and an array of conductive nanostructures disposed on a first side of the first conductive layer. A second conductive layer is disposed on a second side of the first conductive layer. An electrical insulator is disposed between the first conductive layer and the second conductive layer. A change in an electrical bias between the metasurface and the second conductive layer, from a first electrical bias to a second electrical bias, tunes the electrically-tunable optical property from a first state to a second state, and changes an electrically-tunable optical filtering property of the metasurface.
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公开(公告)号：US20200382739A1
公开(公告)日：2020-12-03
申请号：US16428635
申请日：2019-05-31
Applicant: Apple Inc.
Inventor： Dawei Lu , Kenneth J. Vampola , Peter Jeziorek
IPC: H04N5/58
Abstract: An electronic device has pixels that form an active area of a display for displaying images for a user. A layer of black ink or other opaque material may be formed on an inner surface of a display cover layer in an inactive area of the display that does not overlap pixels. The housing may have sidewalls such as a rear housing wall that faces away from the display. Ambient light sensor windows may be formed from tapered holes or other holes. The tapered holes may be formed in the opaque material on the display cover layer, may be formed in a rear housing wall or other hosing structure, or may be formed in other portions of the electronic device. Non-tapered holes may also form windows. Tapered holes may have sidewalls with portions that run parallel to their longitudinal axes and portions that are angled relative to their longitudinal axes.
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公开(公告)号：US11665310B2
公开(公告)日：2023-05-30
申请号：US17690904
申请日：2022-03-09
Applicant: Apple Inc.
Inventor： Dawei Lu , Kenneth J. Vampola , Peter Jeziorek
CPC classification number: H04N5/58 , G06F3/042 , G06F3/0414
Abstract: An electronic device has pixels that form an active area of a display for displaying images for a user. A layer of black ink or other opaque material may be formed on an inner surface of a display cover layer in an inactive area of the display that does not overlap pixels. The housing may have sidewalls such as a rear housing wall that faces away from the display. Ambient light sensor windows may be formed from tapered holes or other holes. The tapered holes may be formed in the opaque material on the display cover layer, may be formed in a rear housing wall or other hosing structure, or may be formed in other portions of the electronic device. Non-tapered holes may also form windows. Tapered holes may have sidewalls with portions that run parallel to their longitudinal axes and portions that are angled relative to their longitudinal axes.
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公开(公告)号：US12072601B2
公开(公告)日：2024-08-27
申请号：US18127889
申请日：2023-03-29
Applicant: Apple Inc.
CPC classification number: G02F1/23 , G01J1/0488 , G01J1/4204 , G02F1/0121 , H01L31/02327 , H01L33/58 , G02F2203/055
Abstract: An optical device stack includes at least one of a photodetector or an optical emitter and a metasurface. The metasurface is disposed over a light-receiving surface of the photodetector or a light emission surface of the optical emitter. The metasurface includes a first conductive layer having an electrically-tunable optical property and an array of conductive nanostructures disposed on a first side of the first conductive layer. A second conductive layer is disposed on a second side of the first conductive layer. An electrical insulator is disposed between the first conductive layer and the second conductive layer. A change in an electrical bias between the metasurface and the second conductive layer, from a first electrical bias to a second electrical bias, tunes the electrically-tunable optical property from a first state to a second state, and changes an electrically-tunable optical filtering property of the metasurface.
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