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公开(公告)号：US20220330410A1
公开(公告)日：2022-10-13
申请号：US17229729
申请日：2021-04-13
Applicant: Apple Inc.
Inventor： Yaser Shanjani , Michael K. McCord , Tong Chen
Abstract: First and second parts of an optical component may be spatially separated and not electrically connected. A passive side may contain an optical element. An active side may contain a light-emitting device. To detect damage to the optical element, passive side circuitry that is associated with the optical element may monitor a fail-safe resistor on the optical element for changes in resistance. The circuitry may use a passive side near-field communications antenna to transmit information such as information on the fail-safe resistor to active side circuitry that is associated with the light-emitting device using near-field communications. The active side circuitry can receive the transmitted information using an active side near-field communications antenna and can adjust the light-emitting device accordingly. The active side circuitry can also monitor the active side near-field communications antenna to detect when the passive side and active side antennas have been moved apart.
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公开(公告)号：US20220320820A1
公开(公告)日：2022-10-06
申请号：US17219744
申请日：2021-03-31
Applicant: Apple Inc.
Inventor： Tong Chen , Fei Tan , Mingzhou Jin
IPC: H01S5/026 , H01S5/125 , H01S5/183 , H01L31/0352 , H01S5/34
Abstract: An optical sensor system includes a set of epitaxial layers formed on a semiconductor substrate. The set of epitaxial layers defines a semiconductor laser having a first multiple quantum well (MQW) structure. Electromagnetic radiation is generated by the first MQW structure, emitted from the first MQW structure, and self-mixed with a portion of the emitted electromagnetic radiation that is returned to the first MQW structure. The set of epitaxial layers also defines a second MQW structure operable to generate a first photocurrent responsive to detecting a first emission of the semiconductor laser, and a third MQW structure operable to generate a second photocurrent responsive to detecting a second emission of the semiconductor laser. The optical sensor system also includes a circuit configured to generate a self-mixing interferometry (SMI) signal by combining the first photocurrent and the second photocurrent.
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公开(公告)号：US20220316856A1
公开(公告)日：2022-10-06
申请号：US17219779
申请日：2021-03-31
Applicant: Apple Inc.
Inventor： Tong Chen , Fei Tan , Mingzhou Jin
Abstract: An optical sensor system including a semiconductor substrate; a self-mixing interferometry (SMI) sensor formed on the semiconductor substrate and including a semiconductor laser having a resonant cavity; and an array of photodetectors formed on the semiconductor substrate. The SMI sensor is configured to generate an SMI signal responsive to a retro-reflection of electromagnetic radiation emitted by the semiconductor laser and received into the resonant cavity. The array of photodetectors is configured to generate a set of angular-resolved scatter signals responsive to a scatter of the electromagnetic radiation emitted by the semiconductor laser.
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公开(公告)号：US20210396935A1
公开(公告)日：2021-12-23
申请号：US16905664
申请日：2020-06-18
Applicant: Apple Inc.
Inventor： Tong Chen , Mark T. Winkler , Michael K. McCord , Tingjun Xu , Xianwei Zhao
Abstract: An electronic device includes a housing and a display. The housing defines an interior cavity and includes an optically-transmissive housing component. The display is disposed in the interior cavity and is viewable through the optically-transmissive housing component. An optoelectronic component is disposed in the interior cavity. An optical fiber extends between a first end positioned adjacent the optoelectronic component and a second end positioned adjacent the optically-transmissive housing component. The optical fiber defines a non-linear optical path between the first end and the second end. At least a portion of the optical fiber is laterally offset from a lateral edge of the display.
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公开(公告)号：US11156456B2
公开(公告)日：2021-10-26
申请号：US16418875
申请日：2019-05-21
Applicant: Apple Inc.
Inventor： Tong Chen , Mehmet Mutlu , Mark T. Winkler
Abstract: An optical sensing system can be integrated into a camera module. In particular, an optical element of an optical sensing system can be disposed entirely or partly within a barrel of a camera module. The optical element can be oriented toward a reflective surface, such as an infrared cut filter, such that an optical path is defined between free space and the optical element via at least one reflection off the reflective surface.
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Patent Agency Ranking
公开(公告)号：US20210091244A1
公开(公告)日：2021-03-25
申请号：US17010874
申请日：2020-09-03
Applicant: Apple Inc.
Inventor： Weiping Li , Arnaud Laflaquière , Chinhan Lin , Fei Tan , Tong Chen , Xiaolong Fang
IPC: H01L31/0352 , H01L31/0304 , H01L31/09 , H01L31/0232
Abstract: An optoelectronic device includes a semiconductor substrate and a first stack of epitaxial layers, which are disposed over the semiconductor substrate and are configured to function as a photodetector, which emits a photocurrent in response to infrared radiation in a range of wavelengths greater than 940 nm. A second stack of epitaxial layers is disposed over the first stack and configured to function as an optical transmitter with an emission wavelength in the range of wavelengths greater than 940 nm.
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公开(公告)号：US12287913B2
公开(公告)日：2025-04-29
申请号：US18241802
申请日：2023-09-01
Applicant: Apple Inc.
Inventor： Jason D. Rickwald , Andrew R. Bacon , Kristi E. Bauerly , Rupert Burton , Jordan A. Cazamias , Tong Chen , Shih-Sang Chiu , Jonathan Perron , Giancarlo Yerkes
Abstract: The present disclosure generally relates to techniques and user interfaces for controlling and displaying representations of user in environments, such as during a live communication session and/or a live collaboration session.
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公开(公告)号：US12281957B2
公开(公告)日：2025-04-22
申请号：US17664832
申请日：2022-05-24
Applicant: Apple Inc.
Inventor： Michael K. McCord , Ehsan Khajeh , Brian M. King , Tong Chen , Yaser Shanjani
Abstract: Acoustic optical integrity detection system architectures and methods can be used to detect optical integrity of an optical component by detecting a discontinuity on and/or in the optical component (e.g., on the optical surface and/or within the bulk of the optical component). In some examples, integrity detection can be used to ensure safety compliance of an optical system, optionally including a laser. Acoustic integrity detection can utilize transducers (e.g., piezoelectric transducers) to transmit ultrasonic waves along an optical surface and/or through the thickness of an optical component. A discontinuity of the optical surface can interact with the transmitted wave causing attenuation, redirection and/or reflection of at least a portion of the transmitted wave. Portions of the transmitted wave energy after interaction with the discontinuity can be measured to determine discontinuity location, type, and/or severity.
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69.发明申请公开(公告)号：US20250105594A1
公开(公告)日：2025-03-27
申请号：US18892108
申请日：2024-09-20
Applicant: Apple Inc.
Inventor： Pengfei Qiao , Fei Tan , Tong Chen , Qinghong Du , Siddharth Joshi , Nicolas Hotellier , Alexander Hein , Pierre-Antoine Delean
Abstract: Embodiments described herein include an optoelectronic sensing device having a vertical cavity surface emitting laser (VCSEL), a resonance cavity photodetector (RCPD), and a tunnel junction. The VCSEL is at least partly defined by a first set of semiconductor layers disposed on a substrate. The first set of semiconductor layers includes a first active region. The VCSEL is configured to emit laser light towards the substrate, upon application of a first bias voltage, and undergo self-mixing interference upon reception of reflections or backscatters thereof. The RCPD is vertically adjacent to the VCSEL and is at least partly defined by a second set of semiconductor layers disposed on the substrate. The second set of semiconductor layers includes a second active region. The RCPD is configured to detect, upon application of a second bias voltage, the self-mixing interference. The tunnel junction is disposed between the first active region and the second active region.
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公开(公告)号：US12133314B2
公开(公告)日：2024-10-29
申请号：US17229729
申请日：2021-04-13
Applicant: Apple Inc.
Inventor： Yaser Shanjani , Michael K. McCord , Tong Chen
Abstract: First and second parts of an optical component may be spatially separated and not electrically connected. A passive side may contain an optical element. An active side may contain a light-emitting device. To detect damage to the optical element, passive side circuitry that is associated with the optical element may monitor a fail-safe resistor on the optical element for changes in resistance. The circuitry may use a passive side near-field communications antenna to transmit information such as information on the fail-safe resistor to active side circuitry that is associated with the light-emitting device using near-field communications. The active side circuitry can receive the transmitted information using an active side near-field communications antenna and can adjust the light-emitting device accordingly. The active side circuitry can also monitor the active side near-field communications antenna to detect when the passive side and active side antennas have been moved apart.
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