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51.发明授权公开(公告)号：US12209890B2
公开(公告)日：2025-01-28
申请号：US17710682
申请日：2022-03-31
Applicant: Apple Inc.
Inventor： Tong Chen , Ahmet Fatih Cihan , Daryl I. Vulis , Mingzhou Jin
IPC: G01N15/1434 , G01D5/26 , G01J9/02 , G06F3/01 , G06F3/03 , G06F3/0354
Abstract: An optical sensor module includes an interferometric sensor and a set of one or more optical elements. The interferometric sensor includes a coherent light source and at least one detector configured to generate an interferometric signal. The set of one or more optical elements is configured to simultaneously direct a first portion of light emitted by the coherent light source toward a first focus area within a first depth of focus; direct a second portion of the light emitted by the coherent light source toward a second focus area within a second depth of focus; and direct portions of the emitted light that are returned from one or more objects within the first depth of focus or the second depth of focus toward the interferometric sensor.
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公开(公告)号：US20240106192A1
公开(公告)日：2024-03-28
申请号：US17951410
申请日：2022-09-23
Applicant: Apple Inc.
Inventor： Fei Tan , Keith Lyon , Tong Chen , Chin Han Lin , Xiaofeng Fan , Arnaud Laflaquiere
CPC classification number: H01S5/0262 , G01S7/4812 , G02B7/287 , G03B13/20 , G03B13/36 , H01L31/125 , H01S5/042 , H01S5/423
Abstract: Disclosed herein are electronic devices that include arrays of dual function light transmit and receive pixels. The pixels of such arrays include a photodetector (PD) structure and a vertical-cavity, surface-emitting laser (VCSEL) diode, both formed in a common stack of epitaxial semiconductor layers. The pixels of the array may be configured by a controller or processor to function either as a light emitter by biasing the VCSEL diode, or as a light detector or receiver by a different bias applied to the PD structure, and this functionality may be altered in time. The array of dual function pixels may be positioned interior to an optical display of an electronic device, in some cases to provide depth sensing or autofocus. The array of pixels may be registered with a camera of an electronic device, such as to provide depth sensing or autofocus.
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53.发明授权公开(公告)号：US11909175B2
公开(公告)日：2024-02-20
申请号：US17148408
申请日：2021-01-13
Applicant: Apple Inc.
Inventor： Chih-Wei Chuang , Peter L. Chang , Tong Chen
CPC classification number: H01S5/187 , H01S5/028 , H01S5/0262 , H01S5/0264 , H01S5/18 , H01S5/3202 , H01S5/0287
Abstract: An optoelectronic device includes an off-cut III-V semiconductor substrate, a set of epitaxial layers formed on the off-cut III-V semiconductor substrate, and a horizontal cavity surface-emitting laser (HCSEL) having a laser resonant cavity formed in the set of epitaxial layers. The same or another optoelectronic device includes a semiconductor substrate; a laser, epitaxially grown on the semiconductor substrate and having a laser resonant cavity; a semiconductor device, epitaxially grown on the semiconductor substrate and separated from the laser by a single trench having a first vertical wall abutting the laser and a second vertical wall abutting the semiconductor device; and at least one coating on at least one of the first vertical wall or the second vertical wall. The laser resonant cavity of the laser has a horizontal portion parallel to the semiconductor substrate, and each of the first vertical wall and the second vertical wall is oriented perpendicular to the semiconductor substrate.
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公开(公告)号：US11909171B2
公开(公告)日：2024-02-20
申请号：US17219744
申请日：2021-03-31
Applicant: Apple Inc.
Inventor： Tong Chen , Fei Tan , Mingzhou Jin
IPC: G01C3/08 , H01S5/026 , H01L31/0352 , H01S5/183 , H01S5/34 , G01S7/481 , G01S7/4912 , G01S7/4913
CPC classification number: H01S5/026 , G01S7/4812 , G01S7/4913 , G01S7/4916 , G01S7/4917 , H01L31/035236 , H01S5/18361 , 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：US20240000337A1
公开(公告)日：2024-01-04
申请号：US18202167
申请日：2023-05-25
Applicant: Apple Inc.
Inventor： Tong Chen , Ahmet Fatih Cihan , Adrian Z. Harb , Nicholas P. Allec , Joel S. Armstrong-Muntner , James E. Stark
CPC classification number: A61B5/08 , A61B5/0059 , A61B5/6803 , A61B5/7445
Abstract: A head mounted device includes a housing and a set of one or more SMI sensors. The set of one or more SMI sensors are disposed in the housing. The set of one or more SMI sensors are configured to emit electromagnetic radiation toward an anatomical structure adjacent a nasal passageway of a user and generate one or more SMI signals including information about movement of the anatomical structure.
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Patent Agency Ranking
公开(公告)号：US20230359273A1
公开(公告)日：2023-11-09
申请号：US18138233
申请日：2023-04-24
Applicant: Apple Inc.
Inventor： Arthur Y. Zhang , Tong Chen , Siddharth S. Hazra , Nicholas C. Soldner
CPC classification number: G06F3/013 , G02B27/017
Abstract: Various implementations disclosed herein include devices, systems, and methods that initiate an action based on a detected gaze direction oriented towards a target area (e.g., a hot corner/zone). For example, an example process may include producing a reflection by directing light towards an eye using an illuminator, receiving sensor data from a sensor, wherein a direction of sensing by the sensor (e.g., the optical axis of the camera) and a direction from the eye to a target area are approximately aligned, determining a reflective property (e.g., a spectral property) of the reflection based on the sensor data, detecting that a gaze direction of the eye is approximately oriented towards the target area (e.g., a hot zone/spot) based on the reflective property, and initiating an action based on detecting that the gaze direction is approximately oriented towards the target area.
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57.发明公开公开(公告)号：US20230258785A1
公开(公告)日：2023-08-17
申请号：US18163063
申请日：2023-02-01
Applicant: Apple Inc.
Inventor： Shingo Mandai , Dong Zheng , Tong Chen , Cristiano L Niclass
IPC: G01S7/487 , G01S7/4863 , G01S17/88
CPC classification number: G01S7/4876 , G01S7/4863 , G01S7/4873 , G01S17/88
Abstract: An electronic device may include a proximity sensor under a cover layer. The proximity sensor may include a light-emitter, such as an infrared light source, and a light-detector, such as an array of single-photon avalanche diodes (SPADs). The SPADs may measure light that has reflected from an external object. However, some of the light may be reflected by the cover layer, creating cross-talk. To distinguish between the cross-talk and signals from the external object, processing circuitry may histogram measurements from the SPADs. In particular, the processing circuitry may histogram near-field and/or far-field measurements into different histograms. The measurements may be weighted and/or gated prior to histogramming. In this way, cross-talk may be distinguished from the near-field and far-field signals.
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58.发明公开公开(公告)号：US20230255214A1
公开(公告)日：2023-08-17
申请号：US18139835
申请日：2023-04-26
Applicant: Apple Inc.
Inventor： Tong Chen , Mark T. Winkler
CPC classification number: A21B3/13 , A47J37/1295 , A21D13/31 , A21D13/60 , A21D13/80 , A21D13/20 , A23V2002/00 , A23G2220/12
Abstract: A optical communication system including a source device and an endpoint device. The source device include an array of laser diodes and is configured to drive the laser diodes to project a sequence of patterns into the field of view of the source device to define a set of serially-projected codes, each of which isolated to one respective angular division of the field of view of the source device. The endpoint device receives a serially-projected code from the source device which varies based which angular division of the field of view of the source device is occupied by the endpoint device.
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公开(公告)号：US20230070943A1
公开(公告)日：2023-03-09
申请号：US17466813
申请日：2021-09-03
Applicant: Apple Inc.
Inventor： Daryl I. Vulis , Brandon J. Hui , Christian Ocier , Shang Wang , Tong Chen , Zhenbin Ge , Runyu Zhang
Abstract: Configurations for a beam deflector metasurface are disclosed. The beam deflector metasurface may include beam deflectors arranged in a repeating, radial pattern of concentric zones. The beam deflector metasurface may be a large area, high numerical aperture metasurface optic with high efficiency when directing light at non-normal angles of incidence. The different concentric zones may direct received light in varying directions with various steepness of angles. The beam deflectors may include pillars that may be the same or different width, height, or shape. The pillars may function as diffractive gratings and the cross-coupling between the pillars may direct the output light. The zones of the beam deflector metasurface may allow for diffusing hot spots and spreading the light evenly over the target area. The beam deflector metasurface may be used for non-imaging applications where the deterioration of focus allows for better efficiency at non-normal input and output angles of incidence. The beam deflectors may be designed for polarization and wavelength sensitivity as well as allowing for multiple processing benefits such as patterning the beam deflectors onto active devices.
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公开(公告)号：US11592873B2
公开(公告)日：2023-02-28
申请号：US16791905
申请日：2020-02-14
Applicant: Apple Inc.
Inventor： Xiao Xiang , Tong Chen , Fan Gui , Mark T. Winkler , Ran Tu , Tsu-Hui Lin , Wenrui Cai , Yun Wang
Abstract: In some embodiments, a display stack includes a set of light-emitting elements, and a display backplane that includes a set of conductors and is electrically coupled to the set of light-emitting elements. A conductor in the set of conductors has a length, and a curved edge extending along at least a portion of the length. In some embodiments, a display stack includes a set of light-emitting elements; a set of transistors, electrically coupled to the set of light-emitting elements; and a set of conductors, electrically coupled to the set of transistors. The set of transistors may be electrically coupled to the set of conductors at a set of conductive pads. A plurality of conductive pads in the set of conductive pads is coupled to a single conductor in the set of conductors. The single conductor approaches different conductive pads in the plurality of conductive pads at different angles.
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