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    Calibration of depth sensing using a sparse array of pulsed beams
    1.
    发明授权
    Calibration of depth sensing using a sparse array of pulsed beams 有权

    公开(公告)号：US11371833B2

    公开(公告)日：2022-06-28

    申请号：US17175714

    申请日：2021-02-15

    Applicant: Apple Inc.

    Inventor： Zeev Roth ,  Mendy Shoval ,  Moshe Laifenfeld ,  Sagy Zino ,  Thierry Oggier

    IPC: G01B11/22 ,  H01L31/107 ,  H01S5/183 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/89 ,  H01S5/32

    Abstract: Depth sensing apparatus includes a radiation source, which is configured to emit a first plurality of beams of light pulses toward a target scene. An array of a second plurality of sensing elements is configured to output signals indicative of respective times of incidence of photons on the sensing element, wherein the second plurality exceeds the first plurality. Light collection optics are configured to image the target scene onto the array of sensing elements. Processing and control circuitry is coupled to receive the signals from the array and is configured to search over the sensing elements in order to identify, responsively to the signals, respective regions of the array on which the light pulses reflected from the target scene are incident, and to process the signals from the identified regions in order determine respective times of arrival of the light pulses.

    OPTICAL MONITORING OF SCAN PARAMETERS
    3.
    发明申请
    OPTICAL MONITORING OF SCAN PARAMETERS 有权
    扫描参数的光学监测

    公开(公告)号：US20170038581A1

    公开(公告)日：2017-02-09

    申请号：US14816107

    申请日：2015-08-03

    Applicant: APPLE INC.

    Inventor： Niv Gilboa ,  Zeev Roth ,  Rafael Halfon ,  Oz Barak

    IPC: G02B26/12

    CPC classification number: G02B26/127 ,  G01S7/4813 ,  G01S7/4817 ,  G01S7/4972 ,  G01S17/00 ,  G01S17/42 ,  G02B26/101 ,  G02B27/0031

    Abstract: Scanning apparatus includes a transmitter, which is configured to emit a beam comprising pulses of light, and a scanner, which is configured to scan the beam along a scan axis over a specified angular range. A scattering line extends across a path of the scanned beam. A receiver is configured to receive the light scattered from the scattering line and to generate an output indicative of an intensity of the scattered light. A controller is coupled to process the output of the receiver so as to monitor operation of the scanner.

    Abstract translation: 扫描设备包括被配置为发射包括光脉冲的光束的发射器和被配置成沿着扫描轴在特定角度范围扫描光束的扫描仪。 散射线延伸穿过扫描光束的路径。 接收器被配置为接收从散射线散射的光并产生指示散射光的强度的输出。 耦合控制器以处理接收器的输出，以便监视扫描器的操作。

    Depth sensor calibration using internal reflections
    4.
    发明授权
    Depth sensor calibration using internal reflections 有权

    公开(公告)号：US12196860B2

    公开(公告)日：2025-01-14

    申请号：US17189300

    申请日：2021-03-02

    Applicant: APPLE INC.

    Inventor： Moshe Laifenfeld ,  Zeev Roth

    IPC: G01C3/08 ,  G01S17/04 ,  G01S17/10 ,  G01S17/89

    Abstract: Depth sensing apparatus includes a radiation source, which emits a first array of beams of light pulses through a window toward a target scene. Objective optics image the target scene onto a second array of sensing elements, which output signals indicative of respective times of incidence of photons. A first calibration, which associates the beams in the first array with respective first locations on the second array onto which the beams reflected from the target scene are imaged, is used in processing the signals in order to measure respective times of flight of the light pulses. A second calibration indicates second locations on which stray radiation is incident on the second array due to reflection of the beams from the window. Upon detecting a change in the second locations relative to the second calibration, the first calibration is corrected so as to compensate for the detected change.

    Calibration of depth sensing using a sparse array of pulsed beams
    5.
    发明申请
    Calibration of depth sensing using a sparse array of pulsed beams 审中-公开

    公开(公告)号：US20200256669A1

    公开(公告)日：2020-08-13

    申请号：US16532517

    申请日：2019-08-06

    Applicant: APPLE INC.

    Inventor： Zeev Roth ,  Mendy Shoval ,  Moshe Laifenfeld ,  Sagy Zino ,  Thierry Oggier

    IPC: G01B11/22 ,  H01L31/107 ,  H01S5/183

    Abstract: Depth sensing apparatus includes a radiation source, which is configured to emit a first plurality of beams of light pulses toward a target scene. An array of a second plurality of sensing elements is configured to output signals indicative of respective times of incidence of photons on the sensing element, wherein the second plurality exceeds the first plurality. Light collection optics are configured to image the target scene onto the array of sensing elements. Processing and control circuitry is coupled to receive the signals from the array and is configured to search over the sensing elements in order to identify, responsively to the signals, respective regions of the array on which the light pulses reflected from the target scene are incident, and to process the signals from the identified regions in order determine respective times of arrival of the light pulses.

    Depth sensor calibration using internal reflections
    6.
    发明申请
    Depth sensor calibration using internal reflections 有权

    公开(公告)号：US20220283307A1

    公开(公告)日：2022-09-08

    申请号：US17189300

    申请日：2021-03-02

    Applicant: APPLE INC.

    Inventor： Moshe Laifenfeld ,  Zeev Roth

    IPC: G01S17/89 ,  G01S17/10 ,  G01S17/04

    Abstract: Depth sensing apparatus includes a radiation source, which emits a first array of beams of light pulses through a window toward a target scene. Objective optics image the target scene onto a second array of sensing elements, which output signals indicative of respective times of incidence of photons. A first calibration, which associates the beams in the first array with respective first locations on the second array onto which the beams reflected from the target scene are imaged, is used in processing the signals in order to measure respective times of flight of the light pulses. A second calibration indicates second locations on which stray radiation is incident on the second array due to reflection of the beams from the window. Upon detecting a change in the second locations relative to the second calibration, the first calibration is corrected so as to compensate for the detected change.

    Calibration of depth sensing using a sparse array of pulsed beams
    7.
    发明申请
    Calibration of depth sensing using a sparse array of pulsed beams 有权

    公开(公告)号：US20210164776A1

    公开(公告)日：2021-06-03

    申请号：US17175714

    申请日：2021-02-15

    Applicant: Apple Inc.

    Inventor： Zeev Roth ,  Mendy Shoval ,  Moshe Laifenfeld ,  Sagy Zino ,  Thierry Oggier

    IPC: G01B11/22 ,  G01S7/4865 ,  H01S5/183 ,  G01S17/89 ,  G01S17/10 ,  H01L31/107 ,  H01S5/32

    Abstract: Depth sensing apparatus includes a radiation source, which is configured to emit a first plurality of beams of light pulses toward a target scene. An array of a second plurality of sensing elements is configured to output signals indicative of respective times of incidence of photons on the sensing element, wherein the second plurality exceeds the first plurality. Light collection optics are configured to image the target scene onto the array of sensing elements. Processing and control circuitry is coupled to receive the signals from the array and is configured to search over the sensing elements in order to identify, responsively to the signals, respective regions of the array on which the light pulses reflected from the target scene are incident, and to process the signals from the identified regions in order determine respective times of arrival of the light pulses.

    Calibration of depth sensing using a sparse array of pulsed beams
    8.
    发明授权
    Calibration of depth sensing using a sparse array of pulsed beams 有权

    公开(公告)号：US10955234B2

    公开(公告)日：2021-03-23

    申请号：US16532517

    申请日：2019-08-06

    Applicant: APPLE INC.

    Inventor： Zeev Roth ,  Mendy Shoval ,  Moshe Laifenfeld ,  Sagy Zino ,  Thierry Oggier

    IPC: G01B11/22 ,  H01L31/107 ,  H01S5/183 ,  G01S7/4865 ,  G01S17/10 ,  G01S17/89 ,  H01S5/32

    Abstract: Depth sensing apparatus includes a radiation source, which is configured to emit a first plurality of beams of light pulses toward a target scene. An array of a second plurality of sensing elements is configured to output signals indicative of respective times of incidence of photons on the sensing element, wherein the second plurality exceeds the first plurality. Light collection optics are configured to image the target scene onto the array of sensing elements. Processing and control circuitry is coupled to receive the signals from the array and is configured to search over the sensing elements in order to identify, responsively to the signals, respective regions of the array on which the light pulses reflected from the target scene are incident, and to process the signals from the identified regions in order determine respective times of arrival of the light pulses.

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