LIGHT DETECTION AND RANGING SENSOR
    1.
    发明申请
    LIGHT DETECTION AND RANGING SENSOR 审中-公开
    光检测和量程传感器

    公开(公告)号:WO2017112416A1

    公开(公告)日:2017-06-29

    申请号:PCT/US2016/065472

    申请日:2016-12-08

    Applicant: APPLE INC.

    CPC classification number: G01S7/4863 G01S7/4817 G01S17/10 G01S17/42

    Abstract: An electro-optical device (18) includes a laser light source (20), which emits at least one beam of light pulses, a beam steering device (24), which transmits and scans the at least one beam across a target scene (22), and an array (28) of sensing elements (44). Each sensing element outputs a signal indicative of a time of incidence of a single photon on the sensing element. Light collection optics (27) image the target scene scanned by the transmitted beam onto the array. Circuitry (50) is coupled to actuate the sensing elements only in a selected region (70) of the array and to sweep the selected region over the array in synchronization with scanning of the at least one beam.

    Abstract translation: 光电装置(18)包括发射至少一个光脉冲束的激光源(20),光束转向装置(24),该光束转向装置(24)传输并扫描至少一个光脉冲 一束穿过目标场景(22),以及感测元件(44)的阵列(28)。 每个感测元件输出指示感测元件上的单个光子的入射时间的信号。 光收集光学器件(27)将由透射光束扫描的目标场景成像到阵列上。 电路(50)被耦合以仅在阵列的选定区域(70)中致动感测元件,并且与至少一个光束的扫描同步地扫过阵列上的选定区域。

    TIME-OF-FLIGHT DEPTH MAPPING WITH PARALLAX COMPENSATION

    公开(公告)号:WO2019005260A1

    公开(公告)日:2019-01-03

    申请号:PCT/US2018/026993

    申请日:2018-04-11

    Applicant: APPLE INC.

    Abstract: An optical sensing device (20) includes a light source (22), which is configured to emit one or more beams of light pulses at respective angles toward a target scene. An array (40) of sensing elements (54) is configured to output signals in response to incidence of photons on the sensing elements. Light collection optics (42) are configured to image the target scene onto the array. Control circuitry (56) is coupled to actuate the sensing elements only in one or more selected regions of the array, each selected region containing a respective set of the sensing elements in a part of the array onto which the light collection optics image a corresponding area of the target scene that is illuminated by the one of the beams, and to adjust a membership of the respective set responsively to a distance of the corresponding area from the device.

    LIDAR WITH IRREGULAR PULSE SEQUENCE
    3.
    发明申请
    LIDAR WITH IRREGULAR PULSE SEQUENCE 审中-公开
    带有不规则脉冲序列的激光雷达

    公开(公告)号:WO2018057081A1

    公开(公告)日:2018-03-29

    申请号:PCT/US2017/039171

    申请日:2017-06-26

    Applicant: APPLE INC.

    Abstract: Depth-sensing apparatus (20) includes a laser (28), which is configured to emit pulses of optical radiation toward a scene, and one or more detectors (40), which are configured to receive the optical radiation that is reflected from points in the scene and to output signals indicative of respective times of arrival of the received radiation. Control and processing circuitry (44, 38) is coupled to drive the laser to emit a sequence of the pulses in a predefined temporal pattern that specifies irregular intervals between the pulses in the sequence, and to correlate the output signals with the temporal pattern in order to find respective times of flight for the points in the scene.

    Abstract translation: 深度感测设备(20)包括:激光器(28),其被配置为向场景发射光学辐射的脉冲;以及一个或多个检测器(40),其被配置为接收 从场景中的点反射的光辐射并且输出指示所接收的辐射的相应到达时间的信号。 控制和处理电路(44,38)被耦合以驱动激光器以预定义时间模式发射脉冲序列,该预定义时间模式指定序列中的脉冲之间的不规则间隔,并且按照顺序将输出信号与时间模式相关 找到场景中各点的各个飞行时间。

    DEPTH SENSOR WITH INTERLACED SAMPLING STRUCTURE

    公开(公告)号:WO2021034409A1

    公开(公告)日:2021-02-25

    申请号:PCT/US2020/040040

    申请日:2020-06-29

    Applicant: APPLE INC.

    Abstract: Apparatus (20) for optical sensing includes an illumination assembly (24), which directs optical radiation toward a target scene while modulating the optical radiation with a carrier wave having a predetermined carrier frequency. A detection assembly (26) includes an array (36) of sensing elements (40), which output respective signals in response to the optical radiation that is incident on the sensing elements during each of a plurality of detection intervals, which are synchronized with the carrier frequency at different, respective temporal phase angles, and objective optics (35), which form an image of the target scene on the array. Processing circuitry (22) processes the signals output by the sensing elements in order to compute depth coordinates of the points in the target scene by combining the signals output by respective groups of more than four of the sensing elements.

    CALIBRATION OF DEPTH SENSING USING A SPARSE ARRAY OF PULSED BEAMS

    公开(公告)号:WO2020167337A1

    公开(公告)日:2020-08-20

    申请号:PCT/US2019/045187

    申请日:2019-09-04

    Applicant: APPLE INC.

    Abstract: Depth sensing apparatus (20) includes a radiation source (21), which is configured to emit a first plurality of beams (30) of light pulses toward a target scene (32). An array (24) of a second plurality of sensing elements (78) 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 (34) are configured to image the target scene onto the array of sensing elements. Processing and control circuitry (26, 28, 35) 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 SENSING USING A SPARSE ARRAY OF PULSED BEAMS

    公开(公告)号:WO2020167338A1

    公开(公告)日:2020-08-20

    申请号:PCT/US2019/045188

    申请日:2019-08-06

    Applicant: APPLE INC.

    Inventor: OGGIER, Thierry

    Abstract: Depth sensing apparatus (20) includes a radiation source (21), including a first array of emitters (54) arranged in multiple banks (52, 62), which are configured to emit a first plurality of pulsed beams (30) of optical radiation toward a target scene (32). A second plurality of sensing elements (78) are arranged in a second array (24) and are configured to output signals indicative of respective times of incidence of photons on the sensing elements, wherein the second plurality exceeds the first plurality. Objective optics (34) form an image of the target scene on the array of sensing elements. Processing and control circuitry (26, 28, 35) actuates the multiple banks in alternation and identifies, responsively to the output signals, areas of the second array on which the pulses of optical radiation reflected from corresponding regions of the target scene are incident.

    GLOBAL-SHUTTER IMAGE SENSOR WITH TIME-OF-FLIGHT SENSING CAPABILITY

    公开(公告)号:WO2021252153A1

    公开(公告)日:2021-12-16

    申请号:PCT/US2021/033049

    申请日:2021-05-19

    Applicant: APPLE INC.

    Abstract: Apparatus (20) for optical sensing includes first matrix (36) of optical sensing elements (40), arranged on a semiconductor substrate (41). A second matrix of storage nodes is arranged on the substrate such that respective first and second storage nodes (SN) in the second matrix are disposed in proximity to each of the sensing elements within the first matrix. Switching circuitry (45) couples each of the sensing elements to transfer photocharge to the respective first and second storage nodes. Control circuitry (22) controls the switching circuitry in a depth sensing mode such that over a series of detection cycles, each of the sensing elements and a first neighboring sensing element are connected together to the respective first storage node during the first detection interval, and each of the sensing elements and the second neighboring sensing element are connected together to the respective second storage node during the second detection interval.

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