Depth sensor combining line triangulation and time of flight

    公开(公告)号:US10955555B2

    公开(公告)日:2021-03-23

    申请号:US16538864

    申请日:2019-08-13

    Applicant: Apple Inc.

    Abstract: Optical apparatus includes a projector, which directs a sequence of pulses of radiation toward a scene so as to form one or more lines of the radiation on the scene. A receiver includes an array of single-photon detectors, which output, in response to the radiation that is incident thereon, signals indicative of a time-of-flight of the pulses from the projector to the receiver via the points in the scene, and collection optics, which form an image the scene on the array, including the one or more lines of the radiation, such that each single-photon detector receives the radiation reflected from a corresponding point in the scene. A processor receives the signals output by the sensing elements, and derives depth coordinates of the points in the scene from both the time-of-flight of the pulses and triangulation of the one or more lines in the image.

    Combined temporal contrast sensing and line scanning

    公开(公告)号:US10742881B1

    公开(公告)日:2020-08-11

    申请号:US16045770

    申请日:2018-07-26

    Applicant: APPLE INC.

    Abstract: An optoelectronic device includes a mount, which is configured to rotate about a rotational axis. A line radiation source is attached to the mount and configured to project a line of radiation onto a scene surrounding the mount as the mount rotates. An imaging assembly is attached to the mount in a location that is offset from the radiation source and includes a temporal contrast sensor including a two-dimensional array of sensing elements, which independently and asynchronously generate event signals in response to temporal changes of irradiance, and objective optics, which are configured to image the scene onto the array.

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