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    Controlling output power of a laser amplifier with variable pulse rate
    1.
    发明授权
    Controlling output power of a laser amplifier with variable pulse rate 有权

    公开(公告)号：US10333269B2

    公开(公告)日：2019-06-25

    申请号：US15849700

    申请日：2017-12-21

    Applicant: Apple Inc.

    Inventor： Ido Luft ,  Andrew J. Sutton ,  Ronen Akerman

    IPC: H01S3/10 ,  H01S3/23 ,  H01S3/094 ,  H01S5/065

    Abstract: A laser system includes a master oscillator, which emits a train of optical seed pulses with variable intervals between the pulses. An optical power amplifier includes an optical gain medium, which receives and amplifies the optical seed pulses from the master oscillator, and a pump, which applies pump radiation to the optical gain medium. A pulse generator applies a control input to the master oscillator, which causes the intervals between the optical seed pulses to vary by at least 50% at a rate of change that is greater than a response frequency of the optical gain medium. A control unit drives the pump responsively to predicted intervals between the optical seed pulses, at a variable pump power selected so that the pulse amplitudes of the output pulses vary by no more than 20% irrespective of the varying intervals between the optical seed pulses.

    Multi-sensor depth mapping
    3.
    发明申请
    Multi-sensor depth mapping 有权

    公开(公告)号：US20220364849A1

    公开(公告)日：2022-11-17

    申请号：US17688933

    申请日：2022-03-08

    Applicant: Apple Inc.

    Inventor： Shay Yosub ,  Assaf Avraham ,  Jawad Nawasra ,  Jonathan Pokrass ,  Moshe Laifenfeld ,  Nir Ben Zadok ,  Niv Gilboa ,  Tal Kaitz ,  Ronen Akerman ,  Naveh Levanon

    IPC: G01B11/22 ,  G01S17/894 ,  G01S7/4865 ,  G06T7/55 ,  G06T7/521 ,  G06T7/80

    Abstract: Depth mapping apparatus includes an illumination assembly, which directs modulated optical radiation toward a target scene, and a camera, which captures a two-dimensional image of the target scene. A range sensor senses respective times of flight of photons reflected from a matrix of locations disposed across the target scene. A processor derives first depth coordinates of the matrix of locations responsively to the respective times of flight, derives second depth coordinates of the matrix of locations responsively to a transverse disparity between features in the two-dimensional image and corresponding reference features in a reference image, computes a disparity correction function based on a difference between the first and the second depth coordinates at the matrix of locations, corrects the transverse disparity between the two-dimensional image and the reference image using the disparity correction function, and generates a depth map of the target scene based on the corrected transverse disparity.

    Scanning projectors and image capture modules for 3D mapping
    7.
    发明授权
    Scanning projectors and image capture modules for 3D mapping 有权

    公开(公告)号：US09677878B2

    公开(公告)日：2017-06-13

    申请号：US14749654

    申请日：2015-06-25

    Applicant: APPLE INC.

    Inventor： Alexander Shpunt ,  Benny Pesach ,  Ronen Akerman

    IPC: G01B11/25 ,  G06T17/00

    CPC classification number: H04N13/271 ,  G01B11/2518 ,  G06T17/00 ,  H04N5/332 ,  H04N13/254 ,  H04N13/363 ,  H04N13/365 ,  H04N13/398

    Abstract: Apparatus for mapping includes a radiation source, which is configured to emit a beam of radiation. A first scanning mirror is configured to receive and scan the emitted beam in a first direction over a selected angular range within a region of interest. A detector and optics define a sensing area of the detector. A second scanning mirror is configured to scan the sensing area over the selected angular range in the first direction in synchronization with the scanned beam from the radiation source. A scanner is configured to scan both the emitted beam and the sensing area over the region of interest in a second direction, which is perpendicular to the first direction. A processor is configured to process signals output by the detector in order to construct a three-dimensional (3D) map of an object in the region of interest.

    Flexible room controls
    8.
    发明申请
    Flexible room controls 有权

    公开(公告)号：US20160291801A1

    公开(公告)日：2016-10-06

    申请号：US15181422

    申请日：2016-06-14

    Applicant: APPLE INC.

    Inventor： Alexander Shpunt ,  Raviv Erlich ,  Ronen Akerman ,  Ran Halutz

    IPC: G06F3/042 ,  G09G3/02 ,  G06F3/01 ,  G06F3/0488 ,  G06T7/00

    CPC classification number: G06F3/0426 ,  G06F3/017 ,  G06F3/0488 ,  G06T7/521 ,  G09G3/025

    Abstract: Control apparatus includes an optical subsystem, which is configured to direct first light toward a scene that includes a hand of a user in proximity to a wall of a room and to receive the first light that is reflected from the scene, and to direct second light toward the wall so as to project an image of a control device onto the wall. A processor is configured to control the optical subsystem so as to generate, responsively to the received first light, a depth map of the scene, to process the depth map so as to detect a proximity of the hand to the wall in a location of the projected image, and to control electrical equipment in the room responsively to the proximity.

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