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    Focus stabilization of imaging system with variable focus lens
    11.
    发明授权
    Focus stabilization of imaging system with variable focus lens 有权

    公开(公告)号：US11108946B1

    公开(公告)日：2021-08-31

    申请号：US16912420

    申请日：2020-06-25

    Applicant: ZEBRA TECHNOLOGIES CORPORATION

    Inventor： Vladimir Gurevich

    IPC: H04N5/232 ,  G06K7/14

    Abstract: A method and apparatus for the focus stabilization of an imaging system with variable focus lenses is disclosed herein. As example imaging system includes a variable focus (VF) lens for imaging an object of interest (OOI), a controller configured to provide a voltage to the VF lens, an imaging sensor, and a processor. The processor obtains a calibration parameter, and the imaging system obtains a plurality of images of the OOI. The processor identifies a region of interest of one or more of the images, and an alignment parameter is determined from the images. The processor then determines a tuning parameter from comparing the determined alignment parameter with the obtained calibration parameter. The controller tunes the VF lens according to the determined tuning parameter.

    Imaging arrangements and barcode readers including such imaging arrangements
    12.
    发明授权
    Imaging arrangements and barcode readers including such imaging arrangements 有权

    公开(公告)号：US10970503B2

    公开(公告)日：2021-04-06

    申请号：US16170663

    申请日：2018-10-25

    Applicant: Zebra Technologies Corporation

    Inventor： Carl D. Wittenberg ,  Igor Vinogradov ,  Vladimir Gurevich

    IPC: G06K7/10 ,  H04N5/225 ,  G06K7/14 ,  G02B27/30

    Abstract: Imaging arrangements and barcode readers including such imaging arrangements. An imaging arrangement for use in a barcode reader includes a housing. The imaging arrangement also includes a light source configured to emit light along a central light axis. The light source is disposed in the housing. The imaging arrangement also includes a lens having a first surface and a second surface opposite the first surface. The lens is disposed in the housing. The first surface is configured to face the light source and is structured to substantially collimate light received from the light source into a collimated beam. The second surface includes surface structures structured to generate a patterned beam in response to receiving the collimated beam.

    Swipe scanning for variable focus imaging systems
    13.
    发明授权
    Swipe scanning for variable focus imaging systems 有权

    公开(公告)号：US10732380B2

    公开(公告)日：2020-08-04

    申请号：US16229698

    申请日：2018-12-21

    Applicant: Zebra Technologies Corporation

    Inventor： Christopher W. Brock ,  Vladimir Gurevich ,  David P. Goren

    IPC: G06K7/10 ,  G06K7/14 ,  G02B7/38 ,  G02B7/09

    Abstract: An imaging reader includes a light source generating an illumination beam over a working distance, and a variable focus imaging assembly with an image sensor, a variable focus optical element, a variable focus imaging controller that controls operation of the variable focus optical element to define a plurality of imaging planes over the working distance. The variable focus imaging controller assesses a variety of scanning parameters and determines the number of imaging planes over the working distance and the distance of each of imaging plane from the image sensor, to allow the imaging reader to capture images of a target object only at each of the imaging planes, thereby avoiding time-consuming autofocusing on the target. The imaging reader captures images in a sequential order greatly reducing image capture and image analysis processing time.

    Aiming patterns for auto-focus rolling shutter camera with dual imaging FOV and associated systems
    18.
    发明授权
    Aiming patterns for auto-focus rolling shutter camera with dual imaging FOV and associated systems 有权

    公开(公告)号：US11960961B2

    公开(公告)日：2024-04-16

    申请号：US17499744

    申请日：2021-10-12

    Applicant: ZEBRA TECHNOLOGIES CORPORATION

    Inventor： Vladimir Gurevich ,  Carl D. Wittenberg ,  David Tsi Shi ,  Chinh Tan

    IPC: G06K7/10

    CPC classification number: G06K7/10811 ,  G06K7/10732 ,  G06K7/10831 ,  G06K7/1096

    Abstract: A system and methods for providing aiming guidance for an imaging system. The system includes an illumination field source configured to provide illumination along a illumination optical axis to (i) illuminate a target and (ii) indicate a near field of view of the imaging system and a far field aiming source configured to provide a radiation pattern along an aiming optical axis to indicate a far field of view of the imaging system. Near field optics are configured to receive the first illumination from the near field illumination source and to form the first illumination to provide illumination to, and indicate to a user or machine vision system, the near field of view of the imaging system, and far field optics are configured to receive radiation from the aiming source and provide the radiation pattern to the far field to indicate the far field of view of the imaging system.

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