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    System and method for scanning anatomical structures and for displaying a scanning result
    1.
    发明授权
    System and method for scanning anatomical structures and for displaying a scanning result 有权

    公开(公告)号：US11412993B2

    公开(公告)日：2022-08-16

    申请号：US15742556

    申请日：2016-07-08

    Applicant: DENTSPLY SIRONA inc.

    Inventor： Severin Stalder ,  Markus Berner ,  Konrad Klein

    IPC: A61B5/00 ,  A61B5/107 ,  A61B90/00 ,  A61B90/50 ,  A61B17/00 ,  A61B34/20

    Abstract: A system for scanning anatomical structures and for visualizing the scanning result, wherein the system includes an intraoral scanner, which intraorally captures an image of the anatomical structures, an extraoral detection unit, which detects a spatial position of the intraoral scanner relative to an observer or a person conducting the scan, and a computing unit, which, during the scanning procedure, connects the scanner with a screen and the detection unit and generates a scanning result based on the intraorally captured image of the anatomical structures and the detected spatial position of the intraoral scanner relative to the observer, and which, during pauses in the scanning procedure, estimates the position, orientation and scaling of the anatomical structures and, as a scanning result, generates an image of the anatomical structures corresponding to the estimation, and wherein the screen displays the scanning result generated by the computing unit.

    Device, method and system for generating dynamic projection patterns in a confocal camera
    3.
    发明授权
    Device, method and system for generating dynamic projection patterns in a confocal camera 有权

    公开(公告)号：US10753734B2

    公开(公告)日：2020-08-25

    申请号：US16003628

    申请日：2018-06-08

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Michael Tewes ,  Markus Berner

    IPC: G01B11/25

    Abstract: A device, method and system for utilizing an optical array generator, confocal measurement/depth of focus techniques to generate dynamic patterns in a camera for projection onto the surface of an object for three-dimensional (3D) measurement. Projected light patterns are used to generate optical features on the surface of an object to be measured and optical 3D measuring methods which operate according to triangulation, confocal and depth of focus principles are used to measure the object.

    Apparatus for varying a focal point of an optical system in a dental 3D-scanner and dental 3D-scanner
    4.
    发明授权
    Apparatus for varying a focal point of an optical system in a dental 3D-scanner and dental 3D-scanner 有权

    公开(公告)号：US12066686B2

    公开(公告)日：2024-08-20

    申请号：US17279148

    申请日：2019-09-27

    Applicant: DENTSPLY SIRONA inc.

    Inventor： Markus Berner ,  Martin Seib ,  Fabrizio Confalonieri

    IPC: G02B26/08 ,  A61B5/00 ,  G02B7/04 ,  G02B27/64

    CPC classification number: G02B7/04 ,  A61B5/0062 ,  A61B5/0088 ,  G02B27/646

    Abstract: The present invention relates to an apparatus for varying a focal point of an optical system in a dental 3D-scanner, comprising: a lens unit with a lens being movable between a front reversal position and a rear reversal position to vary a position of a focal point with respect to a scan object; a guide unit for guiding a movement of the lens unit between the front reversal position and the rear reversal position along a guide axis being parallel to an optical axis of the lens; and a drive unit for driving the movement of the lens unit, said drive unit including a linear motor with an anchor and a stator, said anchor being movable along a drive axis of the drive unit that is parallel to the guide axis, said stator being affixed to the guide unit. The present invention further relates to a dental 3D-scanner for scanning a three-dimensional scan object.

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