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    Apparatus and method for measuring surface topography optically
    11.
    发明授权
    Apparatus and method for measuring surface topography optically 有权

    公开(公告)号：US10743967B2

    公开(公告)日：2020-08-18

    申请号：US16287120

    申请日：2019-02-27

    Applicant: Align Technology, Inc.

    Inventor： Yossef Atiya ,  Tal Verker

    IPC: A61C9/00 ,  A61B5/00 ,  A61B1/00 ,  A61B1/06 ,  A61B1/247 ,  A61C1/08 ,  G01B11/30 ,  G01B11/24

    Abstract: An apparatus is described for determining surface topography of a three-dimensional structure. The apparatus can include a probe and an illumination unit configured to output a plurality of light beams. In many embodiments, the apparatus includes a light focusing assembly. The light focusing assembly can receive and focus each of a plurality of light beams to a respective external focal point. The light focusing assembly can be configured to overlap the plurality of light beams within a focus changing assembly in order to move the external focal points along a direction of propagation of the light beams. The apparatus can include a detector having an array of sensing elements configured to measure a characteristic of each of a plurality of light beams returning from the illuminated spots and a processor coupled to the detector and configured to generate data representative of topography of the structure based on the measured characteristic.

    APPARATUS FOR DENTAL CONFOCAL IMAGING
    12.
    发明申请
    APPARATUS FOR DENTAL CONFOCAL IMAGING 审中-公开

    公开(公告)号：US20200214574A1

    公开(公告)日：2020-07-09

    申请号：US16820505

    申请日：2020-03-16

    Applicant: Align Technology, Inc.

    Inventor： Yossef Atiya ,  Tal Verker ,  Nir Makmel

    IPC: A61B5/00 ,  G02B13/16 ,  G02B6/26 ,  F21V8/00 ,  G01B11/24 ,  G01B11/245 ,  A61C9/00 ,  G02B5/04 ,  G02B23/24

    Abstract: An apparatus for dental confocal imaging comprises an illumination module for generating an array of light beams, an optics system for confocal focusing of the array of light beams and a probe head with a light-guiding part having an entrance face and an exit face. The illumination module, the optics system and the probe head are arranged such that the array of light beams from the illumination module passes through the optics system, enters the light-guiding part via the entrance face and exits the light-guiding part via the exit face. The optics system is configured such that, after having passed through the optics system, the outermost marginal rays of the outermost light beams with respect to the optical axis of the optics system are parallel or divergent to the optical axis.

    INTRAORAL SCANNER
    17.
    发明申请
    INTRAORAL SCANNER 有权

    公开(公告)号：US20250127598A1

    公开(公告)日：2025-04-24

    申请号：US18913010

    申请日：2024-10-11

    Applicant: Align Technology, Inc.

    Inventor： Yossef Y. Atiya ,  Ido Tishel ,  Avi Kopelman ,  Ofer Saphier ,  Nadav Fain ,  Eddy Pincu ,  Tal Verker ,  Nir Makmel ,  Asaf Pellman

    IPC: A61C9/00

    Abstract: An intraoral scanner includes a probe housing disposed at a distal end of an elongate wand. The intraoral scanner further includes a window structure coupled to the probe housing. The window structure and the probe housing form an interior volume. The window structure has a concave transverse cross section. The intraoral scanner further includes optical components disposed within the interior volume. The optical components include a first camera having a first orientation and a second camera having a second orientation that is different than the first orientation. The first camera and the second camera are to capture images of dental sites.

    Automatic calibration of intraoral 3D scanner
    18.
    发明授权
    Automatic calibration of intraoral 3D scanner 有权

    公开(公告)号：US12143558B2

    公开(公告)日：2024-11-12

    申请号：US18418209

    申请日：2024-01-19

    Applicant: Align Technology, Inc.

    Inventor： Ofer Saphier ,  Tal Levy ,  Gal Peleg ,  Eliran Dafna ,  Sergei Ozerov ,  Tal Verker ,  Nir Makmel ,  Yossef Atiya

    IPC: H04N13/204 ,  G01B11/25 ,  G06T7/521 ,  H04N1/00

    Abstract: An intraoral scanner comprises one or more structured light projectors and two or more cameras, where each structured light projector projects a pattern of light onto an intraoral three-dimensional (3D) surface and the two or more cameras capture one or more sets of images, wherein each image includes at least a portion of the projected pattern of light. A processor solves a correspondence problem within a set of images of the one or more sets of images such that points in 3D space are determined based on correspondence of captured features in the set of images to projected features of at least the portion of the projected pattern, wherein said points in 3D space form a solution to the correspondence problem. The processor calibrates the intraoral scanner by performing an adjustment to stored calibration data associated with the intraoral scanner based on the solution to the correspondence problem.

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