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    3D SCANNER USING A STRUCTURED BEAM OF PROBE LIGHT
    2.
    发明申请
    3D SCANNER USING A STRUCTURED BEAM OF PROBE LIGHT 审中-公开

    公开(公告)号：US20190162528A1

    公开(公告)日：2019-05-30

    申请号：US16312045

    申请日：2017-06-23

    Applicant: 3SHAPE A/S

    Inventor： Rasmus KJAER ,  Thomas Allin HØJGAARD ,  Herman SCHERLING

    IPC: G01B11/25 ,  A61C13/00 ,  A61C19/04 ,  A61C9/00 ,  H04N1/00 ,  H04N1/04 ,  G02B26/10

    Abstract: Disclosed is a 3D scanner for recording the 3D topography of an object, the 3D scanner including: a projector unit configured for projecting a structured beam of probe light onto the object; an imaging unit arranged to acquire 2D images of the object when the object is illuminated by the structured probe light beam; and an actuator unit arranged to control the position of the structured probe light beam at the object by rotating a movable portion of the projector unit around a pivoting axis, the actuator unit including a rotation motor including or arranged to drive a wheel, where the surface of the wheel operatively coupled to the movable portion of the projector unit has a radial distance from the axis of the rotation motor which changes with the rotation.

    FOCUS SCANNING APPARATUS
    4.
    发明申请
    FOCUS SCANNING APPARATUS 有权

    公开(公告)号：US20210306617A1

    公开(公告)日：2021-09-30

    申请号：US17340806

    申请日：2021-06-07

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Henrik ÖJELUND ,  Rasmus KJAER ,  Mike VAN DER POEL ,  Arish A. QAZI ,  Karl-Josef HOLLENBECK

    IPC: H04N13/296 ,  G01B11/25 ,  A61B5/00 ,  A61B5/107

    Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.

    INTRAORAL SCANNING APPARATUS
    8.
    发明申请
    INTRAORAL SCANNING APPARATUS 有权

    公开(公告)号：US20220272316A1

    公开(公告)日：2022-08-25

    申请号：US17742115

    申请日：2022-05-11

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Henrik ÖJELUND ,  Rasmus KJAER ,  Mike VAN DER POEL ,  Arish A. QAZI ,  Karl-Josef HOLLENBECK

    IPC: H04N13/296 ,  A61B5/00 ,  G01B11/25 ,  A61B5/107

    Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.

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