Chromatic confocal system
    61.
    发明授权

    公开(公告)号:US10260869B2

    公开(公告)日:2019-04-16

    申请号:US15668197

    申请日:2017-08-03

    Abstract: A system for determining surface topography of a three-dimensional structure is provided. The system can include an illumination unit configured to output a two-dimensional array of light beams each comprising a plurality of wavelengths. An optical assembly can focus the plurality of wavelengths of each light beam to a plurality of focal lengths so as to simultaneously illuminate the structure over a two-dimensional field of view. A detector and a processor are used to generate data representative of the surface topography of the three-dimensional structure based on the measured characteristics of the light reflected from the structure.

    Apparatus and method for measuring surface topography optically

    公开(公告)号:US10258437B2

    公开(公告)日:2019-04-16

    申请号:US15811365

    申请日:2017-11-13

    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.

    Chromatic confocal system
    66.
    发明授权
    Chromatic confocal system 有权
    色共焦系统

    公开(公告)号:US09261358B2

    公开(公告)日:2016-02-16

    申请号:US14323225

    申请日:2014-07-03

    Abstract: A system for determining surface topography of a three-dimensional structure is provided. The system can include an illumination unit configured to output a two-dimensional array of light beams each comprising a plurality of wavelengths. An optical assembly can focus the plurality of wavelengths of each light beam to a plurality of focal lengths so as to simultaneously illuminate the structure over a two-dimensional field of view. A detector and a processor are used to generate data representative of the surface topography of the three-dimensional structure based on the measured characteristics of the light reflected from the structure.

    Abstract translation: 提供了一种用于确定三维结构的表面形貌的系统。 该系统可以包括被配置为输出每个包括多个波长的光束的二维阵列的照明单元。 光学组件可以将每个光束的多个波长聚焦成多个焦距,以便同时在二维视场上照亮结构。 基于从结构反射的光的测量特性,使用检测器和处理器来产生表示三维结构的表面形貌的数据。

    PROBE HEAD AND APPARATUS FOR INTRAORAL CONFOCAL IMAGING
    67.
    发明申请
    PROBE HEAD AND APPARATUS FOR INTRAORAL CONFOCAL IMAGING 有权
    探头头和装置用于内窥镜成像

    公开(公告)号:US20160015489A1

    公开(公告)日:2016-01-21

    申请号:US14334527

    申请日:2014-07-17

    Abstract: A probe head for dental confocal imaging, comprises a light-guiding part for guiding a light beam towards a teeth portion, the light-guiding part having an entrance face through which the light beam enters the light-guiding part and an exit face through which the light beam exits the light-guiding part, wherein the light-guiding part is configured, in case of a linearly polarized light beam having two polarization components being perpendicular to each other, to change polarization of the linearly polarized light beam on its path through the light-guiding part in such a way that one of the two polarization components, compared to the other of the two polarization components, is retarded by an odd multiple of a quarter of a wavelength of the light beam along the path from the entrance face to the exit face.

    Abstract translation: 用于牙科共聚焦成像的探针头包括用于将光束引向齿部分的光引导部分,所述光引导部分具有入射面,光束通过入射面进入导光部分和出射面,通过该出射面 光束离开导光部分,其中在具有两个彼此垂直的偏振分量的线性偏振光束的情况下,导光部分被配置为改变线偏振光束在其通过的路径上的偏振 导光部分以这样的方式使两个偏振分量中的一个与两个偏振分量中的另一个相比,被延迟光束沿着入射面的路径的四分之一波长的奇数倍 到出口面。

    Digital dental tray configured to enable 3D model generation

    公开(公告)号:US12295810B2

    公开(公告)日:2025-05-13

    申请号:US18410931

    申请日:2024-01-11

    Abstract: A system comprises a dental tray comprising an array of cameras, wherein each camera of the first array of cameras has a fixed position and orientation relative to one or more other camera of the array of cameras, the array of cameras configured to generate a plurality of images comprising image data of at least a portion of the dental arch. The system further comprises a processing device to receive a plurality of images generated by the array of cameras, stitch the plurality of images together based on calibration data specifying predetermined image stitching parameters for combining the plurality of images, wherein the predetermined image stitching parameters are based on predetermined fixed relative positions and orientations of cameras from the array of cameras, and generate a three-dimensional model of a plurality of teeth based on the stitched plurality of images.

    INTRAORAL 3D SCANNER WITH HIGH GAIN FACTOR

    公开(公告)号:US20250090286A1

    公开(公告)日:2025-03-20

    申请号:US18961284

    申请日:2024-11-26

    Abstract: An apparatus for determining surface topography of a patient's teeth comprises a probe sized to be at least partially inserted into an intraoral cavity of the patient, a means for outputting light, and a light focusing assembly. The light focusing assembly comprises a first lens, a second lens and a focus changing assembly comprising one or more additional lenses that shares an optical axis with the first lens and the second lens and being configured to focus the light to a plurality of external focal planes to illuminate the patient's teeth, wherein the focus changing assembly has a movement gain factor, and wherein as a result of the movement gain factor a change in separation between lenses of the focus changing assembly by a first distance results in a change in a focus setting by a second distance that is 2-10 times greater than the first distance. The apparatus further comprises a means for measuring one or more characteristics of incident light returning from the illuminated patient's teeth and a means for generating data representative of a topography of the patient's teeth based on the one or more measured characteristics of the incident light returning from the illuminated patient's teeth.

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