Method and arrangement for a rapid and robust chromatic confocal 3D measurement technique
    3.
    发明授权
    Method and arrangement for a rapid and robust chromatic confocal 3D measurement technique 有权
    快速稳定的彩色共聚焦3D测量技术的方法和布置

    公开(公告)号:US07787132B2

    公开(公告)日:2010-08-31

    申请号:US12223079

    申请日:2007-08-02

    IPC分类号: G01B11/24

    摘要: A chromatic confocal technique and apparatus for the rapid three-dimensional measurement of an object shape, particularly of a tooth in a patient's jaw, using an array of polychromatic point light sources, a planar detector matrix, a beam splitter for lateral spectral separation, and an objective for illuminating and recording the object. Spectral defined reference light bundles are generated, injected into the detection beam path via a reference beam path and, following spectral splitting, are focused on the detector matrix as reference image points, wherein laterally shifted sub-matrices are numerically defined on the detector matrix for spectral analysis of the object light, which sub-matrices are implemented as spectral cells for three-dimensional measurement of the shape of the object.

    摘要翻译: 一种彩色共焦技术和装置,用于使用多色点光源阵列,平面检测器矩阵,用于侧向光谱分离的分束器,快速地三维测量物体形状,特别是患者颌骨中的牙齿,并且 用于照明和记录物体的目的。 产生光谱定义的参考光束,通过参考光束路径注入到检测光束路径中,并且在光谱分裂之后,将聚焦在检测器矩阵上作为参考图像点,其中横向偏移的子矩阵在检测器矩阵上数字地定义, 对象光的光谱分析,哪些子矩阵被实现为用于对象的形状的三维测量的光谱单元。

    Optical measuring head
    4.
    发明申请
    Optical measuring head 有权
    光学测头

    公开(公告)号:US20070046935A1

    公开(公告)日:2007-03-01

    申请号:US11514538

    申请日:2006-09-02

    IPC分类号: G01J3/28 G01N21/00

    CPC分类号: G01B11/24 G01B2210/50

    摘要: A measuring head (4) according to the invention comprises the combination of a zone lens (26), which is preferably a diffractive lens, with a hemispherical lens (23) or a GRIN lens (33). This represents a concept capable of miniaturization, resulting in very slender measuring heads (4) having a high numeric aperture and, accordingly, leads to the best resolution capacity. Such measuring heads are insensitive to angular errors as concerns the orientation of the measuring head to the surface to be measured or to an oblique positioning of the surface relative to the optical axis of the measuring head.

    摘要翻译: 根据本发明的测量头(4)包括优选为衍射透镜的区域透镜(26)与半球形透镜(23)或GRIN透镜(33)的组合。 这表示能够小型化的概念,导致具有高数值孔径的非常细长的测量头(4),并因此导致最佳分辨能力。 这样的测量头对于测量头对被测量表面的取向或相对于测量头的光轴的倾斜定位而对角度误差不敏感。

    DEVICE AND METHOD FOR OPTICALLY COMPENSATING FOR THE MEASURING TRACK DECENTRALIZATION IN ROTATION ANGLE SENSORS
    5.
    发明申请
    DEVICE AND METHOD FOR OPTICALLY COMPENSATING FOR THE MEASURING TRACK DECENTRALIZATION IN ROTATION ANGLE SENSORS 有权
    旋转角传感器测量轨迹分散光学补偿的装置和方法

    公开(公告)号:US20120168615A1

    公开(公告)日:2012-07-05

    申请号:US13395436

    申请日:2010-09-08

    IPC分类号: G01D5/34

    摘要: The invention relates to an improved encoding disk for an optical rotation angle sensor or a rotary encoder, an optical rotation sensor or rotary encoder comprising an improved encoding disk, and a method for optically correcting or compensating for an angle measuring error of a rotary encoder, in particular an angle measuring error which is contingent on a displacement or decentralization of the encoding disk. The encoding disk (20) comprises at least one measuring track (22) and at least one compensating track (24), wherein the measuring track (22) is in a first radial region of the encoding disk (20); and the compensating track (24) is centered with regard to the measuring track (22) on a second radial region of the encoding disk (20) so that the center of the measuring track (22) coincides with the center of the compensating track (24). The compensating track (24) is preferably designed such that at least one part of the light incident on a region of the compensating track is deflected by the compensating track (24) radially in the direction of the axis through the common center of the compensating track (24) and the measuring track (22). The direction of the readout light which is deflected by the compensating track preferably intersects the axis through the common center of the compensating track and the measuring track, wherein the distance between the compensating track and said intersection corresponds to the length of the light path between the compensating track and the measuring track. The readout light can be coherent or incoherent. The radius of the compensating track can be less than, greater than, or equal to the radius of the measuring track. The compensating track (24) preferably has a diffractive structure.

    摘要翻译: 本发明涉及一种用于光学旋转角度传感器或旋转编码器的改进的编码盘,包括改进的编码盘的光学旋转传感器或旋转编码器,以及用于光学校正或补偿旋转编码器的角度测量误差的方法, 特别是角度测量误差,其取决于编码盘的位移或分散。 所述编码盘(20)包括至少一个测量轨道(22)和至少一个补偿轨道(24),其中所述测量轨道(22)位于所述编码盘(20)的第一径向区域中。 并且补偿轨道(24)相对于编码盘(20)的第二径向区域上的测量轨道(22)居中,使得测量轨道(22)的中心与补偿轨道的中心 24)。 补偿轨道(24)优选地被设计成使得入射在补偿轨道的区域上的光的至少一部分通过补偿轨道(24)在轴线的方向上径向偏转通过补偿轨道的公共中心 (24)和测量轨道(22)。 由补偿轨道偏转的读出光的方向优选地通过补偿轨道和测量轨道的公共中心与轴相交,其中补偿轨道和所述交点之间的距离对应于 补偿轨道和测量轨道。 读出光可以是相干或不相干的。 补偿轨道的半径可以小于,大于或等于测量轨迹的半径。 补偿轨道(24)优选具有衍射结构。

    Optical measuring head
    6.
    发明授权
    Optical measuring head 有权
    光学测头

    公开(公告)号:US07486394B2

    公开(公告)日:2009-02-03

    申请号:US11514538

    申请日:2006-09-02

    IPC分类号: G01J3/00

    CPC分类号: G01B11/24 G01B2210/50

    摘要: A measuring head (4) according to the invention comprises the combination of a zone lens (26), which is preferably a diffractive lens, with a hemispherical lens (23) or a GRIN lens (33). This represents a concept capable of miniaturization, resulting in very slender measuring heads (4) having a high numeric aperture and, accordingly, leads to the best resolution capacity. Such measuring heads are insensitive to angular errors as concerns the orientation of the measuring head to the surface to be measured or to an oblique positioning of the surface relative to the optical axis of the measuring head.

    摘要翻译: 根据本发明的测量头(4)包括优选为衍射透镜的区域透镜(26)与半球形透镜(23)或GRIN透镜(33)的组合。 这表示能够小型化的概念,导致具有高数值孔径的非常细长的测量头(4),并因此导致最佳分辨能力。 这样的测量头对于测量头对被测量表面的取向或相对于测量头的光轴的倾斜定位而对角度误差不敏感。

    Method and arrangement for short coherence holography
    7.
    发明授权
    Method and arrangement for short coherence holography 有权
    短相干全息术的方法和布置

    公开(公告)号:US09175954B2

    公开(公告)日:2015-11-03

    申请号:US14110100

    申请日:2011-12-23

    摘要: The invention relates to a method and arrangement for short coherence holography for distance measurement, for profile detection and/or for 3D detection of one or more object elements and/or object areas and/or objects or for readout of holographic volume memories with a holographic interferometer and with at least one short coherence light source. For each optically detected object element in the hologram the holographic interferometer has an optical path difference clearly unequal to zero. At least one spectrally integrally detecting, rastered detector is arranged. The short coherence light source with frequency comb is designed with the optical delay length Y1. Detected holograms are digitally reconstructed. Relative distances of object elements are digitally calculated from the hologram reconstructions, so that a 3D point cloud of object elements and/or object areas and/or objects is produced. Data can be read out optically in parallelized form from holographic volume memories or three-dimensionally structured signatures.

    摘要翻译: 本发明涉及一种用于距离测量的短相干全息术的方法和装置,用于轮廓检测和/或用于一个或多个对象元件和/或物体区域和/或物体的3D检测或用于全息存储的全息体积存储器的读出 干涉仪和至少一个短相干光源。 对于全息图中的每个光学检测的对象元件,全息干涉仪具有明显不等于零的光程差。 至少一个光谱整体检测,被检测器被布置。 具有频率梳的短相干光源设计有光延迟长度Y1。 检测到的全息图经数字重建。 对象元素的相对距离由全息图重建数字计算,从而产生对象元素和/或对象区域和/或对象的3D点云。 数据可以从全息体积存储器或三维结构的签名以光学方式读出。

    Device and method for optically compensating for the measuring track decentralization in rotation angle sensors
    8.
    发明授权
    Device and method for optically compensating for the measuring track decentralization in rotation angle sensors 有权
    用于光学补偿旋转角度传感器中的测量轨道分散的装置和方法

    公开(公告)号:US09068862B2

    公开(公告)日:2015-06-30

    申请号:US13395436

    申请日:2010-09-08

    IPC分类号: G01D5/34 G01D5/244 G01D5/347

    摘要: The invention relates to an improved encoding disk for an optical rotation angle sensor or a rotary encoder, an optical rotation sensor or rotary encoder comprising an improved encoding disk, and a method for optically correcting or compensating for an angle measuring error of a rotary encoder, in particular an angle measuring error which is contingent on a displacement or decentralization of the encoding disk. The encoding disk (20) comprises at least one measuring track (22) and at least one compensating track (24), wherein the measuring track (22) is in a first radial region of the encoding disk (20); and the compensating track (24) is centered with regard to the measuring track (22) on a second radial region of the encoding disk (20) so that the center of the measuring track (22) coincides with the center of the compensating track (24). The compensating track (24) is preferably designed such that at least one part of the light incident on a region of the compensating track is deflected by the compensating track (24) radially in the direction of the axis through the common center of the compensating track (24) and the measuring track (22). The direction of the readout light which is deflected by the compensating track preferably intersects the axis through the common center of the compensating track and the measuring track, wherein the distance between the compensating track and said intersection corresponds to the length of the light path between the compensating track and the measuring track. The readout light can be coherent or incoherent. The radius of the compensating track can be less than, greater than, or equal to the radius of the measuring track. The compensating track (24) preferably has a diffractive structure.

    摘要翻译: 本发明涉及一种用于光学旋转角度传感器或旋转编码器的改进的编码盘,包括改进的编码盘的光学旋转传感器或旋转编码器,以及用于光学校正或补偿旋转编码器的角度测量误差的方法, 特别是角度测量误差,其取决于编码盘的位移或分散。 编码盘(20)包括至少一个测量轨道(22)和至少一个补偿轨道(24),其中测量轨道(22)位于编码盘(20)的第一径向区域中。 并且补偿轨道(24)相对于编码盘(20)的第二径向区域上的测量轨道(22)居中,使得测量轨道(22)的中心与补偿轨道的中心 24)。 补偿轨道(24)优选地被设计成使得入射在补偿轨道的区域上的光的至少一部分被补偿轨道(24)沿着轴线的方向径向偏转通过补偿轨道的公共中心 (24)和测量轨道(22)。 由补偿轨道偏转的读出光的方向优选地通过补偿轨道和测量轨道的公共中心与轴相交,其中补偿轨道和所述交点之间的距离对应于光路之间的距离 补偿轨道和测量轨道。 读出光可以是相干或不相干的。 补偿轨道的半径可以小于,大于或等于测量轨迹的半径。 补偿轨道(24)优选具有衍射结构。

    METHOD AND ARRANGEMENT FOR ROBUST INTERFEROMETRY
    9.
    发明申请
    METHOD AND ARRANGEMENT FOR ROBUST INTERFEROMETRY 有权
    用于稳健干涉测量的方法和装置

    公开(公告)号:US20120307258A1

    公开(公告)日:2012-12-06

    申请号:US13574707

    申请日:2011-01-21

    IPC分类号: G01B11/02 G01B9/02

    摘要: An arrangement and a method are provided for robust interferometry for detecting distance, depth, profile, form, undulation, flatness deviation and/or roughness or the optical path length in or on technical or biological objects, including in layered form, or else for optical coherence tomography (OCT), with a source of electromagnetic radiation and with an interferometer, in particular also in the form of an interference microscope, having an object beam path and having a reference beam path, in which an end reflector is arranged, and a line-scan detector for detecting electromagnetic radiation in the form of at least one spatial interferogram.

    摘要翻译: 提供了用于鲁棒干涉测量的装置和方法,用于检测技术或生物物体中或技术或生物物体上的距离,深度,轮廓,形状,起伏,平坦度偏差和/或粗糙度或光路长度,包括分层形式,或者用于光学 具有电磁辐射源和干涉仪的相干断层摄影(OCT),特别是干涉显微镜的形式,具有物镜光束路径并具有参考光束路径,其中布置有端反射器,以及 行扫描检测器,用于以至少一个空间干涉图的形式检测电磁辐射。

    Method and arrangement for robust interferometry for detecting a feature of an object
    10.
    发明授权
    Method and arrangement for robust interferometry for detecting a feature of an object 有权
    用于检测物体特征的鲁棒干涉测量的方法和装置

    公开(公告)号:US08934104B2

    公开(公告)日:2015-01-13

    申请号:US13574707

    申请日:2011-01-21

    IPC分类号: G01B11/02 G01B9/02

    摘要: An arrangement and a method are provided for robust interferometry for detecting distance, depth, profile, form, undulation, flatness deviation and/or roughness or the optical path length in or on technical or biological objects, including in layered form, or else for optical coherence tomography (OCT), with a source of electromagnetic radiation and with an interferometer, in particular also in the form of an interference microscope, having an object beam path and having a reference beam path, in which an end reflector is arranged, and a line-scan detector for detecting electromagnetic radiation in the form of at least one spatial interferogram.

    摘要翻译: 提供了用于鲁棒干涉测量的装置和方法,用于检测技术或生物物体中或技术或生物物体上的距离,深度,轮廓,形状,起伏,平坦度偏差和/或粗糙度或光路长度,包括分层形式,或者用于光学 具有电磁辐射源和干涉仪的相干断层摄影(OCT),特别是干涉显微镜的形式,具有物镜光束路径并具有参考光束路径,其中布置有端反射器,以及 行扫描检测器,用于以至少一个空间干涉图的形式检测电磁辐射。