Automatic alignment of a 3D model to a test object

    公开(公告)号:US10579890B2

    公开(公告)日:2020-03-03

    申请号:US15890488

    申请日:2018-02-07

    摘要: A method of aligning a 3D CAD model to a test object in a machine vision system comprising steps of orienting the 3D CAD model in a model window, placing the test object on a motion stage in an orientation approximately matching the orientation of the 3D model, taking a video image of the test object with the video camera and extracting a peripheral boundary in a datum plane normal to the viewing axis of the video camera, extracting a silhouette boundary of the 3D model in a corresponding datum plane, relatively positioning the silhouette boundary of the 3D model to match the peripheral boundary of the test object using a fitting algorithm, and matching coordinates of points in the 3D model to coordinates of corresponding points of the test object referenced within the corresponding datum plane and along the viewing axis.

    Moving bridge coordinate measuring machine

    公开(公告)号:US10443998B2

    公开(公告)日:2019-10-15

    申请号:US15693598

    申请日:2017-09-01

    发明人: Guglielmo Raho

    IPC分类号: G01B5/004 G01B21/04 G01B5/008

    摘要: A recess or “pocket” is formed in at least one leg of a moving bridge assembly of a coordinate measuring machine, and in a particular embodiment in a primary leg of a moving bridge assembly, to permit a quill to move farther in the X direction to an end of a planar base surface of the coordinate measuring machine adjacent the leg without interfering with the leg. The recess formed in the leg of the moving bridge assembly permits coordinate measurements of a part whose width covers the full area of the planar surface of the base, without necessarily adding significant cost or increasing the footprint of the measurement system.

    Optical pen for interferometric measuring machine

    公开(公告)号:US10107614B1

    公开(公告)日:2018-10-23

    申请号:US15490749

    申请日:2017-04-18

    发明人: David B. Kay

    IPC分类号: G01B9/02 G01B11/14

    摘要: An optical pen for an optical measurement system includes a probe body arranged to be adjustably mounted in a measuring machine for optically measuring a test object. A single mode fiber optically coupled within the pen body transmits a source beam having an instantaneous or sequentially established bandwidth spanning a range of wavelengths to the pen body and also transmits a measurement beam from the pen body toward a detector. A combination and configuration of optics within the pen body provides a more compact and efficient optical pen.

    Method Of Establishing Multi-Sensor Measuring Machine Routines
    64.
    发明申请
    Method Of Establishing Multi-Sensor Measuring Machine Routines 审中-公开
    建立多传感器测量机程序的方法

    公开(公告)号:US20150286384A1

    公开(公告)日:2015-10-08

    申请号:US14247339

    申请日:2014-04-08

    IPC分类号: G06F3/0484 G06F17/50

    CPC分类号: G06F17/50 G01B21/04

    摘要: Measurement routines are established for automating multi-sensor measuring machines. Selections of feature types, sensor types, and closest points on computer models information is processed for distinguishing whether the features intended for measurement lie on a boundary or on a surface of the part to be measured. Interactions through a graphical user interface to a code-generating computer allow for the selections to be made and corresponding measurement instructions to be generated.

    摘要翻译: 建立了用于自动化多传感器测量机的测量程序。 处理特征类型,传感器类型以及计算机型号信息上的最近点的选择,以区分要测量的特征是否位于要测量的部分的边界或表面上。 通过图形用户界面与代码生成计算机的交互允许进行选择并生成对应的测量指令。

    Probe deployment mechanism of measuring machine with isolated locator coupling
    65.
    发明授权
    Probe deployment mechanism of measuring machine with isolated locator coupling 有权
    带有隔离定位器耦合的测量机探头部署机构

    公开(公告)号:US09009985B2

    公开(公告)日:2015-04-21

    申请号:US13873324

    申请日:2013-04-30

    IPC分类号: G01B5/012 G01B21/04

    CPC分类号: G01B21/047 G01B5/012

    摘要: A probe deployment mechanism of a coordinate measuring machine provides for extending and retracting a probe. The probe is displaceable with respect to the actuator body connected to the measuring machine. A locator coupling secures the probe to the actuator body at the extended position for taking measurements. A drive coupled to the probe displaces the probe between the extended and retracted positions but at the extended position, the drive is releasable from the probe for kinetically isolating the locator coupling.

    摘要翻译: 坐标测量机的探头展开机构用于延伸和缩回探头。 探针可相对于连接到测量机的致动器主体移位。 定位器联接器将探头固定在致动器主体的延伸位置以进行测量。 耦合到探针的驱动器将探针置于延伸位置和缩回位置之间,但是在延伸位置处,驱动器可从探头释放,以动态隔离定位器联接。

    THROUGH-THE-LENS ILLUMINATOR FOR OPTICAL COMPARATOR
    66.
    发明申请
    THROUGH-THE-LENS ILLUMINATOR FOR OPTICAL COMPARATOR 有权
    光学比较器的透镜照明器

    公开(公告)号:US20120127468A1

    公开(公告)日:2012-05-24

    申请号:US12948903

    申请日:2010-11-18

    IPC分类号: G01B9/08 G02B21/06

    摘要: An illumination system shares portions of an objective of an optical inspection system. A plurality of beam-shaping optics collects light from a plurality of effective light sources and directs the light through a portion of the objective for illuminating an object under inspection. The objective includes a front relay lens, a rear relay lens, and an objective stop disposed between the front and rear relay lenses for collecting light scattered from the object and forming an image of the object with the collected light. The beam-shaping optics, which surround the objective stop, are arranged together with the associated effective light sources for non-uniformly distributing light within a range of angles required for illuminating the object.

    摘要翻译: 照明系统共享光学检查系统的目标的一部分。 多个光束成形光学器件收集来自多个有效光源的光并且引导光通过物镜的一部分以照射被检查物体。 该目的包括前中继透镜,后继透镜和设置在前后中继透镜之间的物镜,用于收集从物体散射的光并利用所收集的光形成物体的图像。 围绕物镜停止的光束整形光学器件与相关联的有效光源一起布置,用于在照射物体所需的角度范围内不均匀地分布光。

    Fitting measured data points to tolerance zones having regard for the uncertainty of the measurements
    67.
    发明授权
    Fitting measured data points to tolerance zones having regard for the uncertainty of the measurements 有权
    考虑到测量的不确定性,将测量数据拟合到公差带

    公开(公告)号:US07983868B2

    公开(公告)日:2011-07-19

    申请号:US12139127

    申请日:2008-06-13

    IPC分类号: G06F19/00 G06F17/40

    CPC分类号: G05B19/401

    摘要: Measurement data collected within a measurement frame of reference is fitted to geometric tolerance zones having regard for the uncertainties of the measurement. Geometric freedoms for fitting the measurement data are exploited to fit uncertainty zones associated with the measurement data within the tolerance zones. Typically, the measurement data is multidimensional and the uncertainty zones have different sizes.

    摘要翻译: 在考虑到测量的不确定性的情况下,将测量参考系中收集的测量数据拟合到几何公差区域。 用于拟合测量数据的几何自由被利用来适应与公差区域内的测量数据相关联的不确定区域。 通常,测量数据是多维度的,不确定区域具有不同的尺寸。

    Method and apparatus for maximum light intensity for an optical illumination system
    68.
    发明授权
    Method and apparatus for maximum light intensity for an optical illumination system 有权
    用于光学照明系统的最大光强度的方法和装置

    公开(公告)号:US07796340B2

    公开(公告)日:2010-09-14

    申请号:US11784126

    申请日:2007-04-05

    申请人: Stephanie Bloch

    发明人: Stephanie Bloch

    IPC分类号: G02B27/12 G02B26/08

    CPC分类号: G02B27/0905

    摘要: An illumination system using, in place of a more typical beam splitter, two right angle triangular prisms that are aligned to each other along their respective hypotenuses to form a cube, but without any reflective materials being used at their interface, and with the two halves separated by some distance so as to create an open/air gap between the two halves. When the upper/lower cube faces are normal to an optical axis of the illumination system, the cube structure reflects virtually all of the illumination from a transverse illumination source using total internal reflection so that said illumination is reflected out of the cube along the system's optical axis. However, rotating the cube structure past the critical angle eliminates total internal reflection and allows the cube to transmit almost all illumination entering the cube out of the cube parallel to the system's optical axis.

    摘要翻译: 一种照明系统,代替更典型的分束器,使用两个直角三角棱镜,它们沿其相应的斜边相互对准,以形成立方体,但在其界面处没有使用任何反射材料,并且两个半 分开一段距离,以便在两个半部之间产生开/气间隙。 当上/下立方体面垂直于照明系统的光轴时,立方体结构使用全内反射实际上反射来自横向照明源的所有照明,使得所述照明沿着系统的光学被反射出立方体 轴。 然而,将立方体结构旋转超过临界角度消除了全内反射,并允许立方体将平行于系统的光轴的立方体几乎所有进入立方体的照射传出立方体。

    COMBINING FEATURE BOUNDARIES
    69.
    发明申请
    COMBINING FEATURE BOUNDARIES 有权
    组合特征边界

    公开(公告)号:US20100104216A1

    公开(公告)日:2010-04-29

    申请号:US12259845

    申请日:2008-10-28

    IPC分类号: G06K9/54

    摘要: A method of forming a combined feature boundary based on boundaries of first and second overlapping features includes dividing the boundaries of the first and second overlapping features into line segments of known shape, identifying crossing points formed by the line segments, calculating parametric coordinates of the crossing points, and determining a sequence of crossing point evaluation based on the parametric coordinates. The method also includes calculating a first cross product based on the line segments forming a first crossing point in the determined sequence, and choosing a first path of the combined feature boundary according to a mathematical sign of the first cross product, the first path extending from the first crossing point to the second crossing point in the determined sequence. The method further includes calculating a second cross product based on the line segments forming a second crossing point in the sequence, and choosing a second path of the combined feature boundary extending from the second crossing point according to a mathematical sign of the second cross product, wherein the combined feature boundary includes the first and second crossing points and portions of at least one of the first and second feature boundaries defining the first and second paths.

    摘要翻译: 基于第一和第二重叠特征的边界形成组合特征边界的方法包括将第一和第二重叠特征的边界划分成已知形状的线段,识别由线段形成的交叉点,计算交叉点的参数坐标 点,并且基于参数坐标确定交叉点评估的序列。 该方法还包括基于在所确定的序列中形成第一交叉点的线段计算第一交叉积,以及根据第一交叉积的数学符号选择组合特征边界的第一路径,第一路径从 在确定的序列中的第一个交叉点到第二个交叉点。 该方法还包括基于在该序列中形成第二交叉点的线段计算第二交叉乘积,以及根据第二交叉乘积的数学符号选择从第二交叉点延伸的组合特征边界的第二路径, 其中所述组合特征边界包括所述第一和第二交叉点以及限定所述第一和第二路径的所述第一和第二特征边界中的至少一个的部分。

    OPTICAL COMPARATOR USING LIGHT- EMITTING DIODE LIGHT SOURCES
    70.
    发明申请
    OPTICAL COMPARATOR USING LIGHT- EMITTING DIODE LIGHT SOURCES 审中-公开
    使用发光二极管光源的光学比较器

    公开(公告)号:US20090153860A1

    公开(公告)日:2009-06-18

    申请号:US11958079

    申请日:2007-12-17

    IPC分类号: G01B9/08

    CPC分类号: G01N21/8806 G02B27/026

    摘要: The invention provides a source of illumination comprising a base having mounted thereon at least one light-emitting diode light source, a parabolic reflector mounted on the base and surrounding the at least one light-emitting diode, and a transmissive diffuser at the narrow end of the parabolic reflector.

    摘要翻译: 本发明提供一种照明源,包括其上安装有至少一个发光二极管光源的基座,安装在基座上并围绕至少一个发光二极管的抛物面反射器,以及在窄端 抛物面反射器。