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1. 发明授权

US06480657B1 Methods of packaging polarization maintaining fibers 有权
标题翻译：包装防偏光纤的方法
公开(公告)号：US06480657B1
公开(公告)日：2002-11-12
申请号：US09583126
申请日：2000-05-30
申请人： YuZhong Dai
发明人： YuZhong Dai
IPC分类号： G02B616
CPC分类号： G02B6/105 , G02B6/4402
摘要： A packaged polarization maintaining fiber includes a cylindrical polarization maintaining fiber packaged with an elliptical packaging. The elliptical packaging includes solder securing the polarization maintaining fiber within a sleeve. The optical fast and slow axes of the polarization maintaining fiber may be aligned within the packaging to reduce the effects of eccentricity on the extinction ratio of the polarization maintaining fiber. A packaged polarization maintaining fiber is also provided having a circular cross-section. The packaging materials and dimensions may be chosen such that the stress at the interface between the polarization maintaining fiber cladding and the solder is zero, thereby reducing the chance of stress induced breakages in the fiber and reducing stress induced degradation of the extinction ratio of the polarization maintaining fiber.
摘要翻译：封装的偏振保持光纤包括用椭圆形封装包装的圆柱形保偏光纤。椭圆形包装包括将保偏光纤固定在套筒内的焊料。偏振保持光纤的光学快速和慢轴可以在封装内对准，以减少偏心对偏振保持光纤的消光比的影响。还提供了具有圆形横截面的封装的偏振保持光纤。可以选择包装材料和尺寸，使得在保偏光纤包层和焊料之间的界面处的应力为零，从而减少应力引起的纤维断裂的机会，并减少应力引起的极化消光比的降低保持纤维。

2. 发明授权

US07668214B2 Light source 有权
标题翻译：光源
公开(公告)号：US07668214B2
公开(公告)日：2010-02-23
申请号：US12116834
申请日：2008-05-07
申请人： Gordon Wilson , Xiangdong Qiu , YuZhong Dai
发明人： Gordon Wilson , Xiangdong Qiu , YuZhong Dai
IPC分类号： H01S3/10
CPC分类号： G02B27/1006 , G02B6/4296 , G02B27/143 , G02B27/145 , G02B27/30 , H01S5/005 , H01S5/02216 , H01S5/02284 , H01S5/4012 , H01S5/4056
摘要： An apparatus for coupling radiation of individual laser diode emitters into a common optical fiber is disclosed. The radiation is collimated along fast axis and combined by using crossed pairs of flat mirrors. The combined beams are collimated by a common slow axis collimating lens. The laser diode emitters are disposed on both sides of an optical axis of the slow axis collimating lens such that the optical path lengths from the emitters to the slow axis collimating lens are equal.
摘要翻译：公开了将各个激光二极管发射器的辐射耦合到公共光纤中的装置。辐射沿快轴校准，并通过使用交叉对的平面镜组合。组合的光束由普通的慢轴准直透镜准直。激光二极管发射器设置在慢轴准直透镜的光轴的两侧，使得从发射器到慢轴准直透镜的光路长度相等。

3. 发明授权

US5822877A Multi-probe system for dimensional metrology 失效
标题翻译：用于尺寸计量的多探头系统
公开(公告)号：US5822877A
公开(公告)日：1998-10-20
申请号：US670176
申请日：1996-06-20
申请人： YuZhong Dai
发明人： YuZhong Dai
IPC分类号： G01B7/012 , G01B21/04 , G01B7/03
CPC分类号： G01B21/04 , G01B7/012
摘要： A multi-probe system for dimensional metrology. This system utilizes a probe base that is attachable to a coordinate measuring machine and that includes a plurality of probes mounted at spaced-apart locations on the base. The probes are interconnected with the coordinate measuring machine and generate measurement signals based upon interaction with a workpiece. By providing a plurality of probes on a single assembly, multiple measurements can be made on a workpiece in a single measurement cycle.
摘要翻译：用于尺寸计量的多探针系统。该系统利用可附接到坐标测量机的探针基座，并且包括安装在基座上的间隔开的位置处的多个探针。探头与坐标测量机互连，并根据与工件的相互作用产生测量信号。通过在单个组件上提供多个探针，可以在单个测量循环中对工件进行多次测量。

4. 发明授权

US5671541A Accuracy verification devices for coordinate measuring machines 失效
标题翻译：坐标测量机精度验证装置
公开(公告)号：US5671541A
公开(公告)日：1997-09-30
申请号：US523048
申请日：1995-09-01
申请人： YuZhong Dai , Thomas Charlton, Jr.
发明人： YuZhong Dai , Thomas Charlton, Jr.
IPC分类号： G01B3/30 , G01B21/04
CPC分类号： G01B3/30 , G01B21/042
摘要： Devices for verifying the dimensional accuracy of a measuring instrument are provided. In one embodiment, a verification block has a substantially planar surface and a known nonplanar surface adjacent thereto. During verification, a probe attached to the CMM moves along the nonplanar surface while simultaneously contacting the planar surface and measures the features of the nonplanar surface. Any difference between the measured features and the known features of the nonplanar surface is an indication of inaccuracies in the CMM. Other embodiments of the invention include structures which compare CMM measured readings with known readings by an encoder as it moves along a linear scale. In another embodiment, the measured readings are compared to readings provided by opto-electric switches. In still another embodiment, a cam is rotatably mounted to the end of the probe of the CMM and moves the probe along the z axis as the cam moves along a surface. A predicted period based on the known cam geometry is compared to the period of motion measured by the CMM. Any difference between the measured period and the actual period is an indication of inaccuracies in the CMM.
摘要翻译：提供了用于验证测量仪器的尺寸精度的装置。在一个实施例中，验证块具有基本平坦的表面和与其相邻的已知的非平面表面。在验证期间，附接到CMM的探头沿非平面移动，同时接触平面并测量非平面表面的特征。测量特征与非平面表面的已知特征之间的任何差异表明CMM中的不准确性。本发明的其它实施例包括当CMM测量读数与沿着线性刻度移动时由编码器与已知读数进行比较的结构。在另一个实施例中，将测量的读数与由光电开关提供的读数进行比较。在另一个实施例中，凸轮可旋转地安装到CMM的探针的端部，并且随着凸轮沿着表面移动，使探针沿z轴移动。将基于已知凸轮几何形状的预测周期与由CMM测量的运动周期进行比较。测量期间和实际周期之间的任何差异表明CMM中的不准确。

5. 发明申请

US20080310027A1 Light Source 有权
标题翻译：光源
公开(公告)号：US20080310027A1
公开(公告)日：2008-12-18
申请号：US12116834
申请日：2008-05-07
申请人： Gordon Wilson , Xiangdong Qiu , YuZhong Dai
发明人： Gordon Wilson , Xiangdong Qiu , YuZhong Dai
IPC分类号： G02B27/30
CPC分类号： G02B27/1006 , G02B6/4296 , G02B27/143 , G02B27/145 , G02B27/30 , H01S5/005 , H01S5/02216 , H01S5/02284 , H01S5/4012 , H01S5/4056
摘要： An apparatus for coupling radiation of individual laser diode emitters into a common optical fiber is disclosed. The radiation is collimated along fast axis and combined by using crossed pairs of flat mirrors. The combined beams are collimated by a common slow axis collimating lens. The laser diode emitters are disposed on both sides of an optical axis of the slow axis collimating lens such that the optical path lengths from the emitters to the slow axis collimating lens are equal.
摘要翻译：公开了将各个激光二极管发射器的辐射耦合到公共光纤中的装置。辐射沿快轴校准，并通过使用交叉对的平面镜组合。组合的光束由普通的慢轴准直透镜准直。激光二极管发射器设置在慢轴准直透镜的光轴的两侧，使得从发射器到慢轴准直透镜的光路长度相等。

6. 发明授权

US5669150A Coordinate measuring machine having articulated arm 失效
标题翻译：坐标测量机具有铰接臂
公开(公告)号：US5669150A
公开(公告)日：1997-09-23
申请号：US748052
申请日：1996-11-12
申请人： Raymond J. Guertin , YuZhong Dai , Vitaly Pesikov , Walter L. Beckwith, Jr. , Thomas Charlton, Jr.
发明人： Raymond J. Guertin , YuZhong Dai , Vitaly Pesikov , Walter L. Beckwith, Jr. , Thomas Charlton, Jr.
IPC分类号： G01B5/00 , G01B5/008 , G01B7/00
CPC分类号： G01B5/008
摘要： A coordinate measuring machine includes a support structure, an articulated arm having a first end pivotally connected to the support structure and a second end that is movable in a horizontal plane. A Z-ram assembly is mounted to the second end of the articulated arm. The Z-ram assembly includes a Z-ram housing and a probe that is vertically movable with respect to the Z-ram housing. The probe is movable within a measurement volume defined by the articulated arm and the Z-ram assembly. The coordinate measuring machine further includes a measuring assembly for determining coordinates of the probe in the measurement volume. The articulated arm preferably includes first and second arm assemblies that have a parallelogram configuration to prevent substantial rotation of the Z-ram assembly as the articulated arm is moved in the horizontal plane. The angles of the articulated arm are preferably measured using a sensor which includes a pattern of parallel, straight grating lines.
摘要翻译：坐标测量机包括支撑结构，铰接臂具有枢转地连接到支撑结构的第一端和可在水平面中移动的第二端。 Z型活塞组件安装在铰接臂的第二端。 Z-ram组件包括一个Z-ram壳体和一个相对于Z-ram壳体可垂直移动的探头。探头可以在由关节臂和Z-ram组件限定的测量体积内移动。坐标测量机还包括用于确定探测器在测量体积中的坐标的测量组件。铰接臂优选地包括具有平行四边形构造的第一和第二臂组件，以防止当铰接臂在水平面中移动时Z压头组件的实质旋转。关节臂的角度优选使用包括平行的直线格栅线的图案的传感器来测量。

7. 发明授权

US5616917A Device for measuring an angle between pivotally-connected members 失效
标题翻译：用于测量枢转连接构件之间的角度的装置
公开(公告)号：US5616917A
公开(公告)日：1997-04-01
申请号：US441967
申请日：1995-05-16
申请人： YuZhong Dai
发明人： YuZhong Dai
IPC分类号： B25J3/02 , G01B11/26 , G01D5/38 , G01B11/02 , B25J9/02
CPC分类号： G01B11/26 , G01D5/38
摘要： A device for measuring an angle between pivotally connected, intersecting sides of a parallelogram includes a grating having a pattern of parallel, straight grating lines formed on a substrate, and a read head. The grating is mounted in a fixed position with respect to a first side of the parallelogram. The read head includes a sensor positioned for sensing displacement of the grating lines in response to an angular change between the intersecting sides of the parallelogram and generating a scale reading. The read head is mounted in a fixed position with respect to a second side of the parallelogram that is parallel to the first side. In one embodiment, the grating includes a single pattern of grating lines and is used to measure an angular change relative to a reference angle. In a second embodiment, the grating includes first and second grating patterns and is used to measure an absolute value of the angle between the intersecting sides of the parallelogram. The precision angle measuring device is particularly useful in coordinate measuring machines, but is not limited to such use.
摘要翻译：用于测量平行四边形的枢转连接的相交侧之间的角度的装置包括具有形成在基板上的平行的直线格栅线的图案和读取头。光栅相对于平行四边形的第一侧安装在固定位置。读头包括传感器，其被设置用于响应于平行四边形的相交侧之间的角度变化并且产生刻度读数来感测光栅线的位移。读头相对于平行四边形的平行于第一侧的第二侧被安装在固定位置。在一个实施例中，光栅包括单个图案的光栅线，并且用于测量相对于参考角度的角度变化。在第二实施例中，光栅包括第一和第二光栅图案，并且用于测量平行四边形的相交侧之间的角度的绝对值。精密角度测量装置在坐标测量机中特别有用，但不限于此。

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