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    Systems and methods for measuring the shape and location of an object
    3.
    发明授权
    Systems and methods for measuring the shape and location of an object 有权
    用于测量物体的形状和位置的系统和方法

    公开(公告)号：US07988290B2

    公开(公告)日：2011-08-02

    申请号：US12347909

    申请日：2008-12-31

    申请人： Charles E. Campbell ,  Stephen W. Farrer ,  Daniel R. Neal ,  William S. Powers ,  Thomas D. Raymond ,  James Copland

    发明人： Charles E. Campbell ,  Stephen W. Farrer ,  Daniel R. Neal ,  William S. Powers ,  Thomas D. Raymond ,  James Copland

    IPC分类号： A61B3/10

    CPC分类号： A61B3/0091 ,  A61B3/107 ,  A61B3/145 ,  G01B11/25 ,  G01B11/255

    摘要： A system for determining the shape of an object and/or a distance of the object from the system includes a first plurality of light source, a second plurality of light sources, and a detector or detector array. The first plurality of light sources are disposed about a central axis and are separated from the central axis by radial distances defining an aperture in the first plurality of light sources. The system also includes an optical system adapted to provide light from the second plurality of light sources through the aperture to the object. The system may further include a computer configured to determine the shape of the object and/or the distance of the object from the system using light from the first and second plurality of light sources that is reflected from the object and received by the detector.

    摘要翻译： 用于确定物体的形状和/或物体与系统的距离的系统包括第一多个光源，第二多个光源以及检测器或检测器阵列。 第一多个光源围绕中心轴设置，并且通过限定第一多个光源中的孔的径向距离与中心轴分离。 该系统还包括适于将来自第二多个光源的光通过孔提供给物体的光学系统。 该系统可以进一步包括计算机，该计算机被配置为使用来自被检体的被反射并由检测器接收的来自第一和第二多个光源的光来确定物体的形状和/或物体与系统的距离。

    System and method for characterizing corneal surfaces
    4.
    发明授权
    System and method for characterizing corneal surfaces 有权
    用于表征角膜表面的系统和方法

    公开(公告)号：US07967440B1

    公开(公告)日：2011-06-28

    申请号：US12693106

    申请日：2010-01-25

    申请人： James Copland ,  Daniel R. Neal ,  Thomas D. Raymond ,  Stephen W. Farrer ,  Paul Pulaski

    发明人： James Copland ,  Daniel R. Neal ,  Thomas D. Raymond ,  Stephen W. Farrer ,  Paul Pulaski

    IPC分类号： A61B3/10

    CPC分类号： A61B3/107 ,  A61B3/1005

    摘要： A system includes a light pattern generator having light spots for illuminating front and back surfaces of a cornea with polarized light; one or more detectors for receiving one or more of first spot images from light reflected off the front surface, and second spot images from light reflected off the back surface, the light reflected off the front surface having a first polarization and the light reflected off the back surface having a second polarization; a polarization element in an optical path between the back surface and the one or more detectors, the polarization element being configured to attenuate an intensity of the light reflected off the front surface by an amount greater than an amount by which it attenuates the light reflected off the back surface; and a processor for determining a geometric characteristic of the cornea using at least the second plurality of spot images.

    摘要翻译： 一种系统包括具有用于照射具有偏振光的角膜的前后表面的光斑的光图案发生器; 一个或多个检测器，用于从从前表面反射的光接收一个或多个第一斑点图像，以及从背面反射的光的第二斑点图像，从前表面反射的光具有第一偏振和从该表面反射的光 具有第二偏振的背面; 在所述背表面和所述一个或多个检测器之间的光路中的偏振元件，所述偏振元件被配置为衰减从所述前表面反射的光的强度大于其衰减反射的光的量 背面; 以及处理器，用于使用至少第二多个斑点图像确定角膜的几何特征。

    Systems and Methods for Measuring the Shape and Location of an object
    6.
    发明申请
    Systems and Methods for Measuring the Shape and Location of an object 有权
    用于测量物体的形状和位置的系统和方法

    公开(公告)号：US20090161090A1

    公开(公告)日：2009-06-25

    申请号：US12347909

    申请日：2008-12-31

    申请人： Charles E. Campbell ,  Stephen W. Farrer ,  Daniel R. Neal ,  William S. Powers ,  Thomas D. Raymond ,  James Copland

    发明人： Charles E. Campbell ,  Stephen W. Farrer ,  Daniel R. Neal ,  William S. Powers ,  Thomas D. Raymond ,  James Copland

    IPC分类号： G01B11/255 ,  G01B11/25 ,  G01M11/08 ,  A61B3/107 ,  G01C5/00

    CPC分类号： A61B3/0091 ,  A61B3/107 ,  A61B3/145 ,  G01B11/25 ,  G01B11/255

    摘要： A system for determining the shape of an object and/or a distance of the object from the system includes a first plurality of light source, a second plurality of light sources, and a detector or detector array. The first plurality of light sources are disposed about a central axis and are separated from the central axis by radial distances defining an aperture in the first plurality of light sources. The system also includes an optical system adapted to provide light from the second plurality of light sources through the aperture to the object. The system may further include a computer configured to determine the shape of the object and/or the distance of the object from the system using light from the first and second plurality of light sources that is reflected from the object and received by the detector.

    摘要翻译： 用于确定物体的形状和/或物体与系统的距离的系统包括第一多个光源，第二多个光源以及检测器或检测器阵列。 第一多个光源围绕中心轴设置，并且通过限定第一多个光源中的孔的径向距离与中心轴分离。 该系统还包括适于将来自第二多个光源的光通过孔提供给物体的光学系统。 该系统可以进一步包括计算机，该计算机被配置为使用来自被检体的被反射并由检测器接收的来自第一和第二多个光源的光来确定物体的形状和/或物体与系统的距离。

    Systems and methods for measuring surface shape
    7.
    发明授权
    Systems and methods for measuring surface shape 有权
    用于测量表面形状的系统和方法

    公开(公告)号：US08260024B2

    公开(公告)日：2012-09-04

    申请号：US13356131

    申请日：2012-01-23

    申请人： Stephen W Farrer ,  James Copland ,  Thomas D Raymond ,  Wei Xiong

    发明人： Stephen W Farrer ,  James Copland ,  Thomas D Raymond ,  Wei Xiong

    IPC分类号： G06K9/00

    CPC分类号： G01B11/2513 ,  A61B3/107 ,  G01M11/005 ,  G01M11/025 ,  G01M11/0264

    摘要： A system for determining a surface shape of a test object includes a pattern having a plurality of first elements dispose about a central axis and defining an aperture containing the central axis. The first elements includes a plurality of common elements having a common form and a reference element having a reference form that is different than the common form. The system further comprises a detector array and an optical system. The optical system is adapted to provide an image of the first elements when light reflects off a surface of a test object, passes through the aperture, and is received by the detector array. The reference form may be configured to facilitate an association between the common elements and the spot images of the common elements.

    摘要翻译： 用于确定测试对象的表面形状的系统包括具有围绕中心轴布置并且限定包含中心轴线的孔的多个第一元件的图案。 第一元件包括具有共同形式的多个公共元件和具有不同于通用形式的参考形式的参考元件。 该系统还包括检测器阵列和光学系统。 当光从测试对象的表面反射出来时，该光学系统适于提供第一元件的图像，通过该孔并由检测器阵列接收。 参考表格可以被配置为便于公共元素与公共元素的斑点图像之间的关联。

    METHOD OF VERIFYING PERFORMANCE OF AN OPTICAL MEASUREMENT INSTRUMENT WITH A MODEL EYE AND AN OPTICAL MEASUREMENT INSTRUMENT EMPLOYING SUCH A METHOD
    9.
    发明申请
    METHOD OF VERIFYING PERFORMANCE OF AN OPTICAL MEASUREMENT INSTRUMENT WITH A MODEL EYE AND AN OPTICAL MEASUREMENT INSTRUMENT EMPLOYING SUCH A METHOD 有权
    使用模型眼睛验证光学测量仪器的性能的方法和使用这种方法的光学测量仪器

    公开(公告)号：US20120300196A1

    公开(公告)日：2012-11-29

    申请号：US13480800

    申请日：2012-05-25

    申请人： James Copland

    发明人： James Copland

    IPC分类号： G01B11/27

    CPC分类号： G01B11/26 ,  A61B3/152 ,  G01M11/00

    摘要： A method of compensating for misalignment between an optical measurement instrument and a model eye includes: receiving a light beam from the model eye at the optical measurement instrument; producing image data, including light spot data for a plurality of light spots, from the received light beam; determining an observed location of a corneal reflex from the model eye within an image representing the image data; and determining an angle of misalignment between an axis normal to the front surface of the model eye and the optical axis of the optical measurement instrument from the observed location of the corneal reflex within the image.

    摘要翻译： 补偿光学测量仪器和模型眼睛之间的未对准的方法包括：在光学测量仪器处接收来自模型眼睛的光束; 从所接收的光束产生包括多个光点的光斑数据的图像数据; 在表示图像数据的图像内确定来自模型眼睛的角膜反射的观察位置; 以及根据所述图像内的角膜反射的观察位置确定所述模型眼睛的与所述模型眼睛的前表面垂直的轴与所述光学测量仪器的光轴之间的未对准角度。

    Systems and Methods for Measuring Surface Shape
    10.
    发明申请
    Systems and Methods for Measuring Surface Shape 有权
    测量表面形状的系统和方法

    公开(公告)号：US20120113391A1

    公开(公告)日：2012-05-10

    申请号：US13356131

    申请日：2012-01-23

    申请人： Stephen W. Farrer ,  James Copland ,  Thomas D. Raymond ,  Wei Xiong

    发明人： Stephen W. Farrer ,  James Copland ,  Thomas D. Raymond ,  Wei Xiong

    IPC分类号： A61B3/107

    CPC分类号： G01B11/2513 ,  A61B3/107 ,  G01M11/005 ,  G01M11/025 ,  G01M11/0264

    摘要： A system for determining a surface shape of a test object includes a pattern having a plurality of first elements dispose about a central axis and defining an aperture containing the central axis. The first elements includes a plurality of common elements having a common form and a reference element having a reference form that is different than the common form. The system further comprises a detector array and an optical system. The optical system is adapted to provide an image of the first elements when light reflects off a surface of a test object, passes through the aperture, and is received by the detector array. The reference form may be configured to facilitate an association between the common elements and the spot images of the common elements.

    摘要翻译： 用于确定测试对象的表面形状的系统包括具有围绕中心轴布置并且限定包含中心轴线的孔的多个第一元件的图案。 第一元件包括具有共同形式的多个公共元件和具有不同于通用形式的参考形式的参考元件。 该系统还包括检测器阵列和光学系统。 当光从测试对象的表面反射出来时，该光学系统适于提供第一元件的图像，通过该孔并由检测器阵列接收。 参考表格可以被配置为便于公共元素与公共元素的斑点图像之间的关联。