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1.发明授权System and method for metrology of surface flatness and surface nanotopology of materials 有权材料表面平整度和表面纳米拓扑学计量的系统和方法公开(公告)号：US06624896B1
公开(公告)日：2003-09-23
申请号：US09690766
申请日：2000-10-18
IPC分类号： G01B1130
CPC分类号： G01B11/306 , G01B11/303
摘要： A metrology system and method uses pulsed light to allow continuous movement of a target relative to the sensor. A metrology system and method uses dynamic adjustment of tilt in a system. A metrology system and method calibrates the system to remove inherent optical aberrations in the system. Filtering may also be used in the system to increase accuracy.
摘要翻译： 计量系统和方法使用脉冲光来允许目标相对于传感器的连续移动。 计量系统和方法使用系统中的倾斜动态调整。 计量系统和方法校准系统以去除系统中的固有光学像差。 系统中也可以使用过滤来提高精度。
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2.发明授权Methods of measuring moving objects and reducing exposure during wavefront measurements 有权在波前测量中测量移动物体和减少曝光的方法公开(公告)号：US06547395B1
公开(公告)日：2003-04-15
申请号：US09507670
申请日：2000-02-22
IPC分类号： A61B300
CPC分类号： G02B3/0056 , C07D471/04 , G01J9/00 , G01J11/00 , G02B26/06
摘要： Metrology is performed using short, temporally resolved measurements in order to “freeze” the deformation of the object at a particular instant in time. The pulsed light beams are used to conduct metrology of moving objects and objects which are moved relative to the detector for measurement thereof. The motion may be translational, spiral and/or rotational. The duty cycle of the light source may be varied to in accordance with the control of the operation of the detector to perform metrology using a reduced total exposure of an object, while increasing the amount of light available for the measurement.
摘要翻译： 使用短时间分辨的测量来进行计量，以便在特定时刻“冻结”物体的变形。 脉冲光束用于对相对于检测器移动的移动物体和物体进行计量，以进行测量。 运动可以是平移的，螺旋的和/或旋转的。 可以根据检测器的操作的控制来改变光源的占空比，以便在增加可用于测量的光量的同时，使用减少的对象的总曝光来执行度量。
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3.发明授权Method and system for sensing and analyzing a wavefront of an optically transmissive system 有权用于感测和分析光学透射系统的波前的方法和系统公开(公告)号：US06819413B2
公开(公告)日：2004-11-16
申请号：US10650666
申请日：2003-08-29
IPC分类号： G01J100
CPC分类号： G01M11/0257 , G01J9/00 , G02B7/28 , G02B27/30 , G02B27/50
摘要： An enhanced dynamic range wavefront sensing system includes a light source disposed on a first side of an optically transmissive device, a wavefront sensor disposed on a second side of an optically transmissive device, a relay imaging system disposed between the optically transmissive device and the wavefront sensor, and means for adjusting a distance between the light source and the optically transmissive device. Beneficially, the relay imaging system includes a range-limiting aperture to insure that the wavefront sensor never goes out of range so that a feedback system can be employed to move the light source one focal length away from the optically transmissive device.
摘要翻译： 增强型动态范围波前感测系统包括设置在光学透射装置的第一侧上的光源，设置在光学透射装置的第二侧上的波前传感器，设置在光学透射装置和波前传感器之间的中继成像系统 以及用于调节光源和光学透射装置之间的距离的装置。 有利的是，继电器成像系统包括范围限定孔径，以确保波前传感器永远不会超出范围，使得可以采用反馈系统将光源的一个焦距移动远离光学透射装置。
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公开(公告)号：US09504376B2
公开(公告)日：2016-11-29
申请号：US12909756
申请日：2010-10-21
CPC分类号： A61B3/0025 , A61B3/1015 , A61B3/103 , A61B3/112 , G02C7/027 , G02C7/04
摘要： Devices, systems, and methods that facilitate optical analysis, particularly for the diagnosis and treatment of refractive errors of the eye. An optical diagnostic method for an eye includes obtaining a sequence of aberration measurements of the eye, identifying an outlier aberration measurement of the sequence of aberration measurements, and excluding the outlier aberration measurement from the sequence of aberration measurements to produce a qualified sequence of aberration measurements. The sequence of aberrations measurements can be obtained by using a wavefront sensor. An optical correction for the eye can be formulated in response to the qualified sequence of aberration measurements.
摘要翻译： 便于光学分析的设备，系统和方法，特别是诊断和治疗眼睛屈光不正的方法。 用于眼睛的光学诊断方法包括获得眼睛的像差测量序列，识别像差测量序列的异常像差测量，并从像差测量序列排除异常值像差测量，以产生合格的像差测量序列 。 可以通过使用波前传感器来获得像差测量序列。 可以根据合格的像差测量序列来制定眼睛的光学校正。
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公开(公告)号：US08118429B2
公开(公告)日：2012-02-21
申请号：US12259381
申请日：2008-10-28
申请人： Thomas D. Raymond , Paul Pulaski , Stephen W. Farrer , Daniel R. Neal , Alan H. Greenaway , David M. Faichnie , Heather I. Campbell Dalgarno , Graham N. Craik
发明人： Thomas D. Raymond , Paul Pulaski , Stephen W. Farrer , Daniel R. Neal , Alan H. Greenaway , David M. Faichnie , Heather I. Campbell Dalgarno , Graham N. Craik
CPC分类号： G01M11/0292 , A61B3/1015 , G01J9/00
摘要： A phase diversity wavefront sensor includes an optical system including at least one optical element for receiving a light beam; a diffractive optical element having a diffractive pattern defining a filter function, the diffractive optical element being arranged to produce, in conjunction with the optical system, images from the light beam associated with at least two diffraction orders; and a detector for detecting the images and outputting image data corresponding to the detected images. In one embodiment, the optical system, diffractive optical element, and detector are arranged to provide telecentric, pupil plane images of the light beam. A processor receives the image data from the detector, and executes a Gerchberg-Saxton phase retrieval algorithm to measure the wavefront of the light beam.
摘要翻译： 相位分集波前传感器包括光学系统，该光学系统包括用于接收光束的至少一个光学元件; 具有限定滤光器功能的衍射图案的衍射光学元件，所述衍射光学元件布置成与所述光学系统结合产生与至少两个衍射级相关联的光束的图像; 以及用于检测图像并输出与检测到的图像相对应的图像数据的检测器。 在一个实施例中，光学系统，衍射光学元件和检测器被布置成提供光束的远心光瞳平面图像。 处理器从检测器接收图像数据，并且执行Gerchberg-Saxton相位检索算法来测量光束的波前。
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公开(公告)号：US20090002631A1
公开(公告)日：2009-01-01
申请号：US11769054
申请日：2007-06-27
摘要： A system measures a corneal topography of an eye. The system includes a group of first light sources arranged around a central axis, the group being separated from the axis by a radial distance defining an aperture in the group; a plurality of second light sources; a detector array; and an optical system adapted to provide light from the second light sources through the aperture to a cornea of an eye, and to provide images of the first light sources and images of the second light sources from the cornea, through the aperture, to the detector array. The optical system includes an optical element having a focal length, f. The second light sources are disposed to be in an optical path approximately one focal length, f, away from the optical element.
摘要翻译： 系统测量眼睛的角膜地形。 该系统包括围绕中心轴布置的一组第一光源，该组与该轴线分开限定该组中的孔的径向距离; 多个第二光源; 检测器阵列; 以及光学系统，其适于将来自所述第二光源的光通过所述孔提供给眼睛的角膜，并且提供所述第一光源和所述第二光源的图像从所述角膜通过所述孔到所述检测器的图像 数组。 光学系统包括具有焦距f的光学元件。 第二光源设置成离光学元件大约一个焦距f的光路。
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7.发明授权Method of locating valid light spots for optical measurement and optical measurement instrument employing method of locating valid light spots 有权使用定位有效光斑的方法来定位光学测量的有效光斑和光学测量仪器的方法公开(公告)号：US08622546B2
公开(公告)日：2014-01-07
申请号：US13156013
申请日：2011-06-08
申请人： Stephen W. Farrer , Thomas D. Raymond , Wei Xiong , John Dixson , Daniel R. Neal
发明人： Stephen W. Farrer , Thomas D. Raymond , Wei Xiong , John Dixson , Daniel R. Neal
CPC分类号： G01J1/4228 , A61B3/1015
摘要： An algorithm locates valid light spots produced on an image detector by a wavefront of interest. The algorithm includes sequentially examining pixels of the image detector to determine for each of the pixels whether the light intensity detected by the pixel is greater than a threshold, When the pixel's detected light intensity is determined to be greater than the threshold, the algorithm includes: determining whether the pixel belongs to a valid light spot; and when the pixel is determined to belong to a valid light spot; saving data indicating a location for the valid light spot; and masking out a group of pixels of the image detector at the determined location such that the masked pixels are considered to have a light intensity less than the threshold for a remainder of the sequential examination.
摘要翻译： 算法通过感兴趣的波阵面定位在图像检测器上产生的有效光点。 该算法包括顺序地检查图像检测器的像素，以确定每个像素是否由像素检测的光强度是否大于阈值。当像素的检测光强被确定为大于阈值时，该算法包括： 确定像素是否属于有效光点; 并且当确定像素属于有效光点时; 保存指示有效光点位置的数据; 并且在所确定的位置处掩蔽图像检测器的一组像素，使得被掩盖的像素被认为具有小于连续检验的剩余部分的阈值的光强度。
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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。
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9.发明申请METHOD OF LOCATING VALID LIGHT SPOTS FOR OPTICAL MEASUREMENT AND OPTICAL MEASUREMENT INSTRUMENT EMPLOYING METHOD OF LOCATING VALID LIGHT SPOTS 有权定位有效光源用于光学测量和光学测量仪器的方法使用定位有效光源的方法公开(公告)号：US20120314187A1
公开(公告)日：2012-12-13
申请号：US13156013
申请日：2011-06-08
申请人： Stephan W. Farrer , Thomas D. Raymond , Wei Xiong , John Dixson , Daniel R. Neal
发明人： Stephan W. Farrer , Thomas D. Raymond , Wei Xiong , John Dixson , Daniel R. Neal
CPC分类号： G01J1/4228 , A61B3/1015
摘要： An algorithm locates valid light spots produced on an image detector by a wavefront of interest. The algorithm includes sequentially examining pixels of the image detector to determine for each of the pixels whether the light intensity detected by the pixel is greater than a threshold, When the pixel's detected light intensity is determined to be greater than the threshold, the algorithm includes: determining whether the pixel belongs to a valid light spot; and when the pixel is determined to belong to a valid light spot; saving data indicating a location for the valid light spot; and masking out a group of pixels of the image detector at the determined location such that the masked pixels are considered to have a light intensity less than the threshold for a remainder of the sequential examination.
摘要翻译： 算法通过感兴趣的波阵面定位在图像检测器上产生的有效光点。 该算法包括顺序地检查图像检测器的像素，以确定每个像素是否由像素检测的光强度是否大于阈值。当像素的检测光强被确定为大于阈值时，该算法包括： 确定像素是否属于有效光点; 并且当确定像素属于有效光点时; 保存指示有效光点位置的数据; 并且在所确定的位置处掩蔽图像检测器的一组像素，使得被掩盖的像素被认为具有小于连续检验的剩余部分的阈值的光强度。
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公开(公告)号：US07976163B2
公开(公告)日：2011-07-12
申请号：US11769054
申请日：2007-06-27
申请人： Charles E. Campbell , Stephen W. Farrer , Daniel R. Neal , William S. Powers , Thomas D. Raymond
发明人： Charles E. Campbell , Stephen W. Farrer , Daniel R. Neal , William S. Powers , Thomas D. Raymond
IPC分类号： A61B3/107
摘要： A system measures a corneal topography of an eye. The system includes a group of first light sources arranged around a central axis, the group being separated from the axis by a radial distance defining an aperture in the group; a plurality of second light sources; a detector array; and an optical system adapted to provide light from the second light sources through the aperture to a cornea of an eye, and to provide images of the first light sources and images of the second light sources from the cornea, through the aperture, to the detector array. The optical system includes an optical element having a focal length, f. The second light sources are disposed to be in an optical path approximately one focal length, f, away from the optical element.
摘要翻译： 系统测量眼睛的角膜地形。 该系统包括围绕中心轴布置的一组第一光源，该组与该轴线分开限定该组中的孔的径向距离; 多个第二光源; 检测器阵列; 以及光学系统，其适于将来自所述第二光源的光通过所述孔提供给眼睛的角膜，并且提供所述第一光源和所述第二光源的图像从所述角膜通过所述孔到所述检测器的图像 数组。 光学系统包括具有焦距f的光学元件。 第二光源设置成离光学元件大约一个焦距f的光路。
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