-
公开(公告)号：US07967440B1
公开(公告)日：2011-06-28
申请号：US12693106
申请日：2010-01-25
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。
-
公开(公告)号：US20110149239A1
公开(公告)日：2011-06-23
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。
-
13.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。
-
14.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。
-
公开(公告)号：US20120293769A1
公开(公告)日：2012-11-22
申请号：US13299466
申请日：2011-11-18
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。
-
16.发明申请TREATMENT PLANNING METHOD AND SYSTEM FOR CONTROLLING LASER REFRACTIVE SURGERY 审中-公开用于控制激光折射手术的治疗计划方法和系统公开(公告)号：US20120172854A1
公开(公告)日：2012-07-05
申请号：US13341385
申请日：2011-12-30
申请人： Thomas D. Raymond , Daniel R. Neal
发明人： Thomas D. Raymond , Daniel R. Neal
CPC分类号： A61F9/008 , A61F2009/00857 , A61F2009/00859 , A61F2009/00872 , A61F2009/0088
摘要： Improved devices, systems, and methods for diagnosing, planning treatments of, and/or treating the refractive structures of an eye of a patient incorporate results of prior refractive corrections into a planned refractive treatment of a particular patient by driving an effective treatment vector function based on data from the prior eye treatments. The exemplary effective treatment vector employs an influence matrix which may allow improved refractive corrections to be generated so as to increase the overall accuracy of laser eye surgery (including LASIK, PRK, and the like), customized intraocular lenses (IOLs), refractive femtosecond treatments, and the like.
摘要翻译： 用于诊断，规划治疗和/或治疗患者的眼睛的折射结构的改进的装置，系统和方法将先前的屈光矫正的结果并入特定患者的计划折射治疗中，通过基于有效的治疗向量函数 来自先前的眼睛治疗的数据。 示例性的有效治疗载体使用影响矩阵，其可以允许产生改善的屈光矫正以增加激光眼睛手术（包括LASIK，PRK等），定制的眼内透镜（IOL），折射飞秒处理 ，等等。
-
公开(公告)号：US08126246B2
公开(公告)日：2012-02-28
申请号：US12350895
申请日：2009-01-08
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.
-
18.发明授权公开(公告)号：US07988293B2
公开(公告)日：2011-08-02
申请号：US12607368
申请日：2009-10-28
IPC分类号： A61B3/10
CPC分类号： G01B11/2513 , A61B3/1015 , A61B3/107 , G01M11/0264
摘要： A method of determining a wavefront of a received light beam includes: (a) receiving a light beam; (b) producing a group of light spots from the light beam; (c) qualifying a set of the light spots for use in determining a wavefront of the received light beam; and (d) determining the wavefront of the received light beam using the qualified set of light spots. Qualifying the set of light spots includes, for each light spot: calculating a first calculated location of the light spot using a first calculation algorithm; calculating a second calculated location of the light spot using a second calculation algorithm; and when a difference between the first and second calculated locations for the light spot is greater than an agreement threshold, excluding the light spot from the set of light spots and/or from being employed in determining the wavefront of the received light beam.
摘要翻译： 确定接收光束的波前的方法包括：（a）接收光束; （b）从光束产生一组光斑; （c）限定用于确定所接收的光束的波前的一组光点; 和（d）使用合格的一组光斑确定接收光束的波前。 对于每个光点，对该组光点进行合格包括：使用第一计算算法计算光点的第一计算位置; 使用第二计算算法计算所述光点的第二计算位置; 并且当光点的第一和第二计算位置之间的差值大于协议阈值时，排除来自该组光点的光斑和/或不用于确定接收光束的波前。
-
19.发明授权公开(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。
-
20.发明授权Apparatus and method to enhance X-ray production in laser produced plasmas 失效用于增强激光产生等离子体中的X射线产生的装置和方法
公开(公告)号：US5175757A
公开(公告)日：1992-12-29
申请号：US571253
申请日：1990-08-22
CPC分类号： H05G2/001 , B82Y10/00 , G03F7/70033
摘要： Method and apparatus for generating x-rays for use in, for instance, x-ray photolithography. The method of generating x-rays includes the steps of providing a target and irradiating the target with a laser system which produces a train of sub-pulses to generate an x-ray producing plasma. The sub-pulses are of both high intensity and short duration. The apparatus for generating x-rays from a plasma includes a vacuum chamber, a target supported within the chamber and a laser system, including a short storage time laser.
摘要翻译： 用于生成用于例如x射线光刻的x射线的方法和装置。 产生X射线的方法包括以下步骤：提供目标并用产生一系列子脉冲以产生产生X射线的等离子体的激光系统照射目标物。 子脉冲具有高强度和短持续时间。 用于从等离子体产生X射线的装置包括真空室，支撑在腔室内的靶和包括短存储时间激光器的激光系统。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.027 秒)
