公开(公告)号：EP2828614B1

公开(公告)日：2018-09-05

申请号：EP13764790.5

申请日：2013-03-14

申请人： Ramot at Tel-Aviv University Ltd.

发明人： SHAKED, Natan Tzvi ,  GIRSHOVITZ, Pinhas

IPC分类号： G01B9/02 ,  G01B9/04 ,  G02B21/00

CPC分类号： G02B21/0056 ,  G01B9/02024 ,  G01B9/02032 ,  G01B9/02042 ,  G01B9/02049 ,  G01B9/02054 ,  G01B9/02057 ,  G01B9/02075 ,  G01B9/02097 ,  G01B9/04 ,  G01B11/06 ,  G01B2290/50 ,  G02B21/0008 ,  G02B21/0016 ,  G02B21/008 ,  G02B21/0088

摘要： The present invention provides a novel simple, portable, compact and inexpensive approach for interferometric optical thickness measurements that can be easily incorporated into an existing microscope (or other imaging systems) with existing cameras. According to the invention, the interferometric device provides a substantially stable, easy to align common path interferometric geometry, while eliminating a need for controllably changing the optical path of the beam. To this end, the inexpensive and easy to align interferometric device of the invention is configured such that it applies the principles of the interferometric measurements to a sample beam only, being a single input into the interferometric device.

公开(公告)号：EP3063368A4

公开(公告)日：2017-12-13

申请号：EP14858104

申请日：2014-10-27

申请人： BAKER HUGHES INC

发明人： EDWARDS CARL M

IPC分类号： E21B47/002 ,  E21B47/01 ,  E21B49/00 ,  G01B9/02 ,  G01D5/26 ,  G01D5/34 ,  G01N21/01 ,  G01V11/00

CPC分类号： G01B9/02067 ,  E21B47/011 ,  E21B49/00 ,  G01B9/02052 ,  G01B9/02075 ,  G01B2290/25 ,  G01D5/266 ,  G01D5/34 ,  G01V11/00

摘要： Methods, systems and devices for estimating a parameter of interest in a borehole. The method may include generating information from an optical displacement device relating to relative motion between two or more reflective surfaces thereof that is indicative of the parameter of interest; and preventing changes in the information resulting from changes at the optical displacement device in at least one of i) temperature, or ii) pressure, by compensating for the changes. Compensating may include adjusting at least one light source generating an electromagnetic beam at least partly received by the optical displacement device responsive to information relating to a control optical displacement device at the optical displacement device. Compensating may include using an optical displacement device and configuring the optical displacement device such that a difference between a first variable gap and a second variable gap is substantially zero while the apparatus is subject to nominal conditions.

公开(公告)号：EP2828614A1

公开(公告)日：2015-01-28

申请号：EP13764790.5

申请日：2013-03-14

申请人： Ramot at Tel-Aviv University Ltd.

发明人： SHAKED, Natan Tzvi ,  GIRSHOVITZ, Pinhas

IPC分类号： G01B9/02

CPC分类号： G02B21/0056 ,  G01B9/02024 ,  G01B9/02032 ,  G01B9/02042 ,  G01B9/02049 ,  G01B9/02054 ,  G01B9/02057 ,  G01B9/02075 ,  G01B9/02097 ,  G01B9/04 ,  G01B11/06 ,  G01B2290/50 ,  G02B21/0008 ,  G02B21/0016 ,  G02B21/008 ,  G02B21/0088

摘要： The present invention provides a novel simple, portable, compact and inexpensive approach for interferometric optical thickness measurements that can be easily incorporated into an existing microscope (or other imaging systems) with existing cameras. According to the invention, the interferometric device provides a substantially stable, easy to align common path interferometric geometry, while eliminating a need for controllably changing the optical path of the beam. To this end, the inexpensive and easy to align interferometric device of the invention is configured such that it applies the principles of the interferometric measurements to a sample beam only, being a single input into the interferometric device.

摘要翻译： 本发明提供了一种用于干涉光学厚度测量的新型简单，便携，紧凑和便宜的方法，其可以容易地并入现有的相机的现有显微镜（或其他成像系统）中。 根据本发明，干涉测量装置提供基本上稳定的，易于对准的公共路径干涉几何，同时消除对可控地改变光束的光路的需要。 为此，本发明的便宜且易于对准的干涉测量装置被配置为使得其仅将干涉测量的原理应用于仅用于干涉测量装置的单个输入的采样光束。

公开(公告)号：EP3085302A1

公开(公告)日：2016-10-26

申请号：EP16166675.5

申请日：2016-04-22

申请人： Tomey Corporation

发明人： YAMANARI, Masahiro

IPC分类号： A61B3/10 ,  A61B5/00 ,  G01B9/02 ,  G01N21/47

CPC分类号： G01B9/02083 ,  A61B3/0025 ,  A61B3/102 ,  A61B5/0066 ,  G01B9/02004 ,  G01B9/02027 ,  G01B9/02075 ,  G01B9/02091 ,  G01B2290/35 ,  G01B2290/70

摘要： The optical coherence tomography includes a processor, wherein the processor is configured to: vectorize the Jones matrix and then convert the vectorized Jones matrix into an expanded matrix; calculate at least an eigenvalue and at least an eigenvector of the expanded matrix by performing an eigenvalue decomposition to the expanded matrix; and estimate the polarization characteristic of the subject by using at least an eigenvalue and at least an eigenvector of the Jones matrix acquired based on the at least eigenvalue and the at least eigenvector of the expanded matrix.

摘要翻译： 光学相干断层扫描包括处理器，其中处理器被配置为：对琼斯矩阵进行矢量化，然后将矢量化琼斯矩阵转换为扩展矩阵; 通过对扩展矩阵执行特征值分解来计算扩展矩阵的至少特征值和至少特征向量; 并且通过使用至少基于扩展矩阵的至少特征值和至少特征向量获取的琼斯矩阵的特征值和至少特征向量来估计对象的极化特性。

公开(公告)号：EP2293031A2

公开(公告)日：2011-03-09

申请号：EP10182394.6

申请日：2004-09-08

申请人： The General Hospital Corporation

发明人： Yun, Seok Hyun, Ph. D. ,  Bouma, Brett Eugene, Ph. D. ,  Tearney, Guillermo J., MD, Ph. D. ,  Boer, Johannes Fitzgerald de, Ph. D

IPC分类号： G01J3/18 ,  H01S3/10 ,  G01J3/02 ,  G01J3/10 ,  G01N21/47 ,  A61B5/00 ,  G02B27/48 ,  G01B9/02

CPC分类号： H01S5/5045 ,  A61B5/0059 ,  A61B5/0066 ,  A61B5/7257 ,  G01B9/02002 ,  G01B9/02004 ,  G01B9/02043 ,  G01B9/02075 ,  G01B9/02081 ,  G01B9/02083 ,  G01B9/02084 ,  G01B9/0209 ,  G01B9/02091 ,  G01B2290/45 ,  G01B2290/70 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0264 ,  G01J3/453 ,  G01J9/0215 ,  G01N21/4795 ,  G02B6/3604 ,  G02B26/12 ,  G02B27/48 ,  G02F1/093 ,  G02F1/11 ,  H01S3/0071 ,  H01S3/0078 ,  H01S3/08009 ,  H01S3/08063 ,  H01S3/105 ,  H01S3/1068 ,  H01S5/0071 ,  H01S5/0078 ,  H01S5/1025 ,  H01S5/14 ,  H01S5/141 ,  H01S5/146

摘要： An apparatus and method are provided. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a non-reflective reference. A frequency of the first and/or second radiations varies over time. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond.

摘要翻译： 本发明提供一种装置和方法。 特别地，至少一个第一电磁辐射可被提供给一个样品和至少一个第二电磁辐射可被提供给一个无反射参考。 第一和/或第二辐射的频率变化超时。 与第一辐射相关联的至少一个第三辐射和与所述第二辐射相关联的至少一个第四辐射之间检测到干扰。 可选地，第一电磁辐射和/或第二电磁辐射具有光谱随着时间的过去而改变。 的光谱可以在特定时间包含多个频率上。 此外，它能够检测在第一偏振状态下的第三和第四放射线辐射之间的干扰信号。 此外，可能优选的是检测在第二偏振状态的所有其是从所述第一偏振状态不同的第三和第四辐射之间的另一个干扰信号。 第一和/或第二电磁辐射可以具有频谱谁的平均频率以调谐速度实质上连续变化随时间所做的是每毫秒大于100泰拉·赫茨。

公开(公告)号：EP2270447A1

公开(公告)日：2011-01-05

申请号：EP10182424.1

申请日：2004-09-08

申请人： The General Hospital Corporation

发明人： Yun, Seok Hyun, Ph. D. ,  Bouma, Brett Eugene, Ph. D. ,  Tearney, Guillermo J., MD, Ph. D. ,  Boer, Johannes Fitzgerald de, Ph. D.

IPC分类号： G01J3/02 ,  G01J3/453 ,  A61B5/00 ,  G02B27/48 ,  G01B9/02

CPC分类号： H01S5/5045 ,  A61B5/0059 ,  A61B5/0066 ,  A61B5/7257 ,  G01B9/02002 ,  G01B9/02004 ,  G01B9/02043 ,  G01B9/02075 ,  G01B9/02081 ,  G01B9/02083 ,  G01B9/02084 ,  G01B9/0209 ,  G01B9/02091 ,  G01B2290/45 ,  G01B2290/70 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0264 ,  G01J3/453 ,  G01J9/0215 ,  G01N21/4795 ,  G02B6/3604 ,  G02B26/12 ,  G02B27/48 ,  G02F1/093 ,  G02F1/11 ,  H01S3/0071 ,  H01S3/0078 ,  H01S3/08009 ,  H01S3/08063 ,  H01S3/105 ,  H01S3/1068 ,  H01S5/0071 ,  H01S5/0078 ,  H01S5/1025 ,  H01S5/14 ,  H01S5/141 ,  H01S5/146

摘要： An apparatus is provided for performing optical imaging using frequency-domain interferometry. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a reference. A frequency of the first and/or second radiations varies over time. Means are provided which are configured to shift the frequency of at least one of the at least first and second radiation to at least partially reduce, differentiate or eliminate negative frequency components. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond.

摘要翻译： 提供了一种装置，用于执行使用频域干涉光学成像。 特别地，至少一个第一电磁辐射可被提供给一个样品和至少一个第二电磁辐射可被提供给一个基准。 第一和/或第二辐射的频率变化超时。 设置装置被配置为移动所述至少第一和第二辐射中的至少一个的频率，以至少部分减少，分化或消除负频率分量。 与第一辐射相关联的至少一个第三辐射和与所述第二辐射相关联的至少一个第四辐射之间检测到干扰。 可选地，第一电磁辐射和/或第二电磁辐射具有光谱随着时间的过去而改变。 的光谱可以在特定时间包含多个频率上。 此外，它能够检测在第一偏振状态下的第三和第四放射线辐射之间的干扰信号。 此外，可能优选的是检测在第二偏振状态的所有其是从所述第一偏振状态不同的第三和第四辐射之间的另一个干扰信号。 第一和/或第二电磁辐射可以具有频谱谁的平均频率以调谐速度实质上连续变化随时间所做的是每毫秒大于100泰拉·赫茨。

公开(公告)号：EP1082582A1

公开(公告)日：2001-03-14

申请号：EP99935308.9

申请日：1999-06-04

申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY

发明人： SHIRLEY, Lyle

IPC分类号： G01B11/00 ,  G01B9/02

CPC分类号： G01B9/02024 ,  G01B9/02007 ,  G01B9/02075 ,  G01B11/24 ,  G01B2290/70

摘要： An apparatus and method for compensating for measurement uncertainty due to atmospheric effects. In one embodiment the apparatus includes two sources separated by a predetermined distance and two target locations separated by a predetermined distance. The radiation at the target locations is combined to form an interference pattern onto a detector which generates a signal corresponding to the measurement having a substantially reduced error due to atmospheric effects such as temperature variations. In another embodiment the radiation from the sources crosses somewhere in the measurement environment as it propagates toward the target locations. In yet another embodiment the separation between the two sources is substantially the same as the separation between the two target locations.

公开(公告)号：EP2899494B1

公开(公告)日：2018-09-12

申请号：EP14169770.6

申请日：2014-05-26

申请人： Kabushiki Kaisha Topcon

发明人： Yuan, Zhijia ,  Wang, Zhenguo ,  Reisman, Charles A. ,  Chan, Kinpui

IPC分类号： G01B9/02

CPC分类号： G01B9/02075 ,  G01B9/02004 ,  G01B9/02069 ,  G01B9/0207 ,  G01B9/02091

摘要： Optical coherence tomography light sources can be non-linear and attempts to linearize them can lead to asynchrony between the light source and A-line scans and missampling in the scans causing signal noise. Accordingly, a system and methods are provided herein to detect missampling by obtaining a plurality of interferograms; providing at least two wavenumber reference signals at different wavenumbers, wherein the wavenumber reference signals comprise attenuated or enhanced portions of each of the plurality of interferograms; aligning each of the plurality of interferograms according to one of the at least two wavenumber reference signals; and for each of the plurality of interferograms, identifying an interferogram as missampled if another of the at least two reference signals does not align with a corresponding reference signal in a statistically significant number of the plurality of interferograms. An optical element, for example, an optical notch, may be used to generate the reference signals.

公开(公告)号：EP2278287B1

公开(公告)日：2016-09-07

申请号：EP10182341.7

申请日：2004-09-08

申请人： The General Hospital Corporation

发明人： Yun, Seok Hyun ,  Bouma, Brett Eugene ,  Tearney, Guillermo J. ,  Boer, Johannes, Fitzgerald de

IPC分类号： G01J3/18 ,  H01S3/10 ,  G01B9/02

CPC分类号： H01S5/5045 ,  A61B5/0059 ,  A61B5/0066 ,  A61B5/7257 ,  G01B9/02002 ,  G01B9/02004 ,  G01B9/02043 ,  G01B9/02075 ,  G01B9/02081 ,  G01B9/02083 ,  G01B9/02084 ,  G01B9/0209 ,  G01B9/02091 ,  G01B2290/45 ,  G01B2290/70 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0264 ,  G01J3/453 ,  G01J9/0215 ,  G01N21/4795 ,  G02B6/3604 ,  G02B26/12 ,  G02B27/48 ,  G02F1/093 ,  G02F1/11 ,  H01S3/0071 ,  H01S3/0078 ,  H01S3/08009 ,  H01S3/08063 ,  H01S3/105 ,  H01S3/1068 ,  H01S5/0071 ,  H01S5/0078 ,  H01S5/1025 ,  H01S5/14 ,  H01S5/141 ,  H01S5/146

摘要： An apparatus and method are provided. In particular, at least one first electro-magnetic radiation may be provided to a sample and at least one second electro-magnetic radiation can be provided to a non-reflective reference. A frequency of the first and/or second radiations varies over time. An interference is detected between at least one third radiation associated with the first radiation and at least one fourth radiation associated with the second radiation. Alternatively, the first electro-magnetic radiation and/or second electro-magnetic radiation have a spectrum which changes over time. The spectrum may contain multiple frequencies at a particular time. In addition, it is possible to detect the interference signal between the third radiation and the fourth radiation in a first polarization state. Further, it may be preferable to detect a further interference signal between the third and fourth radiations in a second polarization state which is different from the first polarization state. The first and/or second electro-magnetic radiations may have a spectrum whose mean frequency changes substantially continuously over time at a tuning speed that is greater than 100 Tera Hertz per millisecond.

公开(公告)号：EP2899494A1

公开(公告)日：2015-07-29

申请号：EP14169770.6

申请日：2014-05-26

申请人： Kabushiki Kaisha Topcon

发明人： Yuan, Zhijia ,  Wang, Zhenguo ,  Reisman, Charles A. ,  Chan, Kinpui

IPC分类号： G01B9/02

CPC分类号： G01B9/02075 ,  G01B9/02004 ,  G01B9/02069 ,  G01B9/0207 ,  G01B9/02091

摘要： Optical coherence tomography light sources can be non-linear and attempts to linearize them can lead to asynchrony between the light source and A-line scans and missampling in the scans causing signal noise. Accordingly, a system and methods are provided herein to detect missampling by obtaining a plurality of interferograms; providing at least two wavenumber reference signals at different wavenumbers, wherein the wavenumber reference signals comprise attenuated or enhanced portions of each of the plurality of interferograms; aligning each of the plurality of interferograms according to one of the at least two wavenumber reference signals; and for each of the plurality of interferograms, identifying an interferogram as missampled if another of the at least two reference signals does not align with a corresponding reference signal in a statistically significant number of the plurality of interferograms. An optical element, for example, an optical notch, may be used to generate the reference signals.

摘要翻译： 光学相干断层扫描光源可以是非线性的，并且尝试线性它们可以导致光源和A线扫描，并在扫描引起信号噪声missampling之间的异步。 因此，提供了一个系统和方法，在通过获得干涉的多元化检测missampling; 在不同的波数提供至少两个波数参考信号，worin波数参考信号包括衰减或增强的每个干涉图的多个的部分; 对准各个干涉gemäß的多个到所述至少两个波数参考信号中的一个; 并且对于每个干涉图的多个，在干涉​​识别为missampled如果另一个所述至少两个参考信号的不与干涉图的多个有统计学显著数目的参考信号CORRESPONDING对齐。 一种光学元件，例如，光学豁口，可用于生成所述基准信号。