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1. 发明授权

EP2899494B1 Detection of missampled interferograms in frequency domain OCT with a k-clock 有权
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.

2. 发明公开

EP2899494A1 Detection of missampled interferograms in frequency domain OCT with a k-clock 有权
标题翻译：在具有波数时钟的光频率范围相干断层扫描不正确取样干涉的检测
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。

3. 发明公开

EP2754389A1 Apparatuses and methods for optical coherence tomography and for setting characteristics of the used light source 有权
标题翻译：光学成像装置，光学成像，用于调节光源和方法的性质，用于调节光源的特性装置
公开(公告)号：EP2754389A1
公开(公告)日：2014-07-16
申请号：EP13004220.3
申请日：2013-08-27
申请人： Kabushiki Kaisha TOPCON
发明人： Wang, Zhenguo , Yuan, Zhijia , Chan, Kinpui
IPC分类号： A61B5/00 , A61B3/10 , G01B9/02
CPC分类号： G01B9/02001 , A61B3/102 , A61B5/0066 , G01B9/02091 , G01N21/4795
摘要： An embodiment provides a method for setting the characteristics of the light to be output from a light source unit for optical coherence tomography, using a computer. This method is performed by using relation information in which a representative wavelength, a wavelength range including said representative wavelength, and the light loss amount due to absorption by a medium are related to each other. This method includes the following steps: setting each value of a first parameter and a second parameter among the representative wavelength, the wavelength range, and the light loss amount; acquiring a value of a third parameter among the representative wavelength, the wavelength range, and the light loss amount other than said first parameter and said second parameter based on the set two values and said relation information; and outputting a value of said acquired third parameter.
摘要翻译：一个实施方案提供用于设置光的特性是从对光学相干断层扫描的光源单元输出，使用计算机的方法。该方法执行通过利用关系信息，其中一个代表波长，波长范围包含所述代表波长，并且光损耗量由于通过的介质的吸收相关的海誓山盟。该方法包括以下步骤：设置第一参数的每一个值和代表波长，波长范围，并且光损耗量之间的第二参数; 获取的第三参数的值代表波长，波长范围，和比所述第一参数之外的光损失量中，并且所述基于所设置的两个值和所述关系信息的第二个参数; 和输出挺表示的值获得的第三个参数。

4. 发明授权

EP1582143B1 Optical inteferometer for imaging at several depth regions of an object 有权
标题翻译：光干涉仪，用于从对象的不同深度的图像采集
公开(公告)号：EP1582143B1
公开(公告)日：2012-09-19
申请号：EP05006897.2
申请日：2005-03-30
申请人： Kabushiki Kaisha TOPCON
发明人： Chan, Kinpui , Akiba, Masahiro , Fukuma, Yasufumi K.K. Topcon , Otsuka, Hiroyuki K.K. Topcon , Tsukada, Hisashi K.K. Topcon
IPC分类号： A61B3/12 , A61B5/00 , G01N21/47 , G01B9/02
CPC分类号： A61B3/1225 , A61B3/102 , A61B5/0066 , A61B5/0073 , G01B9/02003 , G01B9/02007 , G01B9/02012 , G01B9/02028 , G01B9/02091 , G01B2290/45

5. 发明公开

EP1630520A3 Apparatus and method of heterodyne interferometry for imaging 有权
标题翻译：装置和方法，用于图像形成的由外差干涉的手段
公开(公告)号：EP1630520A3
公开(公告)日：2012-01-25
申请号：EP05016780.8
申请日：2005-08-02
申请人： Kabushiki Kaisha TOPCON
发明人： Chan, Kinpui , Akiba, Masahiro
IPC分类号： G01B11/24 , G01B9/02
CPC分类号： G01B9/02014 , G01B9/02003 , G01B9/02027 , G01B9/02069 , G01B9/02091 , G01B11/2441 , G01B2290/45 , G01B2290/70
摘要： The present invention relates to an optical image measuring apparatus for measuring the surface form or inner form of the object to be measured by using an optical heterodyne detection method to produce the image of the measured form. Provided is an optical image measuring apparatus capable of effectively obtaining a signal intensity of interference light and phase information thereof by improving detection sensitivity. The optical image measuring apparatus includes a broad-band light source for outputting a light beamwhose intensity is periodicallymodulated, a polarizingplate for converting the light beam to linearlypolarized light, a half mirror for dividing the light beam into signal light and reference light and superimposing the signal light and the reference light on each other to produce interference light, a wavelength plate for converting the reference light to circularly polarized light, a frequency shifter for shifting a frequency of the reference light, a reference mirror which is moved by a piezoelectric element, a polarization beam splitter for extracting an S-polarized light component and a P-polarized light component from the interference light, CCDs for detecting the respective polarized light components and outputting detection signals, and a signal processing portion for calculating a signal intensity of the interference light and a phase thereof based on the detection signals. An image of an object to be measured is formed based on a result obtained by calculation.

6. 发明公开

EP2757345A1 Image measuring method and image measuring apparatus 有权
标题翻译： Bildmessverfahren und Bildmessvorrichtung
公开(公告)号：EP2757345A1
公开(公告)日：2014-07-23
申请号：EP13004839.0
申请日：2013-10-08
申请人： Kabushiki Kaisha Topcon
发明人： Wang, Zhenguo , Yuan, Zhijia , Chan, Kinpui
IPC分类号： G01B9/02
摘要： An image measuring method according to an embodiment comprises a clock generating step, a noise reducing step, a data acquisition step, a digital data generating step and an image data generating step. In the clock generating step, clock signals are generated. In the noise reducing step, the noise of the generated clock signals is reduced to a predetermined threshold or lower. In the data acquisition step, analog data indicating the inner morphology of an object is acquired. In the digital data generating step, digital data is generated by sampling the analog data based on the clock signals with reduced noise. In the image data generating step, image data of the object is generated by performing data processing including Fourier transform on the generated digital data.
摘要翻译：根据实施例的图像测量方法包括时钟产生步骤，降噪步骤，数据获取步骤，数字数据产生步骤和图像数据生成步骤。在时钟产生步骤中，产生时钟信号。在降噪步骤中，所生成的时钟信号的噪声降低到预定阈值以下。在数据采集步骤中，获取表示物体的内部形态的模拟数据。在数字数据产生步骤中，通过基于具有降低的噪声的时钟信号对模拟数据进行采样而产生数字数据。在图像数据生成步骤中，通过对生成的数字数据进行包括傅里叶变换的数据处理来生成对象的图像数据。

7. 发明公开

EP1643236A3 Optical image measuring apparatus 有权
标题翻译：光学图像测量装置
公开(公告)号：EP1643236A3
公开(公告)日：2007-10-10
申请号：EP05020937.8
申请日：2005-09-26
申请人： Kabushiki Kaisha TOPCON
发明人： Chan, Kinpui , Akiba, Masahiro
IPC分类号： G01N21/21 , G01N21/47 , G01N21/31 , A61B5/00 , G01B9/02
CPC分类号： A61B5/14546 , A61B5/0066 , A61B5/14551 , G01B9/02002 , G01B9/02007 , G01B9/02012 , G01B9/02069 , G01B9/02081 , G01B9/02091 , G01B2290/45 , G01B2290/70 , G01N21/21 , G01N21/3151 , G01N21/3563 , G01N21/359 , G01N21/4795 , G01N2021/1772 , G01N2021/1787 , G01N2201/0691
摘要： An optical image measuring apparatus forming an image expressing functional information on a living tissue. The optical image measuring apparatus includes a light emitting portion (2) outputting light (B1 and B2(B)) having different wavelengths intensity-modulating the light periodically, a polarizing plate (3) converting a light (B) to linearly polarized light, a half mirror (6) dividing the light (B) into signal light (S) and reference light (R), a wavelength plate (7) converting a polarization characteristic of the reference light (R), a frequency shifter (8) shifting a frequency of the reference light (R), the half mirror (6) superimposing the signal light (S) and the reference light (R) on each other to produce interference light (L), a polarization beam splitter (11) extracting a polarized light from the interference light (L), CCDs (21 and 22) detecting the extracted polarized interference light (L), and a signal processing portion (20) forming an image of an object to be measured (O) based on the polarized interference light (L) related to each of the light (B1 and B2), detected by the CCDs (21 and 22).
摘要翻译：一种光学图像测量装置，形成表示活体组织的功能信息的图像。该光学图像测量设备包括：发光部分（2），用于输出具有周期性强度调制光的不同波长的光（B1和B2（B））;偏振片（3），用于将光（B）转换为线偏振光; 将光（B）分成信号光（S）和参考光（R）的半反射镜（6），转换参考光（R）的偏振特性的波长板（7），移频器（8）参考光（R）的频率，半反射镜（6）将信号光（S）和参考光（R）相互叠加以产生干涉光（L），偏振分束器（11）来自干涉光（L）的偏振光，检测所提取的偏振干涉光（L）的CCD（21和22），以及信号处理部分（20），其基于偏振光与由t检测的每个光（B1和B2）相关的干涉光（L）他CCD（21和22）。

8. 发明公开

EP1630520A2 Apparatus and method of heterodyne interferometry for imaging 有权
标题翻译： Vorrichtung und VerfahrenfürBilderzeugung mittels Heterodyninterferometrie
公开(公告)号：EP1630520A2
公开(公告)日：2006-03-01
申请号：EP05016780.8
申请日：2005-08-02
申请人： Kabushiki Kaisha TOPCON
发明人： Chan, Kinpui , Akiba, Masahiro
IPC分类号： G01B11/24 , G01B9/02
CPC分类号： G01B9/02014 , G01B9/02003 , G01B9/02027 , G01B9/02069 , G01B9/02091 , G01B11/2441 , G01B2290/45 , G01B2290/70
摘要： The present invention relates to an optical image measuring apparatus for measuring the surface form or inner form of the object to be measured by using an optical heterodyne detection method to produce the image of the measured form. Provided is an optical image measuring apparatus capable of effectively obtaining a signal intensity of interference light and phase information thereof by improving detection sensitivity. The optical image measuring apparatus includes a broad-band light source for outputting a light beamwhose intensity is periodicallymodulated, a polarizingplate for converting the light beam to linearlypolarized light, a half mirror for dividing the light beam into signal light and reference light and superimposing the signal light and the reference light on each other to produce interference light, a wavelength plate for converting the reference light to circularly polarized light, a frequency shifter for shifting a frequency of the reference light, a reference mirror which is moved by a piezoelectric element, a polarization beam splitter for extracting an S-polarized light component and a P-polarized light component from the interference light, CCDs for detecting the respective polarized light components and outputting detection signals, and a signal processing portion for calculating a signal intensity of the interference light and a phase thereof based on the detection signals. An image of an object to be measured is formed based on a result obtained by calculation.
摘要翻译：光学图像测量装置本发明涉及一种光学图像测量装置，用于通过使用光学外差检测方法来测量待测物体的表面形式或内部形状，以产生测量形式的图像。提供一种能够通过提高检测灵敏度有效地获得干涉光的信号强度和相位信息的光学图像测量装置。光学图像测量装置包括用于输出周期性调制的光束的宽带光源，用于将光束转换为线性偏振光的偏光板，用于将光束分割为信号光的半反射镜和参考光，并叠加信号光和参考光彼此产生干涉光，用于将参考光转换成圆偏振光的波长板，用于移动参考光的频率的移频器，由压电元件移动的参考反射镜，用于从干涉光中提取S偏振光分量和P偏振光分量的偏振分束器，用于检测各个偏振光分量并输出检测信号的CCD;以及信号处理部分，用于计算干涉光的信号强度及其相位。基于通过计算得到的结果，形成被测量物体的图像。

9. 发明公开

EP1583260A2 Optical image transmitting system, optical image transmitting apparatus, optical image receiving apparatus, and optical image transmitting method 有权
标题翻译：光学图像传输系统，光学图像发送装置，光图像接收器和光学图像发送方法
公开(公告)号：EP1583260A2
公开(公告)日：2005-10-05
申请号：EP05007055.6
申请日：2005-03-31
申请人： Kabushiki Kaisha TOPCON
发明人： Chan, Kinpui , Akiba, Masahiro , Fukuma, Yasufumi, Kabushiki Kaisha TOPCON , Otsuka, Hiroyuki, Kabushiki Kaisha TOPCON , Tsukada, Hisashi, Kabushiki Kaisha TOPCON
IPC分类号： H04B10/145 , H04B10/148
CPC分类号： H04B10/61 , H04B10/50
摘要： Provided is an optical image transmitting system capable of producing signal light comprising plural image information and emitting the signal light, and in addition, receiving the signal light and selectively extracting target image information. An optical image transmitting system of the present invention comprises an optical image transmitting apparatus (100) for producing plural optical image information beams (S1 to Sn) representing plural optical image information and comprising light beams of different frequencies, superimposing the plural optical image information beams (S1 to Sn) into signal light (S) and emitting the signal light (S) through free space or an optical waveguide such as an image fiber, and an optical image receiving apparatus (200) for receiving the emitted signal light (S) and selectively detecting the optical image information beams (S1 to Sn) based on the frequency difference.
摘要翻译：本发明提供一种能够产生信号光包括多个图象信息和发射的信号光，并在另外的光学图像发送系统中，接收信号光并选择性地提取目标的图像信息。光学影像发送装置（100）的本发明包括用于制造多个光学图像信息的光束（S1至Sn）表示多个光学图像信息，并包括不同频率的光束，重叠多个光学图像信息的光束的光学图像传输系统（S1至Sn）转换成信号光（S），并发射通过自由空间或光学波导的信号光（S）：诸如图像纤维，以及光学图像接收装置（200），用于接收所发射的信号光（S）和选择性地检测基于所述频率差的光学图像信息的光束（S1到Sn）。

10. 发明授权

EP2757345B1 Image measuring method and image measuring apparatus 有权
公开(公告)号：EP2757345B1
公开(公告)日：2020-03-04
申请号：EP13004839.0
申请日：2013-10-08
申请人： Kabushiki Kaisha Topcon
发明人： Wang, Zhenguo , Yuan, Zhijia , Chan, Kinpui
IPC分类号： G01B9/02

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