公开(公告)号：US5203339A

公开(公告)日：1993-04-20

申请号：US722823

申请日：1991-06-28

Applicant: Alexander Knuttel ,  Jay R. Knutson

Inventor： Alexander Knuttel ,  Jay R. Knutson

IPC: G01J1/04 ,  G01J9/02 ,  G01N21/41 ,  G01N21/45 ,  G01N21/47 ,  G01N21/65 ,  G01N21/76 ,  G01N21/85 ,  G01N27/447

CPC classification number: G01J1/04 ,  G01J1/0422 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0216 ,  G01N21/4795 ,  G01N27/44721 ,  G01J2009/0203 ,  G01N2021/1738 ,  G01N2021/1759 ,  G01N2021/178 ,  G01N2021/1782 ,  G01N2021/4173 ,  G01N2021/451 ,  G01N2021/4702 ,  G01N21/645 ,  G01N21/65 ,  G01N21/76 ,  G01N21/85 ,  G01N2201/0893

Abstract: Imaging of a turbid object utilizes interference among the modulation wavefronts of a plurality of modulated light rays propagating through the object by diffusion and having predetermined phases relative to one another. A computer controlled phase and amplitude selecting device, such as a zone plate, is used to modulate light rays at appropriate phases in order to obtain constructive interference only at a predetermined portion of the object, including one or more preselected voxels. The rays reflected from (or diffusively transmitted through) the predetermined portion are received simultaneously at a detector, thus providing simultaneously all the data necessary to describe or image the portion. A single detector element may be used to detect the scattered reflected or transmitted light from the portion and to generate a signal representing the amplitude and phase characteristics for the modulation wavefront, thereby to provide absorption (and other) characteristics descriptive of the portion. An array of detectors may be used to detect the light from a plurality of individual voxels simultaneously and to provide such characteristics for each of the voxels. By dynamically controlling the phase and amplitude selecting device, the voxels selected for imaging are changed without mechanical scanning. Light rays having different frequencies may be modulated to provide complete absorption spectra for an arbitrarily selected portion of the object.

Abstract translation: 浑浊物体的成像利用通过扩散传播通过物体的多个调制光线的调制波前的相互干扰，并相对于彼此具有预定的相位。 使用计算机控制的相位和幅度选择装置（例如区域板）在适当的相位调制光线，以便仅在物体的预定部分（包括一个或多个预选的体素）处获得建设性的干扰。 从（或扩散传输）预定部分反射的光线在检测器处同时接收，从而同时提供描述或成像该部分所需的所有数据。 可以使用单个检测器元件来检测来自该部分的散射的反射或透射的光并且产生表示调制波前的幅度和相位特性的信号，从而提供描述该部分的吸收（和其它）特性。 可以使用一组检测器来同时检测来自多个单独体素的光，并为每个体素提供这样的特征。 通过动态地控制相位和幅度选择装置，选择用于成像的体素没有机械扫描而改变。 可以调制具有不同频率的光线，以便为对象的任意选择的部分提供完整的吸收光谱。

公开(公告)号：WO2010064022A1

公开(公告)日：2010-06-10

申请号：PCT/GB2009/002826

申请日：2009-12-04

Applicant: QINETIQ LIMITED ,  BURNETT, James, Gordon ,  SCOTT, Andrew, Maxwell ,  JONES, David, Caradoc ,  WOODS, Simon, Christopher

Inventor： BURNETT, James, Gordon ,  SCOTT, Andrew, Maxwell ,  JONES, David, Caradoc ,  WOODS, Simon, Christopher

IPC: G01J9/04 ,  G01J9/00 ,  G01J9/02

CPC classification number: G01J9/04 ,  G01J2009/002 ,  G01J2009/0203 ,  G01J2009/0226

Abstract: Wavefront sensing apparatus comprises a beam splitter (106) for combining a wavefront to be characterised (105) with a frequency-shifted plane wavefront (111) and a bundle of optical fibres (112) arranged to detect the combined beam at a plurality of positions across the combined beam. Output from individual fibres of the bundle are detected to produce corresponding heterodyne signals, the phases of which are extracted by demodulation. By fitting the extracted phases to an assumed functional form for the phase of the wavefront to be characterised, the piston, tip, tilt and radius of curvature phase parameters of the wavefront to be characterised may be found at the position of the fibre bundle. In contrast, prior art methods of wavefront characterisation only allow the piston phase of the wavefront to be characterised to be obtained.

Abstract translation: 波前感测装置包括用于将要表征的波阵面（105）与频移平面波前（111）和一束光纤（112）组合的分束器（106），其布置成在多个位置处检测组合的波束 横跨组合梁。 检测到束的各个光纤的输出，以产生相应的外差信号，其相位通过解调提取。 通过将提取的相位拟合为要表征的波阵面的相位的假设函数形式，可以在纤维束的位置处找到要表征的波阵面的活塞，尖端，倾斜和曲面半径相位参数。 相比之下，波前表征的现有技术方法仅允许获得波阵面的活塞相位。

公开(公告)号：WO1993000045A1

公开(公告)日：1993-01-07

申请号：PCT/US1992005331

申请日：1992-06-25

Applicant: THE UNITED STATES OF AMERICA, as represented by ...

Inventor： THE UNITED STATES OF AMERICA, as represented by ... ,  KNUTTEL, Alexander ,  KNUTSON, Jay

IPC: A61B06/00

CPC classification number: G01J1/04 ,  G01J1/0422 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0216 ,  G01J2009/0203 ,  G01N21/4795 ,  G01N21/645 ,  G01N21/65 ,  G01N21/76 ,  G01N21/85 ,  G01N27/44721 ,  G01N2021/1738 ,  G01N2021/1759 ,  G01N2021/178 ,  G01N2021/1782 ,  G01N2021/4173 ,  G01N2021/451 ,  G01N2021/4702 ,  G01N2201/0893

Abstract: Imaging of a turbid object utilizes interference among the modulation wavefronts (24) of a plurality of modulated light rays (22) propagating through the object by diffusion and having predetermined phases relative to one another. A computer controlled phase and amplitude selecting device, such as a zone plate (34) is used to modulate light rays at appropriate phases in order to obtain constructive interference only at a predetermined portion of the object, including one or more preselected voxels (26). The rays reflected from (or diffusively transmitted through) the predetermined portion are received simultaneously at a detector (16) thus providing simultaneously all the data necessary to describe or image the portion. A single detector (16) element may be used to detect the scattered reflected or transmitted light from the portion and to generate a signal representing the amplitude and phase characteristics for the modulation wavefront, thereby to provide absorption (and other) characteristics descriptive of the portion.

公开(公告)号：WO2009058747A1

公开(公告)日：2009-05-07

申请号：PCT/US2008/081402

申请日：2008-10-28

Applicant: AMO WAVEFRONT SCIENCES, LLC. ,  RAYMOND, Thomas, D. ,  PULASKI, Paul ,  FARRER, Stephen, W. ,  NEAL, Daniel, R. ,  GREENAWAY, Alan, H. ,  FAICHNIE, David, M. ,  CAMPBELL DALGARNO, Heather, I. ,  CRAIK, Graham, N.

Inventor： RAYMOND, Thomas, D. ,  PULASKI, Paul ,  FARRER, Stephen, W. ,  NEAL, Daniel, R. ,  GREENAWAY, Alan, H. ,  FAICHNIE, David, M. ,  CAMPBELL DALGARNO, Heather, I. ,  CRAIK, Graham, N.

IPC: G01J1/02 ,  G01J1/04

CPC classification number: G01J9/00 ,  G01J2009/002 ,  G01J2009/0203

Abstract: 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.

Abstract translation: 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。

公开(公告)号：EP2645053A1

公开(公告)日：2013-10-02

申请号：EP13159880.7

申请日：2013-03-19

Applicant: Canon Kabushiki Kaisha

Inventor： Iijima, Hitoshi ,  Maeda, Atsushi

IPC: G01B9/02 ,  G01M11/00 ,  G01B11/24 ,  G01J9/00

CPC classification number: G01B11/2441 ,  G01B9/02027 ,  G01B9/02039 ,  G01B9/02088 ,  G01B9/0209 ,  G01B2290/70 ,  G01J2009/002 ,  G01J2009/0203 ,  G01M11/025 ,  G01M11/0271 ,  Y10T29/49826

Abstract: To eliminate influence of undesirable light component from an object when measuring optical characteristics such as shape and wavefront aberration of the object, light from light source (101) is separated by polarization beam splitter (103) into measuring light (L1) that irradiates and travels via the object (108) and is condensed on image plane (P) through microlenses (114a) of microlens array (114), and reference light (L2) that does not irradiate the object and is guided to the image plane by reference light optical system (109). A computer (113) acquires picked-up images sequentially from CCD image sensor (116) arranged on the image plane while changing optical path length of the reference light by movable stage (117), extracts interference light spots generated through interference between signal light component and the reference light from the picked-up images, calculates positions of the interference light spots, and calculates deviation amounts of positions from predetermined reference positions.

Abstract translation: 为了从在对象消除有害光分量的影响在测量光学特性：如所述对象的形状和波前像差，从光源（101）的光被偏振分束器（103）分离成测量光（L1）没有照射和行进 通过对象（108）和平面会聚在图像（P）通过微透镜阵列（114）和参考光（L2）的微透镜（114a）的根本不照射该对象，并通过参考光引导至图像平面 系统（109）。 一种计算机（113）获取从布置在图像平面上，同时由可移动台（117）改变参考光的光路长度的CCD图像传感器（116）拍摄图像顺序地，萃取物通过信号光成分之间的干涉产生的干涉光点 并从拍摄图像的参照光，计算所述干扰光点的位置，并且计算从预定基准位置的位置的偏离量。

公开(公告)号：EP2243007A1

公开(公告)日：2010-10-27

申请号：EP08844854.3

申请日：2008-10-28

Applicant: AMO WaveFront Sciences, LLC

Inventor： RAYMOND, Thomas, D. ,  PULASKI, Paul ,  FARRER, Stephen, W. ,  NEAL, Daniel, R. ,  GREENAWAY, Alan, H. ,  FAICHNIE, David, M. ,  CAMPBELL DALGARNO, Heather, I. ,  CRAIK, Graham, N.

IPC: G01J1/02 ,  G01J1/04

CPC classification number: G01J9/00 ,  G01J2009/002 ,  G01J2009/0203

Abstract: 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.

公开(公告)号：KR1020160063177A

公开(公告)日：2016-06-03

申请号：KR1020140166877

申请日：2014-11-26

Applicant: 한국전자통신연구원

Inventor： 박형준 ,  임권섭 ,  강현서 ,  고재상 ,  김거식 ,  김영선 ,  김정은 ,  류지형 ,  전은경

IPC: G01J9/02 ,  G01J1/02

CPC classification number: H04B10/07957 ,  H04B10/07955 ,  G01J9/02 ,  G01J1/02 ,  G01J2009/0203

Abstract: 광파장및 광파워측정용장치가개시된다. 본발명의일 실시예에따른광파장및 광파워측정용장치는적외선파장영역의통신광원을방사하는광커넥터가연결되는입력부, 상기입력부에연결되고상기광커넥터에서방사되는상기적외선파장영역의통신광원과가시광선파장영역을분리하기위한필터부, 상기필터부중 상기적외선파장영역의통신광원경로와연통되고상기적외선파장영역의통신광원신호가입력되는센싱부, 상기필터부중 상기가시광선파장영역의경로와연통되고상기입력부에연결된상기광커넥터의표면을검사하기위한검사부; 상기센싱부및 상기검사부와연결되고상기센서부및 상기검사부에서출력되는신호를처리하는신호처리부및 상기신호처리부와연결되고상기신호처리부의처리된신호를표시하는모니터부를포함한다.

Abstract translation: 公开了一种用于测量光波和光功率的装置。 用于测量光波和光功率的装置包括：输入单元，连接到发射红外波长区的通信光源的光连接器; 滤波器单元，其将可见波长区域与红外波长区域的通信光源分离并连接到输入单元，并从光连接器发射; 感测单元，其连接到来自滤波单元的红外波长区域的通信光源的路径，并接收红外波长区域的通信光源的信号; 测试光连接器的表面的测试单元连接到来自滤波器单元的可见波长区域的路径，并连接到输入单元; 信号处理单元，连接到感测单元和测试单元，并处理从传感器单元和测试单元输出的信号; 以及监视器单元，其连接到所述信号处理单元，并且显示在所述信号处理单元中处理的信号。

公开(公告)号：JP5988643B2

公开(公告)日：2016-09-07

申请号：JP2012069563

申请日：2012-03-26

Applicant: キヤノン株式会社

Inventor： 飯島 仁 ,  前田 充史

IPC: G01M11/02 ,  G01B11/24 ,  G01B9/02

CPC classification number: G01B11/2441 ,  G01B9/02027 ,  G01B9/02039 ,  G01B9/02088 ,  G01B9/0209 ,  G01M11/025 ,  G01M11/0271 ,  G01B2290/70 ,  G01J2009/002 ,  G01J2009/0203 ,  Y10T29/49826

公开(公告)号：JP2013200257A

公开(公告)日：2013-10-03

申请号：JP2012069563

申请日：2012-03-26

Applicant: Canon Inc ,  キヤノン株式会社

Inventor： IIJIMA HITOSHI ,  MAEDA ATSUSHI

IPC: G01B9/02 ,  G01B11/24 ,  G01M11/02

CPC classification number: G01B11/2441 ,  G01B9/02027 ,  G01B9/02039 ,  G01B9/02088 ,  G01B9/0209 ,  G01B2290/70 ,  G01J2009/002 ,  G01J2009/0203 ,  G01M11/025 ,  G01M11/0271 ,  Y10T29/49826

Abstract: PROBLEM TO BE SOLVED: To exclude an influence of an unnecessary light component from an analyte when measuring optical characteristics such as a shape and a wavefront aberration of the analyte.SOLUTION: Emission light emitted from a light source 101 is separated into measurement light L1 irradiating an analyte 108 and reference light L2 not irradiating the analyte, by a polarization beam splitter 103. The measurement light L1 passing the analyte is condensed on an imaging surface P by a plurality of microlenses 114a of a microlens array 114. The reference light L2 is guided to the imaging surface P by a reference light optical system 109. A computer 113 successively acquires a plurality of captured images from a CCD image sensor 116 disposed on the imaging surface P while changing an optical path length of the reference light by a moving stage 117. The computer 113 extracts an interference light spot occurring due to interference between a signal light component and the reference light, from the plurality of captured images to calculate a centroid position of the interference light spot and calculates a displacement of the centroid position from a preliminarily determined reference position.

Abstract translation: 要解决的问题：在测量诸如分析物的形状和波面像差的光学特性的光学特性时，从分析物中排除不必要的光成分的影响。解决方案：从光源101发射的发射光被分离成照射的测量光L1 分析物108和不通过偏振分束器103照射分析物的参考光L2。通过分析物的测量光L1通过微透镜阵列114的多个微透镜114a在成像表面P上会聚。参考光L2是 通过参考光学系统109被引导到成像面P.计算机113从设置在成像面P上的CCD图像传感器116连续获取多个拍摄图像，同时通过移动台改变参考光的光路长度 计算机113提取由于信号光分量与参考光之间的干扰而发生的干涉光点 从多个拍摄图像中计算干涉光点的质心位置，并计算重心位置与预先确定的基准位置的位移。

公开(公告)号：KR1020030010881A

公开(公告)日：2003-02-06

申请号：KR1020010045537

申请日：2001-07-27

Applicant: 전금수 ,  강동성 ,  김희주 ,  반재경

Inventor： 전금수 ,  김희주 ,  반재경 ,  강동성

IPC: G01J9/00

CPC classification number: G01J9/0246 ,  G01D5/35303 ,  G01J2009/0203 ,  G01J2009/0249

Abstract: PURPOSE: A system and a method for measuring chromatic dispersion are provided to measure chromatic dispersion with accurate solution, and easily measure chromatic dispersion of an optical fiber already installed in the field. CONSTITUTION: A system for measuring chromatic dispersion includes a tunable laser source(10) which is a light source for measuring chromatic dispersion; an optical fiber 3dB coupler(30) dividing a path of light provided from the wavelength variable laser through a circulator(20), and coupling predetermined optical signals; an MZ(Mach Zehnder) modulator(40) backward and forward modulating light provided being divided into clockwise direction and counterclockwise direction through the optical fiber 3dB coupler by an RF signal provided from the outside; a Sagnac interferometer having a fiber under test(FUT) inserted into clockwise path between the optical fiber 3dB coupler and the MZ modulator for modulating light by the delayed signal as much as the corresponding length in case of forward modulation of the MZ modulator; a photo detector(50) receiving the backward and forward modulated light through the optical fiber 3dB coupler and the circulator; a circuit network analyser(60) providing the RF signal to the MZ modulator and obtaining a transfer function of the signal received in the photo detector; and a computer(70) calculating a delayed time corresponding to asymmetrical length of the FUT by using the obtained transfer function, thereby obtaining chromatic dispersion.

Abstract translation: 目的：提供一种用于测量色散的系统和方法，以精确的解决方案测量色散，并且可以容易地测量已经安装在现场的光纤的色散。 构成：用于测量色散的系统包括可调谐激光源（10），其是用于测量色散的光源; 光纤3dB耦合器（30），其通过循环器（20）对从所述波长可变激光器提供的光的路径进行分割，并耦合预定的光信号; MZ（Mach Zehnder）调制器（40）通过由外部提供的RF信号通过光纤3dB耦合器提供向后和向前调制的光，被分为顺时针方向和逆时针方向; 具有被测纤维（FUT）的Sagnac干涉仪插入到光纤3dB耦合器和MZ调制器之间的顺时针通路中，用于在MZ调制器的正向调制的情况下，通过延迟信号调制光与对应的长度一样多; 通过光纤3dB耦合器和循环器接收后向和前向调制光的光电检测器（50）; 向MZ调制器提供RF信号并获得在光检测器中接收的信号的传递函数的电路网络分析器（60） 以及计算机（70），通过使用所获得的传递函数来计算与所述FUT的非对称长度对应的延迟时间，从而获得色散。