公开(公告)号：US20110299094A1

公开(公告)日：2011-12-08

申请号：US13201687

申请日：2009-02-23

Applicant: Robert F. Dillon ,  Neil H. K. Judell ,  Timothy I. Fillion ,  Gurpreet Singh ,  Nathan E. Wallace

Inventor： Robert F. Dillon ,  Neil H. K. Judell ,  Timothy I. Fillion ,  Gurpreet Singh ,  Nathan E. Wallace

IPC: G01B11/25 ,  G02F1/11 ,  G02B26/00

CPC classification number: G02B26/06 ,  G01B11/2441 ,  G01B11/2527 ,  G01J3/0229 ,  G01J3/26 ,  G01J3/45 ,  G02B5/32 ,  G02B21/361 ,  G02B27/0068 ,  G02B27/0087 ,  G02B2207/117 ,  G06T2200/04 ,  G06T2200/08

Abstract: Described are a method and apparatus for high-speed phase shifting of an optical beam. A transparent plate having regions of different optical thickness is illuminated by an optical beam along a path of incidence that extends through the regions. The transparent plate can be moved or the optical beam can be steered to generate the path of incidence. The optical beam exiting the transparent plate has an instantaneous phase value according to the region in which the optical beam is incident. Advantageously, the phase values are repeatable and stable regardless of the location of incidence of the optical beam within the respective regions, and phase changes at high modulation rates are possible. The method and apparatus can be used to modulate a phase difference of a pair of coherent optical beams such as in an interferometric fringe projection system.

Abstract translation: 描述了用于光束的高速相移的方法和装置。 具有不同光学厚度的区域的透明板被沿着延伸穿过该区域的入射路径的光束照射。 可以移动透明板或者使光束转向以产生入射路径。 离开透明板的光束根据光束入射的区域具有瞬时相位值。 有利地，无论光束在各个区域内的入射位置如何，相位值都是可重复和稳定的，并且高调制速率下的相位变化是可能的。 该方法和装置可以用于调制一对相干光束的相位差，例如在干涉条纹投影系统中。

公开(公告)号：US08010299B2

公开(公告)日：2011-08-30

申请号：US12094006

申请日：2006-11-16

Applicant: Börkur Arnvidarson

Inventor： Börkur Arnvidarson

IPC: G06F19/00

CPC classification number: G01J3/45

Abstract: The present invention offers an alternative strategy for the correlation of interference information to chemical and/or physical properties of a sample. This strategy can be implemented in a method and a system, which offer substantial technical and commercial advantages over state of the art techniques based on interference spectroscopy. The method comprises the steps of: a. obtaining an interferogram and/or at least one interferogram element corresponding to a modulation of electromagnetic signal emitted from, transmitted onto or through, or having interacted with at least a part of the sample, b. performing i. at least one transformation of the interferogram and/or a segment of the interferogram and/or an interferogram element with at least one function, ii. optionally repeating i) for another segment of the interferogram and/or interferogram element, wherein the transformation does not comprise a Fourier Transformation if i) is conducted only once, thereby obtaining at least one score, c. correlating said at least one score to the at least one chemical or physical property.

Abstract translation: 本发明提供了用于将干扰信息与样品的化学和/或物理性质相关的替代策略。 该策略可以在与基于干涉光谱技术的现有技术相比提供实质的技术和商业优势的方法和系统中实现。 该方法包括以下步骤：a。 b）获得干涉图和/或至少一个干涉图元素，所述干涉图元素对应于从至少部分样品b发射的或经过或已经与样品的至少一部分相互作用的电磁信号的调制。 表演我 干涉图和/或具有至少一个功能的干涉图和/或干涉图元素的段的至少一次变换，ii。 可选地重复i）干涉图和/或干涉图元素的另一段，其中如果i）仅进行一次，则转换不包括傅立叶变换，从而获得至少一个分数c。 将所述至少一个得分与所述至少一种化学或物理性质相关联。

公开(公告)号：US07864327B1

公开(公告)日：2011-01-04

申请号：US12351639

申请日：2009-01-09

Applicant: Dong Chen

Inventor： Dong Chen

IPC: G01B9/02 ,  G01B11/02 ,  G01J3/45

CPC classification number: G01B9/02079 ,  G01B9/02083 ,  G01B9/0209 ,  G01J3/45

Abstract: Sinusoidal in-phase and in-quadrature signals at a given spatial frequency are combined with the irradiance signals generating a correlogram of interest and integrated over the length of the correlogram data-acquisition scan. The integration outputs are then used to calculate the amplitude and the phase of the correlogram signal at the selected spatial frequency, thereby producing targeted spectral information. The signal generator used to generate the in-phase and in-quadrature sinusoidal signals may be scanned advantageously through any desired range of spatial frequencies, thereby producing corresponding amplitude and phase spectral information for the correlogram. Because the procedure produces spectral information independently of the number of data frames acquired during the interferometric scan, it is materially more rapid than conventional FFT analysis.

Abstract translation: 将给定空间频率处的正弦同相和正交信号与辐照度信号组合，产生感兴趣的相关图并在相关数据采集扫描的长度上积分。 然后，积分输出用于计算所选空间频率处的相关信号的幅度和相位，从而产生目标光谱信息。 用于产生同相和正交正弦信号的信号发生器可以有利地通过任何期望的空间频率范围进行扫描，由此产生相应的幅度和相位光谱信息。 因为该过程产生与干涉扫描期间获取的数据帧数量无关的光谱信息，因此它比传统的FFT分析快得多。

公开(公告)号：US07812312B2

公开(公告)日：2010-10-12

申请号：US10510017

申请日：2003-04-03

Applicant: Werner Mäntele ,  Oliver Klein ,  Christian Zscherp ,  Andreas Barth ,  Hermann Von Lillienfeld-Toal ,  Hellmuth Von Prollius ,  Frithjof von Germar ,  Heribert Offermanns

Inventor： Werner Mäntele ,  Oliver Klein ,  Christian Zscherp ,  Andreas Barth ,  Hermann Von Lillienfeld-Toal ,  Hellmuth Von Prollius ,  Frithjof von Germar ,  Heribert Offermanns

IPC: G01J5/02

CPC classification number: G01N21/552 ,  G01J3/45 ,  G01J2003/425 ,  G01N21/3577 ,  G01N21/85

Abstract: The invention relates to an infrared measuring device, especially for the spectrometry of aqueous systems. Said device comprises at least one measuring unit, especially a measuring cell, also comprising at least one ATR-body and at least one infrared light source. The measuring unit contains at least one ATR-body which comprises at least two planar, substantially parallel limiting surfaces and which is transparent with respect to measuring radiation and which has an index of refraction which is greater than that of the medium which is arranged next to at least one limiting surface and which is to be examined, especially larger or equal to 1.5. The IR-measuring radiation on at least one of the planar, parallel limiting surfaces of the ATR-body can be totally reflected in an attenuated manner by at least six times.

Abstract translation: 本发明涉及一种红外测量装置，特别是用于水系统的光谱测定。 所述装置包括至少一个测量单元，特别是测量单元，还包括至少一个ATR体和至少一个红外光源。 测量单元包含至少一个ATR体，该ATR体包括至少两个平坦的基本上平行的限制表面，并且其相对于测量辐射是透明的，并且其具有大于被布置在邻近的介质的折射率 至少一个限制表面，并且要被检查，特别是大于或等于1.5。 在ATR体的至少一个平面平行限制表面上的IR测量辐射可以以衰减方式全部反射至少六次。

公开(公告)号：US20100256938A1

公开(公告)日：2010-10-07

申请号：US12743693

申请日：2008-11-05

Applicant: Alain Rosak ,  Clémence Pierangelo

Inventor： Alain Rosak ,  Clémence Pierangelo

IPC: G01J3/45 ,  G06F19/00

CPC classification number: G01J3/45

Abstract: The invention relates according to a first aspect to an interferometric inversion method for measuring a characteristic variable of a radiation source and/or of a medium through which the radiation passes between the source and an interferometer, the interferometer being capable of generating an interferogram of the radiation by creating a finite number of optical step differences between two rays that have followed the same path between the source and the interferometer, characterized by the implementation of the steps whereby a quantity characterizing an improvement in the inversion is determined, step differences that contribute mainly to optimizing the quantity characterizing an improvement in the inversion are selected without sampling regularity constraints, and a free interferogram is generated using only the selected step differences. According to a second aspect, the invention provides an interferometer for implementing the method according to the first aspect of the invention.

Abstract translation: 本发明涉及根据第一方面的用于测量辐射源和/或辐射在源和干涉仪之间通过的介质的特征变量的干涉反演方法，所述干涉仪能够产生干涉图的干涉图 通过在源和干涉仪之间产生沿着相同路径的两条光线之间产生有限数量的光学步长的辐射，其特征在于执行步骤，由此确定表征反演改善的量，主要贡献的步差 在不采样规则约束的情况下选择表征反演改进的量的优化，并且仅使用所选择的步差产生自由干涉图。 根据第二方面，本发明提供了一种用于实现根据本发明的第一方面的方法的干涉仪。

公开(公告)号：US20100067827A1

公开(公告)日：2010-03-18

申请号：US12623322

申请日：2009-11-20

Applicant: Aydogan Ozcan ,  Michel J.F. Digonnet ,  Gordon S. Kino

Inventor： Aydogan Ozcan ,  Michel J.F. Digonnet ,  Gordon S. Kino

IPC: G06K9/36

CPC classification number: G06E3/003 ,  G01J3/45 ,  G01J11/00

Abstract: A method utilizes an optical image processing system. The method includes providing a measured magnitude of the Fourier transform of a complex transmission function of an object or optical image. The method further includes providing an estimated phase term of the Fourier transform of the complex transmission function. The method further includes multiplying the measured magnitude and the estimated phase term to generate an estimated Fourier transform of the complex transmission function. The method further includes calculating an inverse Fourier transform of the estimated Fourier transform, wherein the inverse Fourier transform is a spatial function. The method further includes calculating an estimated complex transmission function by applying at least one constraint to the inverse Fourier transform.

Abstract translation: 一种方法利用光学图像处理系统。 该方法包括提供物体或光学图像的复数传输函数的傅里叶变换的测量幅度。 该方法还包括提供复传输函数的傅立叶变换的估计相位项。 该方法还包括将测量的幅度和估计的相位项相乘以产生复数传输函数的估计傅里叶变换。 该方法还包括计算傅立叶逆变换的傅立叶逆变换，其中逆傅里叶变换是空间函数。 该方法还包括通过对傅里叶逆变换应用至少一个约束来计算估计的复传输函数。

公开(公告)号：US20090310877A1

公开(公告)日：2009-12-17

申请号：US12306473

申请日：2007-06-21

Applicant: Alois Henrichs ,  Stefan Weiss ,  Adrien Muller

Inventor： Alois Henrichs ,  Stefan Weiss ,  Adrien Muller

IPC: G06K9/36

CPC classification number: G01J3/45 ,  H04N19/11 ,  H04N19/46 ,  H04N19/593 ,  H04N19/80 ,  H04N19/91

Abstract: A process and apparatus for lossless data compression including the step of generating characteristic tables for predicted intensities as a function of radius values f(i,j)) on at least one type of preferred axes. Intensity signals of a detector matrix (I(i,j)) are used to implement the invention.

Abstract translation: 一种用于无损数据压缩的过程和装置，包括在至少一种类型的优选轴上产生作为半径值f（i，j）的函数的预测强度的特征表的步骤。 使用检测器矩阵（I（i，j））的强度信号来实现本发明。

公开(公告)号：US07502118B2

公开(公告)日：2009-03-10

申请号：US11677185

申请日：2007-02-21

Applicant: Isaac Shpantzer

Inventor： Isaac Shpantzer

IPC: G01B9/02 ,  G01J3/45

CPC classification number: G01N21/171 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0224 ,  G01J3/45 ,  G01J9/04 ,  G01N2021/1793 ,  G02B26/06

Abstract: A photo-thermal interferometric spectroscopy system is disclosed that provides information about a chemical at a remote location. A first light source assembly is included that emits a first beam. The first beam has one or more wavelengths that interact with the chemical and change a refractive index of the chemical. A second laser produces a second beam. The second beam interacts with the chemical resulting in a third beam with a phase change that corresponds with the change of the refractive index of the chemical. A detector system is positioned remote from the chemical to receive at least a portion of the third beam. An adaptive optics system at least partially compensates the light beam degradation caused by atmospheric turbulence. A focusing system is used to bring together the light passed through the chemical; the focusing system includes a multimode fiber for the light collection, The detector system provides information on a phase change in the third beam relative to the second beam that is indicative of at least one of, absorption spectrum and concentration of the chemical.

Abstract translation: 公开了一种在远程位置提供关于化学品的信息的光热干涉光谱系统。 包括发射第一光束的第一光源组件。 第一光束具有与化学物质相互作用并改变化学物质折射率的一种或多种波长。 第二激光器产生第二光束。 第二束与化学物质相互作用，导致具有与化学物质的折射率变化相对应的相变的第三光束。 检测器系统定位成远离化学品以接收第三束的至少一部分。 自适应光学系统至少部分补偿由大气湍流引起的光束退化。 聚焦系统用于将通过化学品的光汇集在一起​​; 聚焦系统包括用于光收集的多模光纤。检测器系统提供关于相对于第二光束的第三光束相变的信息，其指示化学品的吸收光谱和浓度中的至少一个。

公开(公告)号：US07446878B2

公开(公告)日：2008-11-04

申请号：US11560361

申请日：2006-11-16

Applicant: Trent Ridder ,  Ben ver Steeg ,  John D. Maynard ,  Zachary Benz

Inventor： Trent Ridder ,  Ben ver Steeg ,  John D. Maynard ,  Zachary Benz

IPC: G01B9/02 ,  G01J5/02 ,  G01J3/45

CPC classification number: G01J3/45 ,  G01J3/02 ,  G01J3/027

Abstract: The present invention provides methods and apparatuses that can improve measurement accuracy in interferometers. The invention provides methods for determining digital compensation filters that measure a frequency response or responses to be compensated, and then determining a filter target response from the inverse of the frequency response or responses. A digital compensation filter can be determined from the filter target response using a discrete sum of cosines with a phase argument. The invention also allows other desired filter responses to be integrated into the filter target response before determining the digital compensation filter.

Abstract translation: 本发明提供能够提高干涉仪的测量精度的方法和装置。 本发明提供了用于确定测量要补偿的频率响应或响应的数字补偿滤波器的方法，然后根据频率响应或响应的倒数来确定滤波器目标响应。 可以使用具有相位自变量的离散余弦和的滤波器目标响应来确定数字补偿滤波器。 在确定数字补偿滤波器之前，本发明还允许将其它期望的滤波器响应集成到滤波器目标响应中。

公开(公告)号：US20080120052A1

公开(公告)日：2008-05-22

申请号：US11560361

申请日：2006-11-16

Applicant: Trent Ridder ,  Ben ver Steeg ,  John D. Maynard ,  Zachary Benz

Inventor： Trent Ridder ,  Ben ver Steeg ,  John D. Maynard ,  Zachary Benz

IPC: G06F19/00

CPC classification number: G01J3/45 ,  G01J3/02 ,  G01J3/027

Abstract: The present invention provides methods and apparatuses that can improve measurement accuracy in interferometers. The invention provides methods for determining digital compensation filters that measure a frequency response or responses to be compensated, and then determining a filter target response from the inverse of the frequency response or responses. A digital compensation filter can be determined from the filter target response using a discrete sum of cosines with a phase argument. The invention also allows other desired filter responses to be integrated into the filter target response before determining the digital compensation filter.

Abstract translation: 本发明提供能够提高干涉仪的测量精度的方法和装置。 本发明提供了用于确定测量要补偿的频率响应或响应的数字补偿滤波器的方法，然后根据频率响应或响应的倒数来确定滤波器目标响应。 可以使用具有相位自变量的离散余弦和的滤波器目标响应来确定数字补偿滤波器。 在确定数字补偿滤波器之前，本发明还允许将其它期望的滤波器响应集成到滤波器目标响应中。