公开(公告)号：US08830474B2

公开(公告)日：2014-09-09

申请号：US12899024

申请日：2010-10-06

Applicant: Zhi Xu

Inventor： Zhi Xu

IPC: G01B9/02 ,  G01J3/45 ,  G01J3/453

CPC classification number: G01J3/4535

Abstract: A Fourier Transfer Infrared (FTIR) spectrophotometer having reduced baseline noise. The system and method include internal or external optical adapters having a moveable beamsplitter for splitting the source light beam into a reference beam and a sample beam, and may include a variable bandpass filter, variable preamplifier and reversed biased photodiodes.

Abstract translation: 具有降低的基线噪声的傅立叶转移红外（FTIR）分光光度计。 该系统和方法包括具有可移动分束器的内部或外部光学适配器，用于将源光束分成参考光束和采样光束，并且可以包括可变带通滤波器，可变前置放大器和反向偏置光电二极管。

公开(公告)号：US08786862B2

公开(公告)日：2014-07-22

申请号：US13003453

申请日：2009-07-10

Applicant: Maciej Wojtkowski ,  Maciej Szkulmowski ,  Tomasz Bajraszewski

Inventor： Maciej Wojtkowski ,  Maciej Szkulmowski ,  Tomasz Bajraszewski

IPC: G01B9/02 ,  G01B11/02 ,  G02F1/01 ,  G02F1/29 ,  G02B27/00 ,  G01J3/453

CPC classification number: G01B9/0201 ,  A61B3/102 ,  G01B9/02078 ,  G01B9/02091 ,  G01B2290/35 ,  G01J3/4535 ,  G01N21/4795 ,  G02B26/105 ,  G02B27/40

Abstract: The invention relates to an apparatus for generating a scannable optical delay for a beam of light and an apparatus for Fourier domain optical coherence tomography having said apparatus for generating a scannable optical delay in its reference arm (15). The light beam is directed to a pivotably driven mirror (10) from where it is reflected to a fixed mirror (12), and from there back retro reflected along the reference arm (5). Lens optics (9) are provided to ensure accurate optical alignment in several pivot positions of the pivotably driven mirror (10).

Abstract translation: 本发明涉及用于产生用于光束的可扫描光学延迟的装置和用于傅立叶域光学相干断层摄影的装置，其具有用于在其参考臂（15）中产生可扫描光学延迟的所述装置。 光束被引导到从其被反射到固定反射镜（12）的可枢转地驱动的反射镜（10），并且从该背面沿着参考臂（5）反射回来。 提供透镜光学元件（9）以确保在可枢转驱动的反射镜（10）的若干枢转位置的精确的光学对准。

公开(公告)号：US20140169706A1

公开(公告)日：2014-06-19

申请号：US14133174

申请日：2013-12-18

Applicant: Thermo Electron Scientific Instruments LLC

Inventor： John R. IVERSON

IPC: F16C33/16 ,  F16C29/02

CPC classification number: F16C33/16 ,  F16C29/02 ,  G01J3/0202 ,  G01J3/06 ,  G01J3/4535

Abstract: An all-graphite interferometer bearing assembly is introduced that allows the movement of a movable mirror in a Michelson interferometer without degradation during use. The assembly includes a stationary hollow graphite tube and a movable assembly which includes a mirror and a monolithic graphite member slidably disposed within the bore of the graphite tube that is composed of the same grade of graphite material as the monolithic graphite member. The result is a robust novel moving mirror arrangement in a Michelson interferometer that enables precise mirror alignment control, a long stroke length, excellent vibration damping and reduced sensitivity to external vibrations.

Abstract translation: 引入了全石墨干涉仪轴承组件，其允许在迈克尔逊干涉仪中移动可移动镜而不会在使用过程中退化。 组件包括固定的中空石墨管和可移动组件，其包括反射镜和可滑动地设置在石墨管的孔内的整体石墨构件，该石墨管由与整体式石墨构件相同等级的石墨材料组成。 结果是在迈克尔逊干涉仪中采用了坚固的新型移动反射镜装置，能够进行精确的镜面对准控制，长行程长度，优异的振动阻尼和对外部振动的灵敏度降低。

公开(公告)号：US08587787B2

公开(公告)日：2013-11-19

申请号：US11966594

申请日：2007-12-28

Applicant: David Reyes ,  E. Robert Schildkraut ,  Jinhong Kim

Inventor： David Reyes ,  E. Robert Schildkraut ,  Jinhong Kim

IPC: G01J3/45

CPC classification number: G01J3/4535 ,  G01B9/02051 ,  Y10T29/49002

Abstract: A Micro-Electro-Mechanical Systems (MEMS) interferometer is implemented in a Fourier transform spectrometer, which includes a common housing containing the interferometer and a gas cell, possibly including a preconcentrator. The interferometer system includes an optical bench and at least two mirror structures, being patterned from one or more layers on the optical bench and erected to extend substantially perpendicularly to the bench to define two interferometer arms to provide a MEMS interferometer.

Abstract translation: 微机电系统（MEMS）干涉仪在傅立叶变换光谱仪中实现，其包括含有干涉仪和气室的公共壳体，可能包括预浓缩器。 干涉仪系统包括光学台和至少两个镜面结构，从光学台上的一个或多个层进行图案化，并竖立成基本上垂直于工作台延伸，以限定两个干涉仪臂以提供MEMS干涉仪。

公开(公告)号：US20130188192A1

公开(公告)日：2013-07-25

申请号：US13583534

申请日：2012-04-26

Applicant: Jacob Riis Folkenberg ,  Hans Larsen

Inventor： Jacob Riis Folkenberg ,  Hans Larsen

IPC: G01J3/45

CPC classification number: G01J3/45 ,  G01J3/4535

Abstract: A spectrometric instrument comprising: a scanning interferometer having a beamsplitter for dividing incident optical radiation into a reflected beam, following a reflected beam path and a transmitted beam following a transmitted beam path; a monochromatic optical radiation source for launching a reference beam into the interferometer along a first propagation path to be initially incident on a first face of the beamsplitter; an observation optical radiation source for launching a divergent observation beam into the interferometer along a second propagation path to be initially incident on the first face of beamsplitter and overlap the reference beam at the first face; wherein the radiation sources cooperate to generate a first angle between the directions of propagation of the two beams along respective first and second propagation paths when initially and simultaneously incident at the first face which is larger than a divergence half-angle of the observation beam 64.

Abstract translation: 一种光谱仪，包括：扫描干涉仪，具有分束器，用于将入射光辐射分成反射光束，跟随反射光束路径和发射光束跟随传输光束路径; 用于沿着第一传播路径将参考光束发射到干涉仪中以最初入射在分束器的第一面上的单色光辐射源; 观测光辐射源，用于沿着第二传播路径将发散观测光束发射到干涉仪中，以最初入射到分束器的第一面上，并在第一面处与参考光束重叠; 其中所述辐射源在最初并且同时入射在大于所述观察光束64的发散半角的所述第一面时在所述两个光束沿着相应的第一和第二传播路径的传播方向之间产生第一角度。

公开(公告)号：US20130120755A1

公开(公告)日：2013-05-16

申请号：US13672728

申请日：2012-11-09

Applicant: BRUKER OPTIK GMBH

Inventor： Roland Harig ,  Joern-Hinnrich Gerhard

IPC: G01J3/28 ,  G01J3/45

CPC classification number: G01J3/2823 ,  G01B9/02044 ,  G01B9/02076 ,  G01B11/2441 ,  G01J3/2803 ,  G01J3/45 ,  G01J3/453 ,  G01J3/4535

Abstract: A method for the acquisition (AU) of a spectrally resolved, two-dimensional image by means of Fourier transform (=FT) spectroscopy or Fourier transform infrared (=FTIR) spectroscopy, is characterized in that, during multiple passes (D1-D4) of an optical path difference (OG) between two partial rays (14a, 14b) over an identical range (IB), different subsets of detector elements (22) of an array detector (5) are read out and the signals of the read-out detector elements (22) of the multiple passes (D1-D4) are Fourier transformed and combined to form the spectrally resolved image. A method is thereby provided for the acquisition of two-dimensional, spectrally resolved images, in which the influence of vibrations on the measurement is reduced, and which is less affected by the movement of objects to the resolved spectrally.

Abstract translation: 通过傅里叶变换（= FT）光谱或傅里叶变换红外（= FTIR）光谱法获取（AU）光谱分辨的二维图像的方法的特征在于，在多次通过期间（D1-D4） 读出在相同范围（IB）上的两个部分光线（14a，14b）之间的光程差（OG）的阵列检测器（5）的不同子集的检测器元件（22） 多通道（D1-D4）的检测器元件（22）被傅立叶变换并组合以形成光谱分辨图像。 因此，提供了一种用于获取二维光谱分辨图像的方法，其中振动对测量的影响减小，并且其受到光谱分解物体的移动的影响较小。

公开(公告)号：US20130107269A1

公开(公告)日：2013-05-02

申请号：US13581767

申请日：2011-03-17

Applicant: Tatsutoshi Shioda

Inventor： Tatsutoshi Shioda

IPC: G01J3/45

CPC classification number: G01J3/45 ,  G01B9/02083 ,  G01B9/0209 ,  G01J3/4535 ,  G01N21/17

Abstract: Every depth of the measurement object measures energy structural information, refractive index, transmittance, reflectance other than property information of (as for the resolution several microns), e.g., space information at the same time. A spectrum measurement device receives a reference wave propagating in a reference path and a measurement wave propagating in a measurement path having a start point same as a start point of the reference path, and derives a spectrum of the measurement wave. The space information of the measuring object, energy structural information, refractive index, transmittance, a reflective index using spectrum measurement device are derived.

Abstract translation: 测量对象的每个深度测量能量结构信息，折射率，透射率，反射率，而不是属性信息（如分辨率几微米），例如空间信息在同一时间。 频谱测量装置接收在参考路径中传播的参考波和在具有与参考路径的起始点相同的起始点的测量路径中传播的测量波，并且导出测量波的频谱。 导出测量对象的空间信息，能量结构信息，折射率，透射率，使用光谱测量装置的反射指数。

公开(公告)号：US20130044327A1

公开(公告)日：2013-02-21

申请号：US13421736

申请日：2012-03-15

Applicant: Jean-Michel GAUCEL ,  Didier MIRAS

Inventor： Jean-Michel GAUCEL ,  Didier MIRAS

IPC: G01J3/45

CPC classification number: G01J3/4535 ,  G01N21/3504 ,  G01N2021/1795 ,  G01N2021/3595

Abstract: In the field of Fourier transform interferometry and in particular a device and a method for improving the precision of such a device for remotely analysing a gaseous compound, a Fourier transform interferometer includes: at least one movable retroreflector; a metrology subsystem using at least three laser beams; and a metrology unit generating, for each sounding point represented by a pixel on the capture matrix imaging a gaseous compound, a metrology signal incorporating the displacements in space of the movable element(s).

Abstract translation: 在傅里叶变换干涉测量领域，特别是一种用于提高这种用于远程分析气体化合物的装置的精度的装置和方法，傅里叶变换干涉仪包括：至少一个可移动后向反射器; 使用至少三个激光束的计量子系统; 以及计量单元，对于由捕获矩阵上的像素表示的每个探测点，对气态化合物进行成像，所述测量信号包括在所述可移动元件的空间中的位移。

公开(公告)号：US20130003072A1

公开(公告)日：2013-01-03

申请号：US13393806

申请日：2010-08-30

Applicant: Christian Buil ,  Laurence Buffet ,  Bruno Belon ,  Cyril Degrelle ,  Christophe Buisset ,  Denis Simeoni

Inventor： Christian Buil ,  Laurence Buffet ,  Bruno Belon ,  Cyril Degrelle ,  Christophe Buisset ,  Denis Simeoni

IPC: G01B9/02

CPC classification number: G01J3/45 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0297 ,  G01J3/4532 ,  G01J3/4535

Abstract: The invention relates to a field-compensated interferometer (1) including an optical assembly (2) for directing incident light beams (4) having a field angle θ relative to an optical axis of the interferometer (1), into arms (5, 6) of the interferometer, and a beam splitter (12), the arms (5, 6) including at least one mechanically movable optical device (15, 16) for generating a variable optical path difference between beams generated by the separation of each incident beam (4) using said beam splitter (12), said interferometer (1) being characterized in that it includes at least one field compensation optical element (E) arranged in one or the other of the image focal planes of the optical assembly (2), said image focal planes being combined relative to the beam splitter (12), said element (E) including at least one surface (9) that is curved so as to generate a path difference between the incident beams having a non-zero field angle and the incident beams having a zero field angle, the generated path difference making it possible to compensate for the self-apodization resulting from the field angle.

Abstract translation: 本发明涉及一种场补偿干涉仪（1），其包括用于引导具有视场角的入射光束（4）的光学组件（2） 相对于所述干涉仪（1）的光轴到所述干涉仪的臂（5,6）和分束器（12）中，所述臂（5,6）包括至少一个可机械移动的光学装置（15,16） ），用于通过使用所述分束器（12）分离每个入射光束（4）产生的光束之间产生可变光程差，所述干涉仪（1）的特征在于其包括至少一个场补偿光学元件（E） 布置在光学组件（2）的图像焦平面中的一个或另一个中，所述图像焦平面相对于分束器（12）组合，所述元件（E）包括至少一个弯曲的表面（9） 为了产生具有非零场角的入射光束与具有零场角的入射光束之间的路径差，产生的路径差使得可以补偿由场角产生的自变迹。

公开(公告)号：US08203715B2

公开(公告)日：2012-06-19

申请号：US12466161

申请日：2009-05-14

Applicant: Ian S. Robinson

Inventor： Ian S. Robinson

IPC: G01B9/02

CPC classification number: G01J3/45 ,  G01J3/02 ,  G01J3/0278 ,  G01J3/28 ,  G01J3/4535

Abstract: A sensor and method for remotely determining a presence of a particular substance based on spectral data of the particular substance is disclosed. The sensor includes a sampling module configured to detect radiation from a particular substance using an interferometer, wherein the sampling module includes a control module that is configured to guide and measure spacing of samples taken by the sampling module; a focal plane module configured to detect and convert an interference pattern produced by the interferometer into a series of digital samples; a reference spectra modification module configured to modify reference spectra by modifying according to the measured spacing of samples and an instrument line shape of the sampling module; an estimation module configured to receive the converted series of digital samples and transform the non-uniformly spaced digital samples into frequency space using band centers determined from reference spectra as modified by the instrument line shape of the sampling module; a comparison module configured to compare the transformed digital samples against a database of known chemical signatures; and a determination module configured to determine the presence of the particular substance based on the results of the comparison.

Abstract translation: 公开了一种用于基于特定物质的光谱数据远程确定特定物质的存在的传感器和方法。 所述传感器包括被配置为使用干涉仪来检测来自特定物质的辐射的采样模块，其中所述采样模块包括控制模块，所述控制模块被配置为引导并测量由所述采样模块采集的采样的间隔; 焦平面模块，其被配置为检测并将由所述干涉仪产生的干涉图案转换成一系列数字样本; 参考光谱修改模块，被配置为通过根据样本的测量间距和采样模块的仪器线形状修改来修改参考光谱; 估计模块，被配置为接收经转换的一系列数字样本，并且使用由采样模块的仪器线形修改的参考光谱确定的频带中心将非均匀间隔的数字样本转换成频率空间; 比较模块，被配置为将经转换的数字样本与已知化学特征数据库进行比较; 以及确定模块，其被配置为基于所述比较的结果来确定所述特定物质的存在。