Method And Device For Interferometric Inversion With Free Sampling
    181.
    发明申请
    Method And Device For Interferometric Inversion With Free Sampling 有权
    用于自由采样干涉反演的方法和装置

    公开(公告)号:US20100256938A1

    公开(公告)日:2010-10-07

    申请号:US12743693

    申请日:2008-11-05

    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。

    SYSTEM AND METHOD FOR MEASURING DISPLAY QUALITY WITH A HYPERSPECTRAL IMAGER
    182.
    发明申请
    SYSTEM AND METHOD FOR MEASURING DISPLAY QUALITY WITH A HYPERSPECTRAL IMAGER 失效
    用超高速图像测量显示质量的系统和方法

    公开(公告)号:US20100245833A1

    公开(公告)日:2010-09-30

    申请号:US12410409

    申请日:2009-03-24

    Applicant: Hemang J. Shah

    Inventor: Hemang J. Shah

    Abstract: A system and method for measuring display quality by using a hyperspectral imager are disclosed. In one embodiment, the system comprises a hyperspectral imager configured to determine an intensity of light for a plurality of locations in a first area on a display for a plurality of spectral channels, and a processor configured to determine a measure of display quality based on the determined intensities.

    Abstract translation: 公开了一种通过使用高光谱成像仪测量显示质量的系统和方法。 在一个实施例中,该系统包括高光谱成像器,该高光谱成像器被配置为确定用于多个光谱通道的显示器上的第一区域中的多个位置的光强度;以及处理器,被配置为基于 确定强度。

    Sagnac fourier transform spectrometer having improved resolution
    184.
    发明授权
    Sagnac fourier transform spectrometer having improved resolution 失效
    Sagnac傅立叶变换光谱仪具有改进的分辨率

    公开(公告)号:US07733492B1

    公开(公告)日:2010-06-08

    申请号:US11431936

    申请日:2006-05-10

    CPC classification number: G01J3/02 G01J3/0208 G01J3/18 G01J3/453

    Abstract: Systems and methods are disclosed for a modified Sagnac interferometer having a plurality of gratings that can be reflective or transmissive. The gratings allow measurement of wavelength spectra in counter-circulating beams of the interferometer. In one embodiment, diffraction geometries at each pair of neighboring gratings are configured so that diffractive and angular contributions reinforce each other at the second of the pair of gratings. In one embodiment, diffraction geometries at the gratings are configured so that the exiting beams of the interferometer satisfy the crossing condition wherein the exiting beams are on the opposite sides of a reference beam axis for a design wavelength input beam. Also disclosed are techniques for restoring the reinforcement and/or crossing conditions when these conditions are not otherwise met.

    Abstract translation: 公开了用于具有可以是反射或透射的多个光栅的经修改的Sagnac干涉仪的系统和方法。 光栅允许测量干涉仪的反循环光束中的波长光谱。 在一个实施例中,每对相邻光栅处的衍射几何形状被配置为使得衍射和角度贡献在所述一对光栅中的第二对处彼此加强。 在一个实施例中,光栅处的衍射几何形状被配置为使得干涉仪的出射光束满足交叉条件,其中出射光束在设计波长输入光束的参考光束轴线的相对侧上。 还公开了当不满足这些条件时恢复加强和/或交叉条件的技术。

    SPECTROMETER AND A METHOD FOR CONTROLLING THE SPECTROMETER
    185.
    发明申请
    SPECTROMETER AND A METHOD FOR CONTROLLING THE SPECTROMETER 有权
    光谱仪和控制光谱仪的方法

    公开(公告)号:US20100097613A1

    公开(公告)日:2010-04-22

    申请号:US12524335

    申请日:2008-01-23

    Applicant: Heikki Saari

    Inventor: Heikki Saari

    CPC classification number: G01J3/10 G01J3/26 G01J3/433 G02B26/001

    Abstract: The invention relates to a spectrometer for material analysis and to a control method for a spectrometer. The spectrometer includes a radiant source (140) formed by multiple single radiation sources (141) having different central wavelengths, for generating a measuring signal, a measurement object (100) containing a material to be analyzed, at least one electrically tunable Fabry-Perot filter (120, 220) for the band pass filtering the measuring signal by at least two pass bands, and a detector (300, 400) for detecting said filtered measuring signals received from the measurement object (100). In accordance with the invention the spectrometer has means (312) for modulating each of the single radiation sources (141) and correspondingly means (307, 309) for demodulating the detected signals such that the signal from each single radiation source can be distinguished from each other in the detector (300, 400), and the spectrometer has means for detecting (300, 400) and demodulating (306, 307) multiple pass bands simultaneously.

    Abstract translation: 本发明涉及用于材料分析的光谱仪和用于光谱仪的控制方法。 光谱仪包括由具有不同中心波长的多个单一辐射源(141)形成的用于产生测量信号的辐射源(140),包含待分析材料的测量对象(100),至少一个电可调节法布里 - 珀罗 滤波器(120,220),用于通过至少两个通带对测量信号进行带通滤波;以及检测器(300,400),用于检测从测量对象(100)接收的所述滤波的测量信号。 根据本发明,光谱仪具有用于调制单个辐射源(141)和对应装置(307,309)中的每一个的装置(312),用于解调检测到的信号,使得可以将每个单个辐射源的信号与每个辐射源 另一个在检测器(300,400)中,并且光谱仪具有同时检测(300,400)和解调(306,307)多个通带的装置。

    METHOD FOR MEASURING A SPECTRUM OF A NARROWBAND LIGHT SOURCE, AND SPECTROMETER ARRANGEMENT
    186.
    发明申请
    METHOD FOR MEASURING A SPECTRUM OF A NARROWBAND LIGHT SOURCE, AND SPECTROMETER ARRANGEMENT 有权
    用于测量窄带光源的光谱的方法和光谱仪布置

    公开(公告)号:US20100079765A1

    公开(公告)日:2010-04-01

    申请号:US12558874

    申请日:2009-09-14

    CPC classification number: G01J3/26 G01J3/36

    Abstract: A spectrometer arrangement for measuring a spectrum of a light beam emitted by a narrowband light source, such as a bandwidth-narrowed laser, includes at least one etalon, a beam splitter for splitting the light beam into a first partial beam and a second partial beam, one or more optical directing elements for directing the first partial beam n times and the second partial beam (n+k) times through the at least one etalon, wherein n and k are integers ≧1. The spectrometer arrangement further has at least one light-sensitive detector and an evaluation device for evaluating the spectra—recorded by the at least one detector—of the first partial beam that has passed through the at least one etalon n times and of the second partial beam that has passed through the at least one etalon (n+k) times in order to determine the light spectrum corrected for the apparatus function of the at least one etalon.

    Abstract translation: 用于测量由窄带光源(例如带宽变窄的激光器)发射的光束的光谱的光谱仪装置包括至少一个标准具,用于将光束分成第一部分光束的分束器和第二部分光束 一个或多个用于通过至少一个标准具指导第一部分光束n次和第二部分光束(n + k)的光学引导元件,其中n和k是整数≥1。 光谱仪布置还具有至少一个光敏检测器和评估装置,用于评估已经通过至少一个标准具的第一部分光束的至少一个检测器记录的光谱n次和第二部分光束 已经通过至少一个标准具(n + k)次的光束,以便确定校正了至少一个标准具的装置功能的光谱。

    Method and apparatus for assessing purity of vegetable oils by means of terahertz time-domain spectroscopy
    187.
    发明授权
    Method and apparatus for assessing purity of vegetable oils by means of terahertz time-domain spectroscopy 有权
    通过太赫兹时域光谱法评估植物油纯度的方法和装置

    公开(公告)号:US07652769B2

    公开(公告)日:2010-01-26

    申请号:US11966057

    申请日:2007-12-28

    CPC classification number: G01N21/3586 G01N21/3577 G01N2201/1293

    Abstract: The present invention relates to a method for assessing the purity of vegetable oils by means of THz time-domain spectroscopy, comprising the steps of: measuring the THz time-domain spectra of standard vegetable oils to establish a spectral database; measuring the THz time-domain spectrum of vegetable oil to be detected; analyzing the purity of the detected vegetable oil based on the pre-built database. The present invention also relates to an apparatus for assessing purity of vegetable oil by means of THz time-domain spectroscopy, comprising: spectrum measuring device for measuring time-domain waveforms of THz pulses before and after transmitting the vegetable oil held in a container by transmission approach, or directly measuring time-domain waveforms of THz pulses before and after reflecting from the vegetable oil by reflection approach; and data processing device for extracting physical parameters of the vegetable oil in THz region according to the time-domain waveforms. Compared with the prior art, the method according to the present invention is easy, rapid and quantitative.

    Abstract translation: 本发明涉及通过THz时域光谱法评估植物油的纯度的方法,包括以下步骤:测量标准植物油的THz时域谱以建立光谱数据库; 测量要检测的植物油的THz时域谱; 基于预建的数据库分析检测出的植物油的纯度。 本发明还涉及通过太赫兹时域光谱法评价植物油的纯度的装置,其特征在于,包括:频谱测量装置,用于测量传输通过传输方式容纳在容器中的植物油之前和之后的THz脉冲的时域波形 或通过反射方法直接测量从植物油反射之前和之后的太赫兹脉冲的时域波形; 以及根据时域波形提取太赫兹区植物油物理参数的数据处理装置。 与现有技术相比,根据本发明的方法容易,快速和定量。

    Sensor, multichannel sensor, sensing apparatus, and sensing method
    188.
    发明授权
    Sensor, multichannel sensor, sensing apparatus, and sensing method 失效
    传感器,多通道传感器,感测装置和传感方法

    公开(公告)号:US07643156B2

    公开(公告)日:2010-01-05

    申请号:US11663739

    申请日:2006-06-14

    Abstract: A new and novel sensor having a simple structure with high detection sensitivity. The sensor (S1) includes the following from measuring light (L1) input side in the order listed below: a first reflector (10) having semi-transmissive and semi-reflective properties; a translucent body (20); and a second reflector (30) having perfect reflection properties, or semi-transmissive and semi-reflective properties. The first reflector (10) and/or second reflector is brought into contact with a specimen, and the average complex refractive index varies with the specimen. Absorption properties for absorbing light having a particular wavelength are produced by these components, the properties of the measuring light (L1) are changed by the optical properties including the absorption properties, the output light (L2) is outputted from the first reflector (10) and/or second reflector (30), and the physical properties of the output light (L2) that vary according to the optical properties are detected.

    Abstract translation: 一种新型和新颖的传感器,具有检测灵敏度高的简单结构。 传感器(S1)包括以下顺序的测量光(L1)输入侧:具有半透射和半反射特性的第一反射器(10) 半透明体(20); 以及具有完美的反射特性或半透射和半反射特性的第二反射器(30)。 第一反射器(10)和/或第二反射器与样品接触,并且平均复合折射率随样品而变化。 通过这些组分产生用于吸收具有特定波长的光的吸收性质,通过包括吸收特性的光学特性改变测量光(L1)的性质,从第一反射器(10)输出输出光(L2) 和/或第二反射器(30),并且检测根据光学特性而变化的输出光(L2)的物理性质。

    Interferometer maintaining optical relationship between elements
    189.
    发明授权
    Interferometer maintaining optical relationship between elements 有权
    干涉仪保持元件之间的光学关系

    公开(公告)号:US07630081B2

    公开(公告)日:2009-12-08

    申请号:US11622815

    申请日:2007-01-12

    CPC classification number: G01J3/4535 G01J3/02 G01J3/0202 G01J3/0286

    Abstract: An interferometer for Fourier transform infrared spectroscopy includes a fixed assembly including a housing, a beam splitter, and a mirror fixedly positioned relative to each other. A movable assembly includes a housing, a mirror, and a motor coil, fixedly positioned relative to each other. A first flat spring has an opening for providing an unobstructed optical path of radiation therethrough. A first end of the first flat spring is secured to the fixed assembly and a second end of the first flat spring is secured to the movable assembly for providing movement of the movable assembly relative to the fixed assembly via the first flat spring. An optical relationship between the beam splitter, the mirror of the fixed assembly, and the mirror of the movable assembly is maintained independent of a distance between the movable assembly and the fixed assembly.

    Abstract translation: 用于傅里叶变换红外光谱的干涉仪包括固定组件,其包括壳体,分束器和相对于彼此固定定位的反射镜。 可移动组件包括相对于彼此固定地定位的壳体,反射镜和电动机线圈。 第一扁平弹簧具有用于提供通过其的无障碍的光路径的开口。 第一扁平弹簧的第一端被固定到固定组件上,并且第一平板弹簧的第二端固定到可移动组件,以通过第一平板弹簧提供可移动组件相对于固定组件的运动。 分束器,固定组件的反射镜和可移动组件的反射镜之间的光学关系保持独立于可移动组件和固定组件之间的距离。

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