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    Rapid scan spectral analysis system utilizing higher order spectral reflections of holographic diffraction gratings
    61.
    发明授权
    Rapid scan spectral analysis system utilizing higher order spectral reflections of holographic diffraction gratings 失效
    利用全息衍射光栅的高阶光谱反射的快速扫描光谱分析系统

    公开(公告)号：US4264205A

    公开(公告)日：1981-04-28

    申请号：US940360

    申请日：1978-09-07

    Applicant: Isaac J. Landa

    Inventor： Isaac J. Landa

    IPC: G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G01N21/31

    CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0221 ,  G01J3/0232 ,  G01J3/024 ,  G01J3/0262 ,  G01J3/10 ,  G01J3/26 ,  G01J3/2889 ,  G01N21/314 ,  G01J2003/1273 ,  G01J2003/2853 ,  G01J3/1838

    Abstract: An improved optical system is disclosed for rapid, accurate spectral analysis of the reflectivity or transmissivity of samples. A concave holographic diffraction grating oscillated at high speed is utilized to provide a rapid scanning of monochromatic light through a spectrum of wavelengths. The grating is positively driven at very high speed. The rapid scan by the grating enables the reduction of noise error by averaging over a large number of cycles. It also reduces the measurement time and thus prevents sample heating by excessive exposure to light energy. A filter wheel having opaque segments is rotated in the optical path and is synchronous with the grating. The filter wheel is divided into two arcuate segments separated by the opaque segments arranged approximately 180 degrees apart. One arcuate segment of the wheel transmits only first order light. The other arcuate segment transmits only second order light. Separate photodetectors are employed during infrared analysis of samples for detecting first order and second order wavelength transmissions and an electronic decoder apparatus is utilized for switching between detectors.

    Abstract translation: 公开了一种改进的光学系统，用于对样品的反射率或透射率进行快速，准确的光谱分析。 利用以高速振荡的凹面全息衍射光栅，通过一系列波长快速扫描单色光。 光栅以非常高的速度被正向驱动。 光栅的快速扫描使得能够通过大量循环的平均来减少噪声误差。 它还减少测量时间，从而防止过度暴露于光能的样品加热。 具有不透明段的滤光轮在光路中旋转并与光栅同步。 过滤轮被分成两个弧形段，这些弧段由分开大约180度的不透明段分开。 车轮的一个弧形段仅传送一级光。 另一个弧形段仅传送二阶光。 在用于检测一阶和二阶波长传输的样本的红外分析期间采用单独的光电检测器，并且使用电子解码器装置在检测器之间切换。

    Mobile phone hyperspectral imager with single-frame spatial, spectral and polarization information
    64.
    发明授权
    Mobile phone hyperspectral imager with single-frame spatial, spectral and polarization information 有权
    具有单帧空间，频谱和极化信息的手机高光谱成像仪

    公开(公告)号：US09551613B2

    公开(公告)日：2017-01-24

    申请号：US13248935

    申请日：2011-09-29

    Applicant: Zigurts Krishna Majumdar ,  Allan O. Steinhardt ,  Lyla Joanna Fischer

    Inventor： Zigurts Krishna Majumdar ,  Allan O. Steinhardt ,  Lyla Joanna Fischer

    IPC: G01J3/28 ,  G01J3/02

    CPC classification number: G01J3/0272 ,  G01J3/0221 ,  G01J3/0224 ,  G01J3/28 ,  G01J3/2823

    Abstract: A portable spectroscopic device for acquiring single-frame spatial, spectral, and polarization information of an object. The device includes a modular dispersion element assembly that is coupled to a mobile computing device and disperses light into a plurality of different wavelengths. The mobile computing device includes a sensor and is configured to receive and analyze the plurality of wavelengths. The mobile computing device is also configured to perform automatic calibrations to determine the absolute wavelength axis and make stray-light corrections with minimal user intervention, thus making it amenable for untrained users not familiar with the state of the art. The mobile computing device is also configured to extend dynamic range.

    Abstract translation: 一种用于获取物体的单帧空间，光谱和极化信息的便携式分光装置。 该装置包括耦合到移动计算装置并将光分散成多个不同波长的模块化色散元件组件。 移动计算设备包括传感器并被配置为接收和分析多个波长。 移动计算设备还被配置为执行自动校准以确定绝对波长轴并且以最小的用户干预进行杂散光校正，从而使得对于不熟悉现有技术的未经训练的用户来说是可行的。 移动计算设备还被配置为扩展动态范围。

    Handheld laser induced breakdown spectroscopy device
    65.
    发明授权
    Handheld laser induced breakdown spectroscopy device 有权
    手持激光诱导击穿光谱装置

    公开(公告)号：US09506869B2

    公开(公告)日：2016-11-29

    申请号：US14514294

    申请日：2014-10-14

    Applicant: TSI, Incorporated

    Inventor： Frederick Quant ,  Kenneth R. Farmer ,  Phillip V. Tan ,  Christopher B. Stipe ,  Steven G. Buckley ,  Erik Stockinger ,  Daniel Jensen

    IPC: G01N21/71 ,  G01J3/443 ,  G01J3/02 ,  G01J3/18

    CPC classification number: G01N21/718 ,  G01J3/0221 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/443 ,  G01J2003/1861 ,  G01N2201/0221 ,  G01N2201/0697

    Abstract: A novel device, method and systems disclosed managing the thermal challenges of LIBS laser components and a spectrometer in a handheld structure as well the use of simplified light signal collection which includes a bare fiber optic to collect the emitted light in close proximity to (or in contact with) the test material. In one example embodiment of the handheld LIBS device, a burst pulse frequency is 4 kHz is used resulting in a time between pulses of about 250 μs which is a factor of 10 above that of other devices in the prior art. In a related embodiment, an active Q-switched laser module is used along with a compact spectrometer module using a transmission grating to improve LIBS measurement while substantially reducing the size of the handheld analyzer.

    Abstract translation: 公开了一种新颖的装置，方法和系统，其管理LIBS激光组件和光谱仪在手持式结构中的热挑战，以及使用简化的光信号采集，其包括裸光纤以收集靠近（或 接触）测试材料。 在手持式LIBS装置的一个示例性实施例中，突发脉冲频率为4kHz，导致约250μs的脉冲之间的时间，这是现有技术中其他装置的10倍之多。 在相关实施例中，使用有源Q开关激光模块以及使用传输光栅的紧凑型光谱仪模块来改善LIBS测量，同时显着减小手持式分析仪的尺寸。

    FIBER OPTIC PROBE FOR REMOTE SPECTROSCOPY
    68.
    发明申请
    FIBER OPTIC PROBE FOR REMOTE SPECTROSCOPY 审中-公开
    用于远程光谱的光纤探针

    公开(公告)号：US20150377701A1

    公开(公告)日：2015-12-31

    申请号：US14766068

    申请日：2014-02-05

    Applicant: Rafal PAWLUCZYK ,  Paul FOURNIER

    Inventor： Rafal PAWLUCZYK ,  Paul FOURNIER

    IPC: G01J3/02 ,  G01J3/28 ,  G01J3/44

    CPC classification number: G01J3/0218 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0221 ,  G01J3/0243 ,  G01J3/2823 ,  G01J3/44 ,  G01J3/4412 ,  G01N21/65 ,  G01N2021/4742 ,  G01N2021/656

    Abstract: A fiber optic probe assembly is provided. The probe comprises a first optical system and a second optical system, a delivery light guide comprising one or more than one delivery optical fiber for transmitting excitation radiation from a radiation source disposed at a proximal end of the light guide to the first optical system. The first optical system comprising one or more than one first optical element for forming a substantially collimated illumination beam from the excitation radiation. An optically opaque tubular sleeve is fitted over the first optical system to optically isolate the first optical system and the delivery light guide from the second optical system. The second optical system comprising one or more than one second optical element for gathering optical radiation scattered from a sample and forming the optical radiation into a collection beam. A collection light guide comprising one or more than one collection optical fiber receives the collection beam and transmits the collection beam to an analyzer. The first and second optical systems are disposed within a housing so that an emission cone of the first optical system and an acceptance cone of the second optical system substantially overlap. A spectroscopic measurement system comprising the optic fiber probe is also provided.

    Abstract translation: 提供了光纤探针组件。 探针包括第一光学系统和第二光学系统，输送光导，其包括一个或多于一个的输送光纤，用于将设置在光导的近端处的辐射源的激发辐射传输到第一光学系统。 第一光学系统包括用于从激发辐射形成基本准直的照明光束的一个或多于一个的第一光学元件。 光学不透明的管状套管装配在第一光学系统上以将第一光学系统和输送光导从第二光学系统光学隔离。 第二光学系统包括一个或多于一个第二光学元件，用于收集从样品散射的光辐射并将光辐射形成收集束。 包括一个或多于一个收集光纤的收集光导件接收收集光束并将收集光束传输到分析器。 第一和第二光学系统设置在壳体内，使得第一光学系统的发射锥体和第二光学系统的接收锥体基本上重叠。 还提供了包括光纤探针的光谱测量系统。

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