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    Raman system for rapid sample indentification
    3.
    发明授权
    Raman system for rapid sample indentification 失效
    拉曼系统快速样品识别

    公开(公告)号：US06483581B1

    公开(公告)日：2002-11-19

    申请号：US09446673

    申请日：1999-12-22

    申请人： Dor Ben-Amotz ,  Yanan Jiang ,  Edward R. Grant ,  Ken Haber ,  George M. Laurence, Jr.

    发明人： Dor Ben-Amotz ,  Yanan Jiang ,  Edward R. Grant ,  Ken Haber ,  George M. Laurence, Jr.

    IPC分类号： G01J344

    CPC分类号： G01N21/65 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0272 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/44 ,  G01N21/85 ,  G01N2021/656

    摘要： A hand-held material identification apparatus 10 uses a spectrograph and detector array detecting a Raman spectrum produced by a sample illuminated by a laser source to recognize a variety of materials with a command to recognition time cycle of about one second or less. The width of the spectrum detected by each detector in the array is less than ¼th the excitation source wavelength deviation to permit smoothing of the spectrum detected by the discrete spectral elements to eliminate pixel noise without loss of Raman spectral information. The Raman spectra are produced by materials illuminated by an inexpensive near-infrared multimode laser operated in a pulse mode to deliver between 0.05 and 0.5 joules of photon energy, with the Raman spectra being detected before any significant heating of the sample occurs. The identification apparatus 10 qualitatively determines the chemical composition of reinforced and unreinforced copolymers and composites such as ABS, polypropylene, talc-filled polypropylene, polycarbonate, PMMA, polyethylene, and PVC, from samples of different colors and textures with a high degree of success without the need for special positioning or sample preparation.

    摘要翻译： 手持材料识别装置10使用检测由激光源照射的样品产生的拉曼光谱的光谱仪和检测器阵列，以识别大约1秒以下的识别时间周期的指令来识别各种材料。 由阵列中的每个检测器检测到的光谱的宽度小于激发源波长偏差的1/4，以允许平滑由离散光谱元素检测的光谱，以消除像素噪声而不损耗拉曼光谱信息。 拉曼光谱由以脉冲模式操作的便宜的近红外多模激光器照射的材料产生，以传递0.05至0.5焦耳的光子能量，在样品发生任何显着加热之前，检测拉曼光谱。 识别装置10从不同颜色和纹理的样品定性地确定增强和非增强共聚物和复合材料如ABS，聚丙烯，填充滑石的聚丙烯，聚碳酸酯，PMMA，聚乙烯和PVC的化学组成，而没有 需要特殊定位或样品制备。

    Raman probe with spatial filter and semi-confocal lens
    4.
    发明授权
    Raman probe with spatial filter and semi-confocal lens 失效
    具有空间滤光片和半透镜的拉曼探头

    公开(公告)号：US06310686B1

    公开(公告)日：2001-10-30

    申请号：US09447878

    申请日：1999-11-23

    申请人： Yanan Jiang

    发明人： Yanan Jiang

    IPC分类号： G01J344

    CPC分类号： G01N21/65 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0272 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/44 ,  G01N21/85 ,  G01N2021/656

    摘要： A material identification apparatus 10 uses a spectrograph and detector array detecting a Raman spectrum produced by a sample illuminated by a laser source to recognize a variety of materials. The Raman spectra are produced by materials illuminated by an inexpensive near-infrared multimode laser operated in a pulse mode to deliver between 0.05 and 0.5 joules of photon energy, with the Raman spectra being detected before any significant heating of the sample occurs. The identification apparatus 10 qualitatively determines the chemical composition of reinforced and unreinforced copolymers and composites such as ABS, polypropylene, talc-filled polypropylene, polycarbonate, PMMA, PVB, polyethylene, and PVC, from samples of different colors, layers, and textures with a high degree of success without the need for special sample preparation.

    摘要翻译： 材料识别装置10使用检测由激光源照射的样品产生的拉曼光谱的光谱仪和检测器阵列来识别各种材料。 拉曼光谱由以脉冲模式操作的便宜的近红外多模激光器照射的材料产生，以传递0.05至0.5焦耳的光子能量，在样品发生任何显着加热之前，检测拉曼光谱。 识别装置10从不同颜色，层和纹理的样品定性地确定增强和非增强共聚物和复合材料如ABS，聚丙烯，填充滑石的聚丙烯，聚碳酸酯，PMMA，PVB，聚乙烯和PVC的化学组成 高度成功，无需特殊的样品制备。

    Portable spectral imaging microscope system
    5.
    发明授权
    Portable spectral imaging microscope system 失效
    便携式光谱成像显微镜系统

    公开(公告)号：US06870612B2

    公开(公告)日：2005-03-22

    申请号：US10346540

    申请日：2003-01-17

    申请人： Yanan Jiang

    发明人： Yanan Jiang

    IPC分类号： G01N21/65 ,  G02B21/24 ,  G01J3/44

    CPC分类号： G01N21/65 ,  G01N21/6458 ,  G01N2021/656 ,  G01N2201/0221 ,  G02B21/241

    摘要： A portable spectral imaging microscope includes a probe head coupled via fiber optic cabling to a laser source and to a spectrograph. The probe head is coupled to a position controller that is mounted on a base suitable for positioning adjacent to a sample. The position controller has five degrees of freedom that permits one to adjust the position and direction of the probe head relative to the sample over a wide range of dimensions and angles. The entire probe head can be easily moved in order to precisely align the objective lens to stationary samples for simultaneous viewing and spectral analysis.

    摘要翻译： 便携式光谱成像显微镜包括通过光纤布线耦合到激光源和光谱仪的探头。 探针头连接到位置控制器，该位置控制器安装在适于邻近样品定位的基座上。 位置控制器具有五个自由度，允许在宽范围的尺寸和角度上相对于样品调节探头的位置和方向。 可以容易地移动整个探针头，以便将物镜精确地对准固定的样品，以便同时进行观察和光谱分析。