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    Holographic diffraction grating system for rapid scan spectral analysis
    202.
    发明授权
    Holographic diffraction grating system for rapid scan spectral analysis 失效
    全息衍射光栅系统用于快速扫描光谱分析

    公开(公告)号：US4285596A

    公开(公告)日：1981-08-25

    申请号：US825155

    申请日：1977-08-16

    Applicant: Isaac J. Landa

    Inventor： Isaac J. Landa

    IPC: G01N21/27 ,  G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G01J3/42 ,  G01J3/433 ,  G01N21/31

    CPC classification number: G01J3/26 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0221 ,  G01J3/0232 ,  G01J3/024 ,  G01J3/0262 ,  G01J3/06 ,  G01J3/10 ,  G01J3/2889 ,  G01J3/433 ,  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 by a unique cam drive structure comprising identically shaped conjugate cams. 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 dark segments for drift correction is rotated in the optical path and is synchronous with the grating. Source optics is employed to optimally shape the light source for particular applications. The system optics further includes a unique arrangement of lenses, including cylindrical lenses, to obtain the best light source shape which results in maximum light throughput. Fiber optics are also employed and arranged to meet the optimum requirements of the system for light collection and transmission through portions of the optical system.

    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。 光栅通过包括相同形状的共轭凸轮的独特的凸轮驱动结构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。 具有用于漂移校正的暗段的滤光轮在光路中旋转并与光栅同步。 源光学器件用于为特定应用最佳地形成光源。 系统光学器件还包括透镜的独特布置，包括柱面透镜，以获得最佳的光源形状，其导致最大光通量。 还采用并布置光纤以满足通过光学系统的部分的光收集和透射的系统的最佳要求。

    Spectral colorimetric apparatus
    203.
    发明公开
    Spectral colorimetric apparatus 审中-公开
    光谱比色仪

    公开(公告)号：EP2246676A3

    公开(公告)日：2017-12-20

    申请号：EP10161413.9

    申请日：2010-04-29

    Applicant: Canon Kabushiki Kaisha

    Inventor： Kimura, Kazumi ,  Teramura, Masayasu ,  Tochigi, Nobuyuki ,  Takizawa, Tokuji

    IPC: G01J3/02 ,  G01J3/50

    CPC classification number: G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/024 ,  G01J3/50 ,  G01J3/502

    Abstract: A spectral colorimetric apparatus for detecting a color of an image of a test subject illuminated includes a stop; a spectral detection optical system for spectrally detecting a beam diffused in the test subject and passing through the stop; and a guiding optical system for guiding, toward the stop, the beam diffused in the test subject, wherein in a first section which is a section including an optical axis of the guiding optical system, condensing positions of the light beam condensed by the guiding optical system change depending on a position in a direction orthogonal to the first section, and the stop is disposed between condensing positions closest to and farthest from the guiding optical system, of condensing positions, in the first section, of the beam condensed by the guiding optical system, in a direction of the optical axis of the guiding optical system.

    Abstract translation: 一种用于检测照亮的测试对象的图像的颜色的光谱测色装置包括光阑; 光谱检测光学系统，用于光谱检测在测试对象中扩散并通过光阑的光束; 以及引导光学系统，用于朝向所述光阑引导漫射在所述测试对象中的所述光束，其中，在作为包括所述引导光学系统的光轴的区段的第一区段中，由所述引导光学装置聚集的所述光束的聚光位置 系统根据垂直于第一部分的方向上的位置而改变，并且光阑位于由导光光学系统聚集的光束的第一部分中的聚光位置中最靠近导光光学系统并且距离导光光学系统最远的聚光位置之间 系统沿着引导光学系统的光轴的方向。

    SPECTROMETER AND METHOD OF SPECTROSCOPY
    207.
    发明公开
    SPECTROMETER AND METHOD OF SPECTROSCOPY 审中-公开
    光谱仪和光谱法

    公开(公告)号：EP2791635A1

    公开(公告)日：2014-10-22

    申请号：EP12806009.2

    申请日：2012-12-11

    Applicant: Thermo Fisher Scientific (Ecublens) Sarl

    Inventor： DEMARCO, Fabio ,  DORIER, Jean-Luc ,  HALASZ, Edmund

    IPC: G01J3/02 ,  G01J3/443 ,  G01J3/28 ,  G01J3/18

    CPC classification number: G01J3/443 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/024 ,  G01J3/0294 ,  G01J3/18 ,  G01J3/2803 ,  G01N21/67

    Abstract: A spark optical emission spectrometer comprising: a spark source for causing spark induced emission of light from a sample; a single entrance slit; a toroidal mirror for directing the light through the single entrance slit; a plurality of diffraction gratings for diffracting light that has been directed through the entrance slit by the mirror, whereby the plurality of diffraction gratings are simultaneously illuminated; and at least one array detector for detecting the diffracted light from the plurality of diffraction gratings, wherein the minor is for directing the light through the entrance slit such that light from different regions in the spark source is spatially separated in an image of the light at the gratings whereby a first diffraction grating is preferentially illuminated with light from a first region of the spark source and simultaneously a second diffraction grating is preferentially illuminated with light from a second region of the spark source.

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