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    Fluorescence detector geometry
    161.
    发明授权
    Fluorescence detector geometry 有权
    荧光检测器几何

    公开(公告)号：US07251026B2

    公开(公告)日：2007-07-31

    申请号：US10650213

    申请日：2003-08-28

    Applicant: Anthony C. Gilby

    Inventor： Anthony C. Gilby

    IPC: G01N1/10

    CPC classification number: G01N21/0303 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/18 ,  G01J3/4406 ,  G01N21/031 ,  G01N21/05 ,  G01N21/645 ,  G01N30/74 ,  G01N2021/0314 ,  G01N2021/0346 ,  G01N2021/6482

    Abstract: Excitation light of a selected wavelength from an excitation monochromator is directed along the long axis of a flow cell containing the sample to be analyzed, generating fluorescence. An emission monochromator is positioned at right angles to the plane of the excitation monochromator and receives the fluorescence from the flow cell utilizing optical components positioned such that the entrance slit of the emission monochromator is aligned with the long axis of the emission window. The intensity of the output from the flow cell is further maximized by positioning a retro-reflecting mirror at the end of the flow channel to effectively double the path-length of the excitation beam, and a reflecting surface on the side of the cell opposite the emission window to increase the collection efficiency and thereby increase the sensitivity of the detector.

    Abstract translation: 来自激发单色仪的所选波长的激发光沿着包含待分析样品的流动池的长轴被引导，产生荧光。 发射单色仪被定位成与激发单色仪的平面成直角，并且利用定位成使得发射单色仪的入射狭缝与发射窗的长轴对准的来自流动池的荧光接收。 通过在流动通道的端部定位回射反射镜以有效地使激励光束的路径长度倍增，并且与单元的相反侧的反射表面相反，来自流动池的输出的强度进一步最大化 发射窗口，以提高收集效率，从而提高检测器的灵敏度。

    Optical measurement device
    163.
    发明授权
    Optical measurement device 有权
    光学测量装置

    公开(公告)号：US07212285B2

    公开(公告)日：2007-05-01

    申请号：US10992014

    申请日：2004-11-19

    Applicant: Ryosuke Goto ,  Motoyoshi Sekiya

    Inventor： Ryosuke Goto ,  Motoyoshi Sekiya

    IPC: G01J3/28

    CPC classification number: G01J3/18 ,  G01J3/027 ,  G01J3/04 ,  G01J3/1895 ,  G01J3/453

    Abstract: An optical measurement device capable of improving optical spectrum measurement accuracy without the need to structurally decrease a slit width. A diffraction grating for dispersing measurement light into respective different wavelengths is rotated in a given direction to produce diffracted light of selected wavelengths. A focusing lens converges the diffracted light to produce a converged beam. A slit control section varies the slit width at a constant scan speed to open or close the slit, thereby varying the passing bandwidth for the converged beam. A light receiving/measuring section receives the light passed through the slit, obtains a level function indicative of the power level of the received light that varies with change in optical frequency, and differentiates the level function by the scan speed to reproduce the spectrum profile of the measurement light.

    Abstract translation: 一种能够提高光谱测量精度而不需要在结构上减小狭缝宽度的光学测量装置。 用于将测量光分散到各个不同波长的衍射光栅在给定方向上旋转以产生所选波长的衍射光。 聚焦透镜会聚衍射光以产生会聚光束。 狭缝控制部分以恒定的扫描速度改变狭缝宽度以打开或关闭狭缝，从而改变会聚束的通过带宽。 光接收/测量部分接收通过狭缝的光，获得指示随着光频率的变化而变化的接收光的功率电平的电平函数，并且将电平函数除以扫描速度，以再现频谱分布 测量灯。

    Optical Spectroscopy Utilizing Planar Spectral Filters
    164.
    发明申请
    Optical Spectroscopy Utilizing Planar Spectral Filters 有权
    光谱法利用平面光谱滤光片

    公开(公告)号：US20070091315A1

    公开(公告)日：2007-04-26

    申请号：US11532554

    申请日：2006-09-18

    Applicant: David Brady ,  Bob Guenther ,  Michael Gehm ,  Scott McCain

    Inventor： David Brady ,  Bob Guenther ,  Michael Gehm ,  Scott McCain

    IPC: G01J3/45 ,  G01B9/02

    CPC classification number: G01J3/26 ,  G01J3/0208 ,  G01J3/18 ,  G01J3/1838 ,  G01J3/2803

    Abstract: An optical spectrometer and/or a method of optical spectroscopy is described herein. One exemplary spectrometer includes a planar spectral filter, a dispersion system, and a detector array having at least two dimensions. The planar spectral filter filters incident light to generate a plurality of wavelength dependent spatial patterns. The dispersion system disperses the spatial patterns along at least one dimension in a wavelength dependent fashion onto the detector array. As a result, spatial patterns corresponding to different wavelengths are centered at different locations on the detector array. The dispersed spatial patterns superimpose at the detector array in an offset but overlapping relationship, creating an asymmetric image that facilitates the spectral analysis of a wide range of light sources, including diffuse or spectrally complex light sources.

    Abstract translation: 本文描述了光谱仪和/或光谱法的方法。 一个示例性光谱仪包括平面光谱滤光器，分散系统和具有至少两个维度的检测器阵列。 平面光谱滤波器对入射光进行滤光以产生多个依赖于波长的空间图案。 分散系统将沿着至少一个维度的空间图案以波长依赖的方式分散到检测器阵列上。 结果，对应于不同波长的空间图案集中在检测器阵列上的不同位置。 分散的空间图案以偏移但重叠的关系叠加在检测器阵列处，产生促进宽范围光源（包括漫射或光谱复合光源）的光谱分析的不对称图像。

    Optical detection device
    165.
    发明授权
    Optical detection device 有权
    光学检测装置

    公开(公告)号：US07196791B2

    公开(公告)日：2007-03-27

    申请号：US10432454

    申请日：2001-11-30

    Applicant: Ib-Rune Johansen ,  Odd Løvhaugen

    Inventor： Ib-Rune Johansen ,  Odd Løvhaugen

    IPC: G01J3/28

    CPC classification number: G01J3/36 ,  G01J3/18 ,  G02B5/1842

    Abstract: A diffractive optical element device for use in spectroscopy, where broadband light is emitted from a light source (31) towards the optical element (24) and from there is transmitted to at least one detector (29; 29′). The optical element has a plurality of diffractive dispersively focusing patterns, preferably partly integrated into each other, whose respective centers are two-dimensionally offset relative to each other in order to produce a plurality of spectra (25–28), where at least two are separate, but offset relative to each other and/or partly overlapping. In an alternative embodiment, the optical element consists of either one diffractive optical element (60) that is related to a wavelength and produces a spectrum, or at least two diffractive optical elements (60, 61) which are related to respective wavelengths and which produce at least two mutually partly overlapping spectra to give a composite spectrum. Means are provided on or in connection with the optical element in order to produce in said spectrum at least one indication of upper and/or lower wavelength value.

    Abstract translation: 一种用于光谱学的衍射光学元件装置，其中宽带光从光源（31）朝向光学元件（24）发射并从那里传输到至少一个检测器（29; 29'）。 光学元件具有多个衍射分散聚焦图案，优选地部分地彼此集成，其各自的中心相对于彼此二维偏移，以便产生多个光谱（25-28），其中至少两个 分离，但相对于彼此偏移和/或部分重叠。 在替代实施例中，光学元件由与波长相关并产生光谱的一个衍射光学元件（60）或与相应波长相关的至少两个衍射光学元件（60,61）组成，并且产生 至少两个相互部分重叠的光谱，以得到复合谱。 装置设置在光学元件上或与光学元件结合，以便在所述光谱中产生上和/或下波长值的至少一个指示。

    Optical system featuring chirped Bragg grating etalon for providing precise reference wavelengths
    167.
    发明授权
    Optical system featuring chirped Bragg grating etalon for providing precise reference wavelengths 有权
    具有啁啾Bragg光栅标准具的光学系统，用于提供精确的参考波长

    公开(公告)号：US07180601B1

    公开(公告)日：2007-02-20

    申请号：US09703823

    申请日：2000-11-01

    Applicant: Michael A. Davis ,  David R. Fournier

    Inventor： Michael A. Davis ,  David R. Fournier

    IPC: G01B9/02

    CPC classification number: G01J3/18 ,  G01J3/1895 ,  G01J2003/2866

    Abstract: An optical system has a broadband source and a chirped Bragg grating etalon. In operation, the broadband source provides a broadband optical signal. The chirped Bragg grating etalon responds to the broadband optical signal, for providing a chirped Bragg grating etalon optical signal having a precise set of the optical reference signals. The chirped Bragg grating etalon may include a pair of chirped Bragg gratings. The precise set of the optical reference signals is determined by the spacing of the chirped Bragg gratings of the chirped Bragg grating etalon. The precise set of the optical reference signals includes a series of peaks covering most of a source spectral width of the broad optical source signal with the power at the beginning and end of the spectrum passed unaffected by the chirped Bragg grating etalon due to the limited bandwidth thereof.

    Abstract translation: 光学系统具有宽带源和啁啾布拉格光栅标准具。 在操作中，宽带源提供宽带光信号。 啁啾的布拉格光栅标准具响应宽带光信号，用于提供具有精确的一组光参考信号的啁啾布拉格光栅标准具光信号。 啁啾的布拉格光栅标准具可以包括一对啁啾的布拉格光栅。 光学参考信号的精确集合由啁啾布拉格光栅标准具的啁啾布拉格光栅的间隔确定。 光学参考信号的精确集合包括覆盖宽光源信号的大部分源光谱宽度的一系列峰值，其中光谱开始和结束处的功率不受啁啾布拉格光栅标准具的影响，由于有限的带宽 其中。

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