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    Spectrally tunable solid-state light source
    131.
    发明申请
    Spectrally tunable solid-state light source 审中-公开
    光谱可调固态光源

    公开(公告)号：US20040188594A1

    公开(公告)日：2004-09-30

    申请号：US10836191

    申请日：2004-05-03

    Inventor： Steven W. Brown ,  B. Carol Johnson ,  George P. Eppeldauer

    IPC: G01J001/32 ,  G01J003/28

    CPC classification number: G01J3/10 ,  G01J3/0254 ,  G01J5/522 ,  G01J2001/0481 ,  G01J2003/2866

    Abstract: A radiometrically stable, spectrally tunable, solid-state source combines the radiometric outputs of individually controlled, narrow bandwidth, solid-state sources (e.g., LEDs) with different spectral distributions in an integrating sphere so as to approximate any desired spectral distribution. By using a sufficient number of independent solid-state source channels, the source can be tuned to approximate the spectral distribution of any desired source distribution. A stable reference spectroradiometer, integrated into the solid-state light source, measures the spectral radiance or irradiance and is used to adjust the output of the individual channels of the individually controlled sources.

    Abstract translation: 放射性稳定的，光谱可调谐的固态光源将单独控制的窄带宽的固态光源（例如，LED）的辐射度输出与积分球中的不同光谱分布组合，以便近似任何期望的光谱分布。 通过使用足够数量的独立固态源通道，源可被调谐以近似任何所需源分布的光谱分布。 集成到固态光源中的稳定的参考光谱仪测量光谱辐射或辐照度，并用于调节单独控制源的各个通道的输出。

    Manual and automatic probe calibration
    132.
    发明申请
    Manual and automatic probe calibration 有权
    手动和自动探头校准

    公开(公告)号：US20040147824A1

    公开(公告)日：2004-07-29

    申请号：US10757279

    申请日：2004-01-13

    Inventor： Mohamed Kheir Diab ,  Massi E. Kiani ,  Charles Robert Ragsdale ,  James M. Lepper JR.

    IPC: A61B005/00

    CPC classification number: A61B5/1495 ,  A61B5/0205 ,  A61B5/02427 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/6838 ,  A61B2562/08 ,  G01J3/02 ,  G01J3/0254 ,  G01J3/027 ,  G01J3/0275 ,  G01J3/0291 ,  G01J3/10 ,  G01J2003/2866 ,  G01N21/255 ,  G01N21/274 ,  G01N21/31 ,  G01N21/3151 ,  G01N21/39 ,  G01N2021/3144 ,  G01N2201/0627

    Abstract: The method and apparatus of the present invention provides a system wherein light-emitting diodes (LEDs) can be tuned within a given range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe, such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements. The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and apparatus for determining the operating wavelength of a light emitting element such as a light emitting diode.

    Abstract translation: 本发明的方法和装置提供了一种系统，其中可以通过选择它们的工作驱动电流来在给定范围内调节发光二极管（LED），以获得精确的波长。 本发明还提供了校准和利用LED探针的方式，使得驱动电流已知变化的波长偏移是已知量。 通常，利用LED的电流驱动变化的波长偏移原理，以便在使用LED传感器时更好地进行校准和增加灵活性，特别是在需要精确波长以获得准确测量的应用中。 本发明还提供一种系统，其中不需要知道过去需要精确波长的LED的精确波长。 最后，本发明提供了一种用于确定诸如发光二极管的发光元件的工作波长的方法和装置。

    Dual beam spectrophotometer modular sample system
    133.
    发明申请
    Dual beam spectrophotometer modular sample system 失效
    双光束分光光度计模块化样品系统

    公开(公告)号：US20040085534A1

    公开(公告)日：2004-05-06

    申请号：US10390817

    申请日：2003-03-17

    Inventor： Robert E. Parks ,  William P. Kuhn ,  Bryan Loucks ,  Michael R. Jacobson

    IPC: G01J003/42

    CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0254 ,  G01J3/08

    Abstract: A modular dual-beam source, sample compartment and beam-combining system are provided when used with a monochromator and detector to form a spectrophotometer consisting of: (a) a source module where two ellipsoidal mirrors each produce an image of the light source, and (b) a reflecting sample-compartment module, wherein each side has two plane-mirrors, of the four plane mirrors, three are reference and one is the sample, or (c) a transmission sample-compartment module, wherein each side has two plane-mirrors, and a sample is placed between one pair of plane-mirrors, and (d) a beam-combining module wherein the source images are imaged by a second pair of ellipsoidal mirrors on a reflective chopper that combines the images at a single location that is imaged, external to the module, by another mirror, each module being kinematically located with respect to each other so the system remains optically aligned as modules are interchanged.

    Abstract translation: 当与单色仪和检测器一起使用时，提供模块化双光束源，样品室和光束组合系统，以形成分光光度计，其由以下组成：（a）源模块，其中两个椭圆面镜各自产生光源的图像，以及 （b）反射样品室模块，其中每个侧面具有两个平面镜，四个平面镜中的三个是参考的，一个是样品，或者（c）透射样品室模块，其中每个侧面具有两个 平面镜，并且将样品放置在一对平面镜之间，和（d）光束组合模块，其中源图像由反射斩波器上的第二对椭球镜成像，其将单个图像组合在一起 通过另一个镜子在模块外部成像的位置，每个模块相对于彼此被运动地定位，使得当模块互换时，系统保持光学对准。

    Multifunctional fourier transform infrared spectrometer system
    134.
    发明授权
    Multifunctional fourier transform infrared spectrometer system 有权
    多功能傅立叶变换红外光谱仪系统

    公开(公告)号：US06667808B2

    公开(公告)日：2003-12-23

    申请号：US09788855

    申请日：2001-02-20

    Applicant: Todd R. Clermont ,  Francis Jerome Deck ,  Louie Delaware ,  James Ronald Hyatt ,  George Douglas Jones ,  Gabor John Kemeny ,  Steven Ralph Lowry ,  William Joseph McCarthy ,  John R. O'Keefe

    Inventor： Todd R. Clermont ,  Francis Jerome Deck ,  Louie Delaware ,  James Ronald Hyatt ,  George Douglas Jones ,  Gabor John Kemeny ,  Steven Ralph Lowry ,  William Joseph McCarthy ,  John R. O'Keefe

    IPC: G01J345

    CPC classification number: G01J3/02 ,  G01J3/0254 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/08 ,  G01J3/10 ,  G01J3/4535 ,  G01J2001/0481 ,  G01J2003/2866 ,  G01N21/3563 ,  G01N2021/3595

    Abstract: A multifunctional infrared spectrometer system has an interferometer which receives the infrared beam from a source and provides a modulated output beam on beam paths to multiple spatially separated infrared detectors. A multi-position mirror element mounted at a junction position receives the beam on a main beam path and directs it on branch beam paths to sample positions, with the beam then being directed on the branch beam path to one of the detectors. One of the branch beam paths may include a sample holder at the sample position which can index between a position at which a sample is analyzed, to a reference material position, to a pass-through position for calibration purposes. The multi-position mirror element may also be indexed to direct the beam on a branch path to a fiber optic cable which has a probe at the end of it which may be inserted in a sample fluid or powder to be analyzed, with the reflected light from the probe being directed back on an optical fiber cable to a detector at the spectrometer. The multi-position mirror element may be moved to a position at which the beam is directed on a beam path to and through an integrating sphere to a solid sample, with the reflected light from the sample being directed by the surfaces of the integrating sphere to a detector. A detector may be mounted to detect the light transmitted through the sample to obtain measurements of both reflected and transmitted infrared light at the sample.

    Abstract translation: 多功能红外光谱仪系统具有干涉仪，其接收来自源的红外光束，并将光束路径上的调制输出光束提供给多个空间分离的红外探测器。 安装在连接位置处的多位镜子元件在主光束路径上接收光束并将其引导到分支光束路径到采样位置，然后光束被引导到分支光束路径到其中一个检测器。 分支光束路径中的一个可以包括在采样位置处的样品保持器，其可以将样品被分析的位置与参考材料位置之间的位置转换成用于校准目的的通过位置。 多位置反射镜元件还可被索引以将光束引导到光纤电缆的分支路径上，该光纤电缆在其末端具有探针，该探针可以插入待分析的样品流体或粉末中，其中反射光 从探头引导回光纤光缆到光谱仪上的检测器。 多位置反射镜元件可以被移动到光束被引导到通过积分球并通过积分球的光束到固体样品的位置，其中来自样品的反射光被积分球的表面引导到 检测器 可以安装检测器以检测通过样品透射的光，以获得样品上的反射和透射的红外光的测量。

    Multifunctional fourier transform infrared spectrometer system
    136.
    发明申请
    Multifunctional fourier transform infrared spectrometer system 有权
    多功能傅立叶变换红外光谱仪系统

    公开(公告)号：US20010035957A1

    公开(公告)日：2001-11-01

    申请号：US09788855

    申请日：2001-02-20

    Inventor： Todd R. Clermont ,  Francis Jerome Deck ,  Louie Delaware ,  James Ronald Hyatt ,  George Douglas Jones ,  Gabor John Kemeny ,  Steven Ralph Lowry ,  William Joseph McCarthy ,  John R. O'Keefe

    IPC: G01B009/02

    CPC classification number: G01J3/02 ,  G01J3/0254 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/08 ,  G01J3/10 ,  G01J3/4535 ,  G01J2001/0481 ,  G01J2003/2866 ,  G01N21/3563 ,  G01N2021/3595

    Abstract: A multifunctional infrared spectrometer system has an interferometer which receives the infrared beam from a source and provides a modulated output beam on beam paths to multiple spatially separated infrared detectors. A multi-position mirror element mounted at a junction position receives the beam on a main beam path and directs it on branch beam paths to sample positions, with the beam then being directed on the branch beam path to one of the detectors. One of the branch beam paths may include a sample holder at the sample position which can index between a position at which a sample is analyzed, to a reference material position, to a pass-through position for calibration purposes. The multi-position mirror element may also be indexed to direct the beam on a branch path to a fiber optic cable which has a probe at the end of it which may be inserted in a sample fluid or powder to be analyzed, with the reflected light from the probe being directed back on an optical fiber cable to a detector at the spectrometer. The multi-position mirror element may be moved to a position at which the beam is directed on a beam path to and through an integrating sphere to a solid sample, with the reflected light from the sample being directed by the surfaces of the integrating sphere to a detector. A detector may be mounted to detect the light transmitted through the sample to obtain measurements of both reflected and transmitted infrared light at the sample.

    Abstract translation: 多功能红外光谱仪系统具有干涉仪，其接收来自源的红外光束，并将光束路径上的调制输出光束提供给多个空间分离的红外探测器。 安装在连接位置处的多位镜子元件在主光束路径上接收光束并将其引导到分支光束路径到采样位置，然后光束被引导到分支光束路径到其中一个检测器。 分支光束路径中的一个可以包括在采样位置处的样品保持器，其可以将样品被分析的位置与参考材料位置之间的位置转换成用于校准目的的通过位置。 多位置反射镜元件还可被索引以将光束引导到光纤电缆的分支路径上，该光纤电缆在其末端具有探针，该探针可以插入待分析的样品流体或粉末中，其中反射光 从探头引导回光纤光缆到光谱仪上的检测器。 多位置反射镜元件可以被移动到光束被引导到通过积分球并通过积分球的光束到固体样品的位置，其中来自样品的反射光被积分球的表面引导到 检测器 可以安装检测器以检测通过样品透射的光，以获得样品上的反射和透射的红外光的测量。

    MANUAL AND AUTOMATIC PROBE CALIBRATION
    137.
    发明申请
    MANUAL AND AUTOMATIC PROBE CALIBRATION 有权
    手动和自动探头校准

    公开(公告)号：US20010020123A1

    公开(公告)日：2001-09-06

    申请号：US09451151

    申请日：1999-11-30

    Inventor： MOHAMED KHEIR DIAB ,  ESMAIEL KIANI-AZARBAYJANY ,  CHARLES ROBERT RAGSDALE ,  JAMES M. LEPPER JR.

    IPC: A61B005/00

    CPC classification number: A61B5/1495 ,  A61B5/0205 ,  A61B5/02427 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/6838 ,  A61B2562/08 ,  G01J3/02 ,  G01J3/0254 ,  G01J3/027 ,  G01J3/0275 ,  G01J3/0291 ,  G01J3/10 ,  G01J2003/2866 ,  G01N21/255 ,  G01N21/274 ,  G01N21/31 ,  G01N21/3151 ,  G01N21/39 ,  G01N2021/3144 ,  G01N2201/0627

    Abstract: The method and apparatus of the present invention provides a system wherein light-emitting diodes (LEDs) can be tuned within a given range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe, such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements. The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and apparatus for determining the operating wavelength of a light emitting element such as a light emitting diode.

    Abstract translation: 本发明的方法和装置提供了一种系统，其中可以通过选择它们的工作驱动电流来在给定范围内调节发光二极管（LED），以获得精确的波长。 本发明还提供了校准和利用LED探针的方式，使得驱动电流已知变化的波长偏移是已知量。 通常，利用LED的电流驱动变化的波长偏移原理，以便在使用LED传感器时更好地进行校准和增加灵活性，特别是在需要精确波长以获得准确测量的应用中。 本发明还提供一种系统，其中不需要知道过去需要精确波长的LED的精确波长。 最后，本发明提供了一种用于确定诸如发光二极管的发光元件的工作波长的方法和装置。

    Dual detector laser beam power monitor
    138.
    发明授权
    Dual detector laser beam power monitor 失效
    双检测器激光束功率监视器

    公开(公告)号：US4842404A

    公开(公告)日：1989-06-27

    申请号：US144556

    申请日：1988-01-13

    Applicant: C. Richard Duda

    Inventor： C. Richard Duda

    IPC: G01J1/42 ,  G01J4/00

    CPC classification number: G01J1/4257 ,  G01J1/04 ,  G01J1/0429 ,  G01J1/4228 ,  G01J3/0254

    Abstract: An apparatus for monitoring the light energy power level of a beam of light, includes beamsplitters on the axis of the light beam for directing portions of the light beam in first and second paths respectively orthogonal to the axis while transmitting the remaining portion of the light beam therethrough. First and second photodetectors having similar spectral responsivity intercept the first and second light beam portions respectively, and detect and signal the light energy power level of the respective first and second light beam portions. Analysis circuitry coupled to the first and second photodetectors and responsive to the output signals therefrom to calculate the total light energy power level of the light beam. The apparatus resolves linearly polarized light into two orthogonal components while permitting most of the light to exit. This exit beam can be analyzed in terms of the incident beam or monitored for measurement or control purposes.

    Abstract translation: 一种用于监测光束的光能功率水平的装置，包括在光束轴上的分束器，用于将光束的部分引导到分别垂直于轴线的第一和第二路径中，同时透射光束的剩余部分 通过。 具有相似光谱响应性的第一和第二光电探测器分别截取第一和第二光束部分，并且检测并发出相应的第一和第二光束部分的光能功率电平。 分析电路耦合到第一和第二光电检测器并响应于其输出信号来计算光束的总光能功率水平。 该装置将线性偏振光分解成两个正交分量，同时允许大部分光离开。 该出射光束可以根据入射光束进行分析，或者进行监测以用于测量或控制目的。

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