Spectrophotometer
    221.
    发明授权
    Spectrophotometer 有权
    分光光度计

    公开(公告)号:US07791722B2

    公开(公告)日:2010-09-07

    申请号:US12212016

    申请日:2008-09-17

    Inventor: Hiroyuki Minato

    CPC classification number: G01J3/28 G01J3/02 G01J3/027

    Abstract: A spectrophotometer is provided capable of reducing the influence of the vibration as much as possible when a wavelength dispersion element is rotationally driven and capable of increasing the analysis accuracy. When a fluorescence signal is obtained from the fluorescence detector, the central control unit A/D converts the fluorescence signal at sampling intervals of T1 for vibration convergence determination, and provides the result data to the data processor (S1). At the timing of performing the vibration convergence determination (S2), the data processor performs a predetermined signal processing to the digital signals obtained (S3), and determines whether all the data that have been obtained within a given period of time from the latest data are equal to or smaller than a specified value (S4). If all the data are equal to or smaller than the specified value, it is determined that the diffraction grating's vibration is converged, and the vibration convergence determination operation is terminated. After that, the central control unit changes the A/D conversion sampling interval to the interval T2 for obtaining the analysis data, and performs a spectrofluorometric measurement.

    Abstract translation: 提供一种分光光度计,其能够在波长分散元件旋转驱动时尽可能地减小振动的影响,并且能够提高分析精度。 当从荧光检测器获得荧光信号时,中央控制单元A / D以用于振动收敛确定的采样间隔T1转换荧光信号,并将结果数据提供给数据处理器(S1)。 在执行振动收敛判定(S2)的定时,数据处理器对获得的数字信号进行预定的信号处理(S3),并且确定在最近的数据中在给定时间段内获得的所有数据 等于或小于规定值(S4)。 如果所有数据均等于或小于指定值,则确定衍射光栅的振动被收敛,并且终止振动收敛确定操作。 之后,中央控制单元将A / D转换采样间隔改变为间隔T2以获得分析数据,并执行分光荧光测量。

    THREE MIRROR ANASTIGMAT SPECTROGRAPH
    224.
    发明申请
    THREE MIRROR ANASTIGMAT SPECTROGRAPH 有权
    三个镜子评估光谱

    公开(公告)号:US20090091753A1

    公开(公告)日:2009-04-09

    申请号:US12246232

    申请日:2008-10-06

    Abstract: A spectrograph including a primary mirror, a secondary mirror, and a tertiary mirror forming a TMA having a common vertex axis. The spectrograph also may include a collimating mirror, a diffraction grating, and a dispersive prism. The collimating mirror and an entrance aperture form an interchangeable module. Radiation received through the entrance aperture is reflected in a collimated pattern towards an aperture stop. The diffraction grating, located between the collimating mirror and prism, diffracts radiation passed through the aperture stop into multiple beams directed onto the prism. A flat mirror, located to one side of the vertex axis. receives and reflects the multiple beams exiting the prism onto the primary mirror, where they are reflected onto the secondary mirror. The secondary mirror reflects the beams to the tertiary mirror where they are reflected onto an image plane located on the other side of the vertex axis.

    Abstract translation: 包括主镜,次镜和形成具有共同顶点轴的TMA的第三镜的光谱仪。 光谱仪还可以包括准直镜,衍射光栅和分散棱镜。 准直镜和入口孔形成可互换的模块。 通过入射孔收到的辐射以朝向孔径光阑的准直图案反射。 位于准直镜和棱镜之间的衍射光栅将通过孔径光阑的辐射衍射成多个指向棱镜的光束。 平面镜,位于顶点轴的一侧。 接收和反射离开棱镜的多个光束到主镜上,在那里它们被反射到次镜上。 次级反射镜将光束反射到第三级反射镜,它们被反射到位于顶点轴线另一侧的图像平面上。

    Optical channel monitor
    225.
    发明授权
    Optical channel monitor 有权
    光通道监视器

    公开(公告)号:US07463828B2

    公开(公告)日:2008-12-09

    申请号:US10159370

    申请日:2002-05-31

    Abstract: An optical channel monitor is provided that sequentially or selectively filters an optical channel(s) 11 of light from a (WDM) optical input signal 12 and senses predetermined parameters of the each filtered optical signal (e.g., channel power, channel presence, signal-noise-ratio). The OCM 10 is a free-space optical device that includes a collimator assembly 15, a diffraction grating 20 and a mirror 22. A launch pigtail emits into free space the input signal through the collimator assembly 15 and onto the diffraction grating 20, which separates spatially each of the optical channels 11 of the collimated light, and reflects the separated channels of light onto the mirror 22. A λ/4 plate 26 is disposed between the mirror 22 and the diffraction grating 20. The mirror reflects the separated light back through the λ/4 plate 26 to the diffraction grating 20, which reflects the channels of light back through the collimating lens 18. The lens 18 focuses each separated channel of light (λ1-λN) at a different focal point in space. One of the optical channels 11 is focused onto a receive pigtail 28, which then propagates to a photodetector 30. A pivoting mechanism 34 pivots the diffraction grating 20 or mirror 22 about a pivot point 36 to sequentially or selectively focus each optical channel 11 to the receive pigtail 28. A position sensor 42 detects the displacement of the diffraction grating 24 or mirror.

    Abstract translation: 提供了一种光通道监视器,其顺序地或选择性地对来自(WDM)光输入信号12的光的通道11进行滤波,并且感测每个滤波的光信号的预定参数(例如,信道功率,信道存在, 噪声比)。 OCM 10是包括准直器组件15,衍射光栅20和反射镜22的自由空间光学装置。发射尾纤通过准直器组件15和衍射光栅20将衍射光栅20发射到自由空间中,输入信号分离 准直光的每个光通道11,并将分离的光反射到反射镜22上.λ/ 4板26设置在反射镜22和衍射光栅20之间。反射镜将分离的光反射回 λ/ 4板26到衍射光栅20,其反射通过准直透镜18的光通道。透镜18将每个分离的光(λ1-λN)通道在空间中的不同焦点处聚焦。 光通道11中的一个被聚焦到接收引线28上,接收引线28然后传播到光电检测器30.枢转机构34围绕枢转点36枢转衍射光栅20或反射镜22,以顺序地或选择性地将每个光通道11聚焦到 接收尾纤28.位置传感器42检测衍射光栅24或反射镜的位移。

    Encoder spectrograph and modulator for use therewith
    226.
    发明授权
    Encoder spectrograph and modulator for use therewith 失效
    编码器光谱仪和调制器

    公开(公告)号:US07423748B2

    公开(公告)日:2008-09-09

    申请号:US11833886

    申请日:2007-08-03

    Inventor: Thomas W. Hagler

    Abstract: An encoder spectrograph is used to analyze radiation from one or more samples in various configurations. The radiation is analyzed by spatially modulating the radiation after it has been dispersed by wavelength or imaged along a line. Dual encoder spectrographs may be used to encode radiation using a single modulator. An encoder spectrograph includes a modulator with radiation filters having non-equal widths and centered at non-equal intervals along the encoding axis of the modulator.

    Abstract translation: 编码器光谱仪用于分析来自一种或多种不同配置样品的辐射。 通过在辐射被波长分散或沿着一条线成像后,通过空间调制辐射来分析辐射。 双编码器光谱仪可用于使用单个调制器对辐射进行编码。 编码器光谱仪包括具有不等宽度的辐射滤光器的调制器,并且沿着调制器的编码轴以不等间隔居中。

    Multi-channel dual phase lock-in optical spectrometer
    227.
    发明授权
    Multi-channel dual phase lock-in optical spectrometer 失效
    多通道双相锁相光谱仪

    公开(公告)号:US07336357B2

    公开(公告)日:2008-02-26

    申请号:US11202211

    申请日:2005-08-12

    Applicant: Jeremy Levy

    Inventor: Jeremy Levy

    Abstract: The development of a multiple-channel dual phase lock-in optical spectrometer (LIOS) is presented, which enables parallel phase-sensitive detection at the output of an optical spectrometer. The light intensity from a spectrally broad source is modulated at the reference frequency, and focused into a high-resolution imaging spectrometer. The height at which the light enters the spectrometer is controlled by an acousto-optic deflector, and the height information is preserved at the output focal plane. A two-dimensional InGaAs focal plane array collects light that has been dispersed in wavelength along the horizontal direction, and in time along the vertical direction. The data is demodulated using a high performance computer-based digital signal processor. This parallel approach greatly enhances (by more than 100×) the speed at which spectrally resolved lock-in data can be acquired.

    Abstract translation: 提出了一种多通道双相锁相光谱仪(LIOS)的开发,可在光谱仪的输出端进行并行相敏检测。 来自光谱宽源的光强度以参考频率调制,并且聚焦成高分辨率成像光谱仪。 光进入光谱仪的高度由声光偏转器控制,高度信息保留在输出焦平面。 二维InGaAs焦平面阵列沿着水平方向并沿着垂直方向在时间上收集沿波长分散的光。 使用基于高性能计算机的数字信号处理器对数据进行解调。 这种并行方法极大地提高了可以获取光谱解析的锁定数据的速度(超过100倍)。

    Method and apparatus for detecting embedded rebar within an interaction region of a structure irradiated with laser light
    228.
    发明授权
    Method and apparatus for detecting embedded rebar within an interaction region of a structure irradiated with laser light 失效
    在用激光照射的结构的相互作用区域内检测嵌入钢筋的方法和装置

    公开(公告)号:US07289206B2

    公开(公告)日:2007-10-30

    申请号:US10803267

    申请日:2004-03-18

    Abstract: A detection system is used during irradiation of an interaction region of a structure including embedded material with laser light. The detection system includes a collimating lens positioned to receive light emitted from the interaction region. The detection system further includes an optical fiber optically coupled to the collimating lens and a spectrometer optically coupled to the optical fiber. The spectrometer is adapted for analysis of the light for indications of the embedded material within the interaction region. The spectrometer includes an input slit adapted to receive light from the optical fiber. The input slit has a width selected to provide sufficient light transmittance and sufficient resolution. The spectrometer further includes an optical grating adapted to receive light from the input slit and to separate the light into a spectrum of wavelengths. The spectrometer further includes a collection lens adapted to receive a selected range of wavelengths of the separated light from the optical grating. The spectrometer further includes a light sensor adapted to receive the selected range of wavelengths and to generate a signal corresponding to an intensity of the received light.

    Abstract translation: 在包括具有激光的嵌入材料的结构的相互作用区域的照射期间使用检测系统。 检测系统包括准直透镜,定位成接收从相互作用区域发出的光。 检测系统还包括光学耦合到准直透镜的光纤和光学耦合到光纤的光谱仪。 光谱仪适用于分析相互作用区域内的嵌入材料的光的光。 光谱仪包括适于接收来自光纤的光的输入狭缝。 输入狭缝具有选择的宽度以提供足够的透光率和足够的分辨率。 光谱仪还包括适于接收来自输入狭缝的光并将光分离成波长范围的光栅。 光谱仪还包括适于接收来自光栅的分离光的选定波长范围的收集透镜。 光谱仪还包括适于接收所选择的波长范围并且产生对应于所接收的光的强度的信号的光传感器。

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