Time-Resolved Spectroscopic Measurement Apparatus
    481.
    发明申请
    Time-Resolved Spectroscopic Measurement Apparatus 有权
    时间分辨光谱测量仪器

    公开(公告)号:US20080074664A1

    公开(公告)日:2008-03-27

    申请号:US11662680

    申请日:2005-09-16

    CPC classification number: G01J3/2889 G01J3/04 G01J3/22

    Abstract: Light dispersing device comprising a slit element having a slit for exposure to electromagnetic radiation, wherein the slit element is configured and disposed for turning the slit between at least two positions. The light dispersing device is used together with a streak camera, whereby in a first position the slit is adjusted to influence the temporal resolution of the streak camera and in a second postion the slit is adjusted to influence the spectral resolution of the streak camera.

    Abstract translation: 光分配装置包括具有用于暴露于电磁辐射的狭缝的狭缝元件,其中,所述狭缝元件构造和设置用于在至少两个位置之间转动狭缝。 光分散装置与条纹相机一起使用,由此在第一位置调整狭缝以影响条纹相机的时间分辨率,并且在第二位置中,调节狭缝以影响条纹相机的光谱分辨率。

    Sensor and methods for measuring select components in sheetmaking systems
    482.
    发明授权
    Sensor and methods for measuring select components in sheetmaking systems 有权
    用于测量制片系统中选择组件的传感器和方法

    公开(公告)号:US07321425B2

    公开(公告)日:2008-01-22

    申请号:US11018167

    申请日:2004-12-20

    Applicant: Frank M. Haran

    Inventor: Frank M. Haran

    Abstract: A sensor for measuring at least selected component in a composition can include: (a) a broadband light source, (b) an acousto-optic tunable filter (AOTF), (c) means for generating a beam of light from the light source and directing the beam of light at the AOTF wherein the AOTF is tuned to pass detection light having a desired wavelength range to detect the presence of the at least one component in the composition, (d) means for directing the detection light of known wavelength to the composition, (e) detection means for receiving light that emerges from the composition, and (f) a control signal generator configured to provide the AOTF with at least one desired wavelength range that is characteristic of the least one component in the composition. As an example, the sensor can be used to measure the thickness of optically transparent films.

    Abstract translation: 用于测量组合物中的至少所选组分的传感器可以包括:(a)宽带光源,(b)声光可调滤波器(AOTF),(c)用于产生来自光源的光束的装置, 在AOTF处引导光束,其中AOTF被调谐以通过具有期望波长范围的检测光,以检测组合物中至少一个成分的存在,(d)用于将已知波长的检测光引导到 组成,(e)用于接收从组合物出射的光的检测装置,以及(f)配置为向AOTF提供组合物中至少一个组分特征的至少一个所需波长范围的控制信号发生器。 作为示例,传感器可用于测量光学透明膜的厚度。

    MULTI-CHANNEL DUAL PHASE LOCK-IN OPTICAL SPECTROMETER
    483.
    发明申请
    MULTI-CHANNEL DUAL PHASE LOCK-IN OPTICAL SPECTROMETER 失效
    多通道双相锁定光学光谱仪

    公开(公告)号:US20070252988A1

    公开(公告)日:2007-11-01

    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)。

    Scanning spectrum analyzer
    484.
    发明授权
    Scanning spectrum analyzer 有权
    扫描频谱分析仪

    公开(公告)号:US07251028B2

    公开(公告)日:2007-07-31

    申请号:US11068295

    申请日:2005-02-28

    CPC classification number: G01J3/06 G01J3/02 G01J3/0208 G01J3/12 G01N21/4795

    Abstract: A system for spectral analysis of a multi-wavelength signal is disclosed. The illustrative embodiment of the present invention, like the prior art, uses a grating or prism to disperse the spectral components of a multi-wavelength signal, and then uses a reciprocating or rotating mirror to direct the spectral components, one at a time, into a photodetector. The illustrative embodiment uses a telescope between the grating and the mirror to improve the spectral resolution of the system.

    Abstract translation: 公开了一种用于多波长信号的频谱分析的系统。 与现有技术相同,本发明的说明性实施例使用光栅或棱镜来分散多波长信号的光谱分量,然后使用往复或旋转镜将光谱分量一次一个地引导到 光检测器。 说明性实施例使用光栅和反射镜之间的望远镜来改善系统的光谱分辨率。

    Method for spectral analysis, and scanning microscope
    485.
    发明授权
    Method for spectral analysis, and scanning microscope 有权
    光谱分析方法和扫描显微镜

    公开(公告)号:US06977724B2

    公开(公告)日:2005-12-20

    申请号:US10393607

    申请日:2003-03-21

    Applicant: Werner Knebel

    Inventor: Werner Knebel

    Abstract: A method for spectral analysis of the light proceeding from a specimen using a multi-band detector comprises the steps of defining an overall spectral region; from the overall spectral region, defining a first spectral subregion and defining at least a second spectral subregion; simultaneously detecting the light proceeding from the specimen in the first and the second spectral subregion, and generating detection values; displacing the first spectral subregion and displacing the second spectral subregion within the overall spectral region; and repeating steps c) and d) until the light has been detected over the entire overall spectral region.

    Abstract translation: 用于使用多频带检测器从样本进行光的光谱分析的方法包括以下步骤:定义整个光谱区域; 从整个光谱区域,定义第一光谱子区域并限定至少第二光谱子区域; 同时检测从第一和第二频谱子区域中的样本进行的光,并产生检测值; 移位所述第一频谱子区域并且移位所述整个频谱区域内的所述第二频谱子区域; 并重复步骤c)和d),直到在整个光谱区域上检测到光。

    Wavelength characteristic measuring device and method using light having wavelength thereof continuously changed
    488.
    发明授权
    Wavelength characteristic measuring device and method using light having wavelength thereof continuously changed 失效
    波长特性测量装置和使用其波长的光连续变化的方法

    公开(公告)号:US06870618B2

    公开(公告)日:2005-03-22

    申请号:US10311121

    申请日:2002-04-26

    CPC classification number: G01M11/00 G01J1/18 G01J3/027 G01J3/06 G01J3/12

    Abstract: A wavelength variable light source emits a light whose wavelengths continuously change from a preset start wavelength up to a stop wavelength to a measuring object. A timing information output section generates timing information showing emission timings of lights emitted from the wavelength variable light source and having start and stop wavelengths and a plurality of wavelengths obtained by delimiting the wavelengths between the start and stop wavelengths in predetermined steps. A light receiving section receives the light output from the measuring object and outputs a signal showing a measured value of a received light. A plurality of amplifiers receive the signal output from the light receiving section and amplify the signal at each predetermined amplification factor. A signal selecting section selects one signal kept in a predetermined measuring range of signals amplified by the plurality of amplifiers at the each predetermined amplification factor and outputs the one signal as a measured value of a light of a wavelength decided in accordance with corresponding timing information in the information output from the timing information output section.

    Abstract translation: 波长可变光源发射其波长从预设开始波长连续地变化到停止波长的光到测量对象。 定时信息输出部分产生定时信息,其显示从波长可变光源发射的光的发射定时,并且具有通过以预定步骤限定起始和停止波长之间的波长而获得的起始和停止波长和多个波长。 光接收部接收从测量对象输出的光,并输出表示接收光的测量值的信号。 多个放大器接收从光接收部输出的信号,并以每个预定的放大系数放大信号。 信号选择部以每个规定的放大率选择保持在由多个放大器放大的信号的预定测量范围内的一个信号,并输出该一个信号作为根据相应定时信息确定的波长的光的测量值 从定时信息输出部输出的信息。

    Spectroscopic systems and methods
    489.
    发明申请
    Spectroscopic systems and methods 有权
    光谱系统和方法

    公开(公告)号:US20050012925A1

    公开(公告)日:2005-01-20

    申请号:US10840686

    申请日:2004-05-06

    Abstract: The present invention relates to spectroscopic methods and systems for collecting electromagnetic radiation from an object using a continuously-spinning wavelength-selecting (CSWS) device, e.g., an interference filter(s)?? or grating. One embodiment of the invention provides a spectroscopic system for collecting electromagnetic radiation from a target. The spectroscopic system has at least one beam of electromagnetic radiation that interacts with the target. The system includes a continuously spinning wavelength-selecting (CSWS) device, e.g., a continuously spinning interference filter/grating driven by a DC motor, in the path of the at least one beam. The device filters the radiation with regard to wavelength to produce filtered radiation. The system further includes at least one detector in the path of the at least one beam for detecting the filtered radiation.

    Abstract translation: 本发明涉及使用连续纺丝波长选择(CSWS)装置(例如干涉滤光片)收集来自物体的电磁辐射的光谱方法和系统。 或光栅。 本发明的一个实施例提供了一种用于从目标收集电磁辐射的光谱系统。 光谱系统具有与靶相互作用的至少一束电磁辐射。 该系统包括连续旋转波长选择(CSWS)装置,例如由直流电动机驱动的连续旋转干涉滤波器/光栅,在至少一个光束的路径中。 该装置相对于波长对辐射进行滤波以产生滤波的辐射。 该系统还包括至少一个光束的路径中的至少一个检测器,用于检测经过滤的辐射。

    Plane diffraction grating based on surface normal rotation and its application to an optical system
    490.
    发明授权
    Plane diffraction grating based on surface normal rotation and its application to an optical system 失效
    基于表面正转的平面衍射光栅及其在光学系统中的应用

    公开(公告)号:US06844973B1

    公开(公告)日:2005-01-18

    申请号:US09642883

    申请日:2000-08-22

    CPC classification number: G01J3/1804 G01J3/06 G01J3/189 G02B5/1828

    Abstract: A plane diffraction grating based on surface normal rotation according to the present invention is designed so that the profile of the grooves at a radial area is determined depending on a rotational position of the area about a rotational center defined as a foot of the rotational axis on the surface of the plane diffraction grating. An optical system such as a spectrometer or a monochromator according to the present invention uses such a plane diffraction grating, and requires a special arrangement. The optical system includes: a plane diffraction grating as described above; a mechanism for rotating the plane diffraction grating about the rotational axis; an incidence optical system for casting a converging beam of light on a point of the surface of the plane diffraction grating, where the point is set apart from the rotational center. As the diffraction grating is rotated about the rotational center, the point on which the incident converging beam of light is cast rotates about the rotation center, where the diffracting condition is optimized anywhere around the rotational center or for any scanning wavelength. The surface of the plane diffraction grating can be covered with a multiple-layer coating to improve diffraction efficiency. When such a multiple-layer is coated, the unit thickness of the multiple-layer coating at an area is also determined depending on the rotational position of the area about the rotational center.

    Abstract translation: 根据本发明的基于表面正转的平面衍射光栅被设计成使得在径向区域处的凹槽的轮廓根据围绕旋转中心的旋转中心的旋转中心的旋转位置来确定 平面衍射光栅的表面。 根据本发明的诸如光谱仪或单色仪的光学系统使用这种平面衍射光栅,并且需要特殊的布置。 光学系统包括:如上所述的平面衍射光栅; 用于使平面衍射光栅围绕旋转轴线旋转的机构; 用于在平面衍射光栅的表面的点上投射会聚光束的入射光学系统,其中点与旋转中心分开。 当衍射光栅围绕旋转中心旋转时,入射的会聚光束投射的点围绕旋转中心旋转,其中衍射条件在旋转中心附近或任何扫描波长的任何地方被优化。 平面衍射光栅的表面可以用多层涂层覆盖,以提高衍射效率。 当这种多层被涂覆时,一个区域的多层涂层的单位厚度也取决于围绕旋转中心的区域的旋转位置来确定。

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