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    OPTICAL SHUTTER FOR SPECTROSCOPY INSTRUMENT
    22.
    发明申请
    OPTICAL SHUTTER FOR SPECTROSCOPY INSTRUMENT 有权
    光学仪器光学快门

    公开(公告)号：US20040085535A1

    公开(公告)日：2004-05-06

    申请号：US09958448

    申请日：2001-10-05

    Inventor： Michael R. Hammer ,  Martin K. Masters ,  Stewart R. Campbell ,  Peter G. Layton

    IPC: G01J003/28

    CPC classification number: G01J5/62 ,  G01J3/02 ,  G01J3/0213 ,  G01J3/0227 ,  G01J3/0229 ,  G01J3/0232 ,  G01J3/1809 ,  G01J3/2803 ,  G01J2003/1828 ,  G01N21/27 ,  G01N21/31

    Abstract: Spectroscopy apparatus for spectrochemical analysis of a sample having an excitation source (60) for providing spectral light (62) of the sample for analysis. The spectral light (62) is analysed via an optical system (66-66-68) that includes a polychromator (70, 74-80) and solid state multielement array detector (82). The elements (i.e. pixels) of the detector (82) are serially read by means (84) to provide light intensity measurements as a function of wavelength. A problem is that the elements (pixels) of the detector (82) continue to accumulate charge during the serial read-out. This is avoided by providing an optical shutter (72) for blocking the spectral light (62) whilst elements (pixels) of the detector (82) are being serially read. Shutter (72) has a piezoelectric actuator which is preferably a bimorph mounted as a cantilever. It is preferably located adjacent to the entrance aperture (70) of the polychromator. Bimorph structures for the actuator and drive and protective circuit arrangements are also disclosed.

    Abstract translation: 具有用于提供用于分析的样品的光谱光（62）的激发源（60）的样品的光谱分析用光谱仪。 通过包括多色分光器（70,74-80）和固态多元件阵列检测器（82）的光学系统（66-66-68）分析光谱光（62）。 通过装置（84）串行读取检测器（82）的元件（即，像素），以提供作为波长的函数的光强度测量。 问题在于，在串行读出期间，检测器（82）的元件（像素）继续积累电荷。 这是通过提供用于阻挡分光光（62）的光学快门（72）而避免的，同时检测器（82）的元件（像素）被串行读取。 快门（72）具有压电致动器，其优选地是作为悬臂安装的双压电晶片。 它优选地位于多色调色板的入口孔（70）附近。 还公开了用于致动器和驱动器和保护电路装置的双压电晶片结构。

    Miniaturised spectrometer
    23.
    发明申请
    Miniaturised spectrometer 失效
    小型光谱仪

    公开(公告)号：US20040017567A1

    公开(公告)日：2004-01-29

    申请号：US10169032

    申请日：2003-03-11

    Inventor： Martin Loicht ,  Andreas Weingartner ,  Wendelin Weingartner ,  Nikolaus Fleischmann ,  Thomas Zipper ,  Bernhard Weingartner

    IPC: G01J003/02 ,  G01J003/42

    CPC classification number: G01J3/42 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0227 ,  G01J3/0229 ,  G01J3/0232 ,  G01J3/0256 ,  G01N21/8507 ,  G01N2021/3509

    Abstract: The invention concerns a miniaturized spectrometer, especially in the form of a probe, for determination of the ingredients of a gaseous or liquid fluid with a light source (3) and a spectrometer (2), at least one measurement beam and at least one reference beam. The invention is characterized by the fact that the light of the light source (3) is optionally fanned out and bundled by means of at least one optical lens (8) to an essentially parallel beam, that at least one measurement beam is passed through a light transparent window from the probe into the fluid being investigated and through an additional light transparent window back into the probe, that at least one reference beam is guided in the probe interior, that a collecting optics (14), consisting of at least one lens, diverts the beams to the impingement point of the light guide (5) or the inlet of the spectrometer (2), and that a beam selector (7) is provided in the region of the collecting optics (14) that passes through one of the partial beams and interrupts all the others.

    Abstract translation: 本发明涉及一种小型化的光谱仪，特别是探针的形式，用于利用光源（3）和光谱仪（2）测定气体或液体流体的成分，至少一个测量光束和至少一个参考 光束。 本发明的特征在于，光源（3）的光可选地被至少一个光学透镜（8）扇出并捆扎成基本平行的光束，使得至少一个测量光束通过 透明窗口，从探针进入被研究的流体，并通过另外的光透明窗口回到探针中，至少一个参考光束在探测器内部被引导，聚集光学器件（14）由至少一个透镜 将光束转移到光导（5）的入射点或光谱仪（2）的入射点，并且在收集光学器件（14）的区域中设置光束选择器（7），该选择器通过 部分光束和所有其他的中断。

    Apparatus and method for measuring optical characteristics of an object
    25.
    发明申请
    Apparatus and method for measuring optical characteristics of an object 失效
    用于测量物体的光学特性的装置和方法

    公开(公告)号：US20030016359A1

    公开(公告)日：2003-01-23

    申请号：US10103514

    申请日：2002-03-21

    Inventor： Wayne D. Jung ,  Russell W. Jung ,  Alan R. Loudermink

    IPC: G01J003/50

    CPC classification number: G01J3/51 ,  G01J1/0407 ,  G01J1/0433 ,  G01J1/0437 ,  G01J1/0474 ,  G01J1/06 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/0227 ,  G01J3/0229 ,  G01J3/0251 ,  G01J3/0259 ,  G01J3/0264 ,  G01J3/0278 ,  G01J3/0283 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/2803 ,  G01J3/508 ,  G01J3/513 ,  G01J2001/0481

    Abstract: Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object/tooth being measured. Under processor control, the optical characteristics measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, gloss and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention. A method of producing dental prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a patient data base. Such methods and implements may be desirably utilized for purposes of detecting and preventing counterfeiting or the like. Low cost and small form factor spectrometers, and methods for manufacturing the same, also are disclosed.

    Abstract translation: 公开了用于确定牙齿的颜色或其他光学特性的光学特性测量系统和方法。 周边接收机光纤优选地与源光纤间隔开，并且从被测量的物体/齿的表面接收光。 来自周边光纤的光通过各种滤光片。 该系统利用周边接收器光纤来确定关于探头相对于被测量物体/齿的高度和角度的信息。 在处理器控制下，可以以预定的高度和角度进行光学特性测量。 公开了各种颜色光谱光度计布置。 也可以获得半透明度，荧光，光泽度和/或表面纹理数据。 可以提供音频反馈以指导操作者使用该系统。 探头可能具有可移除或屏蔽的尖端，以防止污染。 还公开了一种基于测量数据生产牙科假体的方法。 测量的数据也可以存储和/或组织为患者数据库的一部分。 为了检测和防止伪造等目的，可以期望地使用这些方法和装置。 低成本和小尺寸光谱仪及其制造方法也被公开。

    Optical probes and methods for spectral analysis
    26.
    发明申请
    Optical probes and methods for spectral analysis 有权
    光学探针和光谱分析方法

    公开(公告)号：US20020039186A1

    公开(公告)日：2002-04-04

    申请号：US09803131

    申请日：2001-03-09

    Inventor： Charles W. Von Rosenberg

    IPC: G01N021/01

    CPC classification number: G01J3/02 ,  G01J3/0213 ,  G01J3/0218 ,  G01J3/0227 ,  G01J3/0232 ,  G01J3/0256 ,  G01J3/0262 ,  G01J3/28 ,  G01J3/502 ,  G01J2003/2866 ,  G01N21/3563 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/8507 ,  G01N33/10

    Abstract: The present invention relates to spectral analysis systems and methods for determining physical and chemical properties of a sample by measuring the optical characteristics of light emitted from the sample. In one embodiment, a probe head for use with a spectrometer includes a reflector for illuminating a sample volume disposed circumferentially about the light source of the probe head. In another embodiment, a probe head includes an optical blocking element for forcing the optical path between the light source and an optical pick-up optically connected to the spectrometer into the sample. The probe head also includes a reference shutter for selectively blocking light emitted from the sample from reaching the optical pick-up to facilitate calibration of the spectrometer.

    Abstract translation: 本发明涉及通过测量从样品发射的光的光学特性来确定样品的物理和化学性质的光谱分析系统和方法。 在一个实施例中，用于光谱仪的探针头包括用于照亮围绕探头的光源周向设置的样品体积的反射器。 在另一个实施例中，探头包括用于迫使光源和光学连接到光谱仪的光学拾取器之间的光路进入样品的光学阻挡元件。 探头还包括用于选择性地阻挡从样品发射的光到达光学拾波器以便于校准光谱仪的参考快门。

    Low aberration diffraction grating system
    27.
    发明授权
    Low aberration diffraction grating system 失效
    低像差衍射光栅系统

    公开(公告)号：US5371586A

    公开(公告)日：1994-12-06

    申请号：US960091

    申请日：1992-10-09

    Applicant: Chiu Chau

    Inventor： Chiu Chau

    IPC: G01J3/18 ,  G01N21/65 ,  G01N21/64

    CPC classification number: G01J3/02 ,  G01J3/0227 ,  G01J3/18 ,  G01N2021/6471 ,  G01N2021/6473 ,  G01N21/65

    Abstract: A light analysis system is disclosed and comprises a source of substantially collimated light to be analyzed. The source comprises a sample excited by a collimated laser light source, and further comprises a holographic notch filter having the characteristic of reflecting light at the excitation wavelenghth at which the source is excited. An aberration corrected concave focusing diffraction grating receives the collimated light and focuses it at a point corresponding to its wavelength. A detector detects light at a desired wavelength focused by the diffraction grating. The holographic notch filter is positioned to filter the source of substantially collimated light to be filtered and the holographic notch filter is oriented substantially at an angle with respect to the collimated laser light source to result in a path length for the collimated laser light source which constrains a path length through the notch filter which causes the collimated laser light to be reflected by the filter away from the grating. The grating is an aberration corrected concave focusing diffraction grating. The collimated light is in the form of a bundle having a width on the order of ten millimeters.

    Abstract translation: 公开了一种光分析系统，其包括将被分析的基本准直的光源。 源包括由准直激光源激发的样品，并且还包括具有在源被激发的激发波长处反射光的特征的全息陷波滤波器。 像差校正凹面聚焦衍射光栅接收准直光并将其聚焦在与其波长对应的点处。 检测器检测由衍射光栅聚焦的期望波长的光。 全息陷波滤波器被定位成对要被滤波的基本上准直的光源进行滤波，并且全息陷波滤波器基本上相对于准直激光光源成一定角度取向，从而导致准直激光光源的路径长度 通过陷波滤波器的路径长度，其使得准直激光被滤光器反射离开光栅。 光栅是像差校正凹面聚焦衍射光栅。 准直光是具有大约十毫米的宽度的束的形式。

    SYSTEM AND METHOD FOR DETERMINING SUCCESSIVE SINGLE MOLECULAR DECAY
    30.
    发明公开
    SYSTEM AND METHOD FOR DETERMINING SUCCESSIVE SINGLE MOLECULAR DECAY 审中-公开

    公开(公告)号：US20230251133A1

    公开(公告)日：2023-08-10

    申请号：US18130867

    申请日：2023-04-04

    Applicant: MIFTEK CORPORATION

    Inventor： Masanobu Yamamoto ,  Keegan Hernandez ,  J. Paul Robinson ,  John Jaiber González Murillo

    IPC: G01J3/44 ,  G01J3/02

    CPC classification number: G01J3/4406 ,  G01J3/0218 ,  G01J3/0227

    Abstract: A flow cytometry measurement system is disclosed which includes a flow chamber configured to flow particles of interest in a flow stream, one or more optical sources configured to excite the particles of interest by an excitation light activated and deactivated according to a pulse train thus causing particles of interest emitting emission light, one or more sensor packages each comprising a plurality of photodetectors configured to receive emission light from the particles of interest and, in response, provide an output voltage signal and an output current signal corresponding to photoelectron response of an incident photon on the one or more sensor packages, and a detector configured to determine successive single molecular decay of the particles of interest, generate an emission pulse associated with each incident photon on the one or more sensor packages, and count the number of emission pulses.

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