中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

432 records (took 0.023 seconds)

    Illumination device and method for spectroscopic analysis
    233.
    发明授权
    Illumination device and method for spectroscopic analysis 失效
    照明装置及光谱分析方法

    公开(公告)号：US06862091B2

    公开(公告)日：2005-03-01

    申请号：US09832586

    申请日：2001-04-11

    Applicant: Robert D. Johnson

    Inventor： Robert D. Johnson

    IPC: G01J3/02 ,  G01J3/10 ,  G02B6/42 ,  G02B27/00 ,  G01J3/28

    CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/0216 ,  G01J3/0218 ,  G02B6/4206 ,  G02B6/4298 ,  G02B27/0927 ,  G02B27/0994

    Abstract: An illumination subsystem for use in optical analysis which provides spatially and angularly homogenized radiation to the sample being analyzed. The system eliminates the illumination system as an interferent in the overall optical analysis. Thus, modest translations or rotations of the illumination source or changing the illumination source does not require recalibration of the instrument or prior modeling of illumination variability due to such changes. Illumination stability is achieved by incorporating a light pipe which both angularly and spatially homogenizes the light. Further, a series of filters and/or lenses are incorporated to provide bandpass filtering which eliminates unwanted wavelengths or bands of wavelengths from contacting the tissue and allows for a higher signal-to-noise ratio when the sample is tissue, while preventing thermal damage.

    Abstract translation: 用于光学分析的照明子系统，其向正在分析的样品提供空间和角度均匀的辐射。 该系统在整个光学分析中消除了作为干扰物的照明系统。 因此，照明源的适度平移或旋转或改变照明源不需要对仪器进行重新校准或由于这种变化而对照明变异性的先前建模。 照明稳定性通过并入光源的角度和空间均匀化的光管来实现。 此外，并入一系列滤光器和/或透镜以提供带通滤波，其消除不想要的波长或波段的波段与组织接触，并且当样品是组织时允许更高的信噪比，同时防止热损伤。

    Apparatus and method for measuring optical characteristics of an object
    234.
    发明申请
    Apparatus and method for measuring optical characteristics of an object 有权

    公开(公告)号：US20030103199A1

    公开(公告)日：2003-06-05

    申请号：US10302512

    申请日：2002-11-22

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

    IPC: G01N021/00 ,  G01N021/25 ,  G01N021/47

    CPC classification number: G01J3/02 ,  G01J3/0205 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/0229 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/0278 ,  G01J3/04 ,  G01J3/508 ,  G01J3/51 ,  G01J3/513 ,  G01J2003/2866 ,  G01N21/03

    Abstract: Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of an object are disclosed. Perimeter receiver fiber optics are spaced apart from a source fiber optic and receive light from the surface of the object 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 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 prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a data base.

    System for non-invasive measurement of glucose in humans
    235.
    发明申请
    System for non-invasive measurement of glucose in humans 有权
    用于非侵入性测量人体葡萄糖的系统

    公开(公告)号：US20030023152A1

    公开(公告)日：2003-01-30

    申请号：US09832585

    申请日：2001-04-11

    Inventor： Russell E. Abbink ,  Robert D. Johnson ,  John D. Maynard

    IPC: A61B005/00

    CPC classification number: A61B5/1455 ,  A61B5/0075 ,  A61B5/14532 ,  G01J3/02 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/10

    Abstract: An apparatus and method for non-invasive measurement of glucose in human tissue by quantitative infrared spectroscopy to clinically relevant levels of precision and accuracy. The system includes six subsystems optimized to contend with the complexities of the tissue spectrum, high signal-to-noise ratio and photometric accuracy requirements, tissue sampling errors, calibration maintenance problems, and calibration transfer problems. The six subsystems include an illumination subsystem, a tissue sampling subsystem, a calibration maintenance subsystem, an FTIR spectrometer subsystem, a data acquisition subsystem, and a computing subsystem.

    Abstract translation: 一种用于通过定量红外光谱对人体组织中葡萄糖进行非侵入性测量的临床相关水平的精确度和准确度的装置和方法。 该系统包括六个子系统，优化以应对组织光谱的复杂性，高信噪比和光度精度要求，组织采样误差，校准维护问题和校准转移问题。 六个子系统包括照明子系统，组织采样子系统，校准维护子系统，FTIR光谱仪子系统，数据采集子系统和计算子系统。

    Method and device for surface evaluation
    236.
    发明申请
    Method and device for surface evaluation 失效
    表面评估方法和装置

    公开(公告)号：US20020176093A1

    公开(公告)日：2002-11-28

    申请号：US10117636

    申请日：2002-04-05

    Inventor： Klaas Hendrik De Haas ,  Gerrit Cornelis Dubbeldam ,  Ivo Bernardus Nicolaas Van Der Lans ,  Robin Paul Fries

    IPC: G01N021/47

    CPC classification number: G01N21/255 ,  G01J3/0216 ,  G01J3/10 ,  G01N21/57

    Abstract: Device and method for recording the visual properties of a surface, comprising an imaging device for recording light interaction (reflection or transmission) with a surface, a light source, and a sample area for positioning a sample with a surface to be examined. The imaging device, the light source, and the sample area are arranged in such a way that in one image at least one of the surface properties is recordable as a function of a continuous range of angles between the illumination direction and the observation direction. The imaging device is a CCD camera. The device and method are suitable for imaging and evaluating visual properties which are dependent on the optical geometry, such as flop behavior and gloss.

    Abstract translation: 用于记录表面的视觉特性的装置和方法，包括用于记录与表面，光源和样品区域的光相互作用（反射或透射）的成像装置，用于定位具有待检查表面的样品。 成像装置，光源和样本区域被布置成使得在一个图像中，至少一个表面性质可以作为照明方向和观察方向之间的连续的角度范围的可记录。 成像装置是CCD相机。 该装置和方法适用于成像和评估取决于光学几何的视觉特性，例如翻转行为和光泽度。

    Sample inspection system
    237.
    发明申请
    Sample inspection system 有权

    公开(公告)号：US20010002149A1

    公开(公告)日：2001-05-31

    申请号：US09746141

    申请日：2000-12-21

    Inventor： Mehdi Vaez-Iravani ,  Stanley Stokowski ,  Guoheng Zhao

    IPC: G01N021/88

    CPC classification number: G01J3/44 ,  G01J3/0216 ,  G01J3/0229 ,  G01N21/21 ,  G01N21/47 ,  G01N21/474 ,  G01N21/8806 ,  G01N21/94 ,  G01N21/9501 ,  G01N2021/8825 ,  G01N2021/8845 ,  G01N2021/8848 ,  G01N2201/065

    Abstract: A curved mirrored surface is used to collect radiation scattered by a sample surface and originating from a normal illumination beam and an oblique illumination beam. The collected radiation is focused to a detector. Scattered radiation originating from the normal and oblique illumination beams may be distinguished by employing radiation at two different wavelengths, by intentionally introducing an offset between the spots illuminated by the two beams or by switching the normal and oblique illumination beams on and off alternately. Beam position error caused by change in sample height may be corrected by detecting specular reflection of an oblique illumination beam and changing the direction of illumination in response thereto. Butterfly-shaped spatial filters may be used in conjunction with curved mirror radiation collectors to restrict detection to certain azimuthal angles.

    Optical energy transfer method
    238.
    发明授权
    Optical energy transfer method 失效
    光能传递方法

    公开(公告)号：US5920385A

    公开(公告)日：1999-07-06

    申请号：US891847

    申请日：1997-07-10

    Applicant: Val J. Rossiter

    Inventor： Val J. Rossiter

    IPC: G01J3/02 ,  G01N21/65 ,  G01N21/00 ,  G01J3/00 ,  G01J3/40 ,  G01J3/44

    CPC classification number: G01N21/65 ,  G01J3/02 ,  G01J3/0216 ,  G01N2021/651

    Abstract: A method of collecting optical energy which allows the use of short focal length mirrors of relatively small physical size and in particular the use of the standard collecting mirrors usually employed in such spectrophotometers, for a wide range of sample sizes and collection configurations. A relatively large diameter internal surface, which in many cases can be incorporated into the design of other elements in the sampling system, is used. A physically large cell is interfaced to a radiation collector, such as a mirror. In this case the nut sealing the end window on the cell is internally coated (with gold in the preferred embodiment) to constitute a surface and this acts as a transfer mechanism for the backs-scattered radiation from sample. A solid collecting angle of 60 degrees (in this example) can be so obtained to transfer the energy to the standard radiation collector, such as a collecting mirror, of the spectrophotometer. Radiation, such as laser light, incident upon the sample reflects off the internal optic transfer surface and so falls incident on a collecting mirror, or the like.

    Abstract translation: 收集光能的方法，其允许使用相对较小物理尺寸的短焦距反射镜，并且特别是使用通常用于这种分光光度计的标准收集镜，用于宽范围的样品尺寸和收集配置。 使用相对较大直径的内表面，其在许多情况下可以并入到采样系统中的其他元件的设计中。 物理上大的单元与辐射收集器（例如反射镜）相接。 在这种情况下，密封电池单元端面窗口的螺母被内部涂覆（在优选实施例中为金）以构成表面，并且其用作来自样品的背散射辐射的转移机构。 如此获得60度的固体收集角度（在该示例中），以将能量转移到分光光度计的标准辐射收集器，例如收集镜。 入射到样品上的诸如激光的辐射反射离开内部光学传递表面，因此落在收集反射镜等上。

    Sensitive light detection system
    239.
    发明授权
    Sensitive light detection system 失效
    敏感光检测系统

    公开(公告)号：US5315375A

    公开(公告)日：1994-05-24

    申请号：US833926

    申请日：1992-02-11

    Applicant: Fritz S. Allen

    Inventor： Fritz S. Allen

    IPC: G01J1/04 ,  G01N21/64

    CPC classification number: G01N21/645 ,  G01J3/0216 ,  G01N2021/6463 ,  G01N21/6456

    Abstract: Apparatus and method for using the apparatus are provided, where the apparatus provides for a light beam of variable area in a narrow wavelength band, where the size of the beam incident on a sample and relative movement of the sample and light irradiation and collection means is carefully controlled, so as to vary the site of interrogation. A discrete element collector system is used to efficiently collect the emitted light from the sample and direct it to a focusing lens, filter pack and photodetector for collection of the light and transmitting signals to electronic circuitry for analysis.

    Abstract translation: 提供了使用该装置的装置和方法，其中装置提供在窄波长带中的可变区域的光束，其中入射到样本上的光束的尺寸和样品和光照射和收集装置的相对运动是 仔细控制，以便改变询问现场。 离散元件收集器系统用于有效地收集来自样品的发射光并将其引导到聚焦透镜，滤光片组件和光电检测器，用于收集光并将信号传输到电子电路进行分析。

Patent Agency Ranking