中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

202 records (took 0.014 seconds)

    Multichannel optical monitoring system
    101.
    发明授权
    Multichannel optical monitoring system 失效
    多通道光学监控系统

    公开(公告)号：US5002392A

    公开(公告)日：1991-03-26

    申请号：US443952

    申请日：1989-12-01

    Applicant: C. Hermas Swope ,  John G. Link ,  Douglas G. Haugen ,  Joseph G. Karp

    Inventor： C. Hermas Swope ,  John G. Link ,  Douglas G. Haugen ,  Joseph G. Karp

    IPC: G01J3/42 ,  G01J3/18 ,  G01N21/03 ,  G01N21/13 ,  G01N21/25 ,  G01N21/27 ,  G01N35/04

    CPC classification number: G01J3/02 ,  G01J3/0232 ,  G01N21/253 ,  G01J3/1838 ,  G01N2021/0325

    Abstract: A multichannel optical monitoring system for monitoring the spectral transmission of a plurality of samples. A plurality of light beams are generated and a plurality of optical monitoring stations are arranged along a pathway, each station having an optical path formed by one of the light beams transverse to the pathway and along which optical characteristics are monitored. A drive mechanism moves a plurality of reaction wells, each containing a reaction volume, along the pathway from station to station so that respective reaction volumes dwell periodically in each optical path for transmitting a respective one of the light beams. A diffraction grating is arranged for diffracting the beams transmitted by respective ones of the reaction volumes. The diffracted beams are focussed and at least one array of photodetectors is positioned for receiving the diffracted and focussed beams for producing electrical signals representing the spectral content of the diffracted beams. An electronic circuit detects the electrical signals of the array, which signals may be stored for further processing and evaluation.

    Abstract translation: 一种用于监测多个样本的光谱透射的多通道光学监测系统。 产生多个光束，并且沿着路径布置多个光学监视站，每个站具有由横向于路径的一个光束形成的光路，并且监视光学特性。 驱动机构沿着从站到站的路径移动多个反应孔，每个反应孔包含反应体积，使得相应的反应体积周期性地驻留在每个光路中，以传输相应的一个光束。 衍射光栅被布置用于衍射由相应反应体积传输的光束。 衍射光束被聚焦，并且至少一个光电检测器阵列被定位成用于接收衍射和聚焦光束，以产生表示衍射光束的光谱含量的电信号。 电子电路检测阵列的电信号，哪些信号可以存储用于进一步的处理和评估。

    Low profile spectral analysis system
    103.
    发明授权
    Low profile spectral analysis system 失效
    低调光谱分析系统

    公开(公告)号：US4850706A

    公开(公告)日：1989-07-25

    申请号：US162907

    申请日：1988-03-02

    Applicant: Thomas Mikes

    Inventor： Thomas Mikes

    IPC: G01J3/02 ,  G01J3/18 ,  G01J3/28

    CPC classification number: G01J3/1838 ,  G01J3/0256 ,  G01J3/2803

    Abstract: A spectral analysis system which may operate as a spectrograph or monochromator comprises a folded optical path within a housing wherein the optical input is provided on one side and the optical output is provided on an opposite side at a spectral focal field, thereby separating optical and electrical functions. The folded optical path is provided within a vertically extending portion of the housing providing for a narrow profile to the optical instrument and keeping the entrance and exit apertures in-line in close proximity. The grating is caused to operate in a near Littrow condition with a reflecting prism having first and second inclined surfaces which respectively reflect entrance aperture light to said grating and disperse exit aperture light from said grating along paths slightly inclined to the Littrow axis of the grating. The prism surface reflecting light to the spectral focal field may be cylindrically concave to focus the output radiation at different frequencies onto a substantially planar spectral focal field. The grating is operated with the spectral separation occurring in a plane orthogonal to the plane containing the gratings recording points. A tilt adjustment for the grating may employed in order to operate the spectral analysis system as a monochromator.

    Abstract translation: 可以作为光谱仪或单色仪操作的光谱分析系统包括在壳体内的折叠光路，其中光输入设置在一侧，并且光输出设置在光谱焦点的相对侧，从而分离光和电 功能。 折叠的光路设置在壳体的垂直延伸部分内，为光学仪器提供窄的轮廓，并使入口和出口孔保持紧密接近。 使光栅在近Littrow条件下工作，反射棱镜具有第一和第二倾斜表面，其分别将入射孔径光反射到所述光栅，并且沿着与光栅的Littrow轴稍微倾斜的路径从所述光栅分散出射孔光。 将光反射到光谱焦点的棱镜表面可以是圆柱形凹陷的，以将不同频率的输出辐射聚焦到基本上平坦的光谱焦点上。 光栅在与包含光栅记录点的平面正交的平面中发生光谱分离的情况下操作。 可以采用光栅的倾斜调整，以便将光谱分析系统作为单色仪进行操作。

    Spectrometer using concave holographic diffraction grating
    104.
    发明授权
    Spectrometer using concave holographic diffraction grating 失效
    光谱仪采用凹面全息衍射光栅

    公开(公告)号：US4815849A

    公开(公告)日：1989-03-28

    申请号：US139884

    申请日：1987-12-30

    Applicant: James J. Sullivan

    Inventor： James J. Sullivan

    IPC: G01J3/18 ,  G01J3/28

    CPC classification number: G01J3/32 ,  G01J3/02 ,  G01J3/0237 ,  G01J3/04 ,  G01J3/1838 ,  G01J3/2803

    Abstract: A spectrometer including a source of light, a slit member along the path of the light emitted from the source, a holographic, concave grating in the path of the light passing through the slit member, and a photodetector in the path of the diffracted light reflected from the grating. The photodetector is positioned substantially along the portion of the primary horizontal focal curve of the grating where it is intersected three times by a vertical focal curve of the grating. The three intersections being on the same side of the normal vector to the grating and two of the intersecting points being the positions of the laser used to form the grating.

    Optical systems utilizing a volume transmission diffraction element to provide wavelength tuning
    105.
    发明授权
    Optical systems utilizing a volume transmission diffraction element to provide wavelength tuning 失效
    利用体积传播衍射元件提供波长调谐的光学系统

    公开(公告)号：US4752130A

    公开(公告)日：1988-06-21

    申请号：US922913

    申请日：1986-10-24

    Applicant: Nicholas George ,  Thomas W. Stone

    Inventor： Nicholas George ,  Thomas W. Stone

    IPC: G01J3/18 ,  G02F1/33 ,  H01S3/08

    CPC classification number: G01J3/1838 ,  G02F1/33

    Abstract: An optical system which provides wavelength tuning and which may be a spectrometer, monochromator or tunable laser uses a volume transmission diffraction element which is characterized by a periodic, spatial variation of refractive index or polarizability or other light transmission effecting parameter, and which is distributed throughout the volume of the element. The wavelength is tuned by (1) varying the angles of the incident and diffracted light symmetrically with respect to the periodic distribution in the element and/or (2) by varying the spatial period of the diffracting element's volume modulation distribution which is maintained symmetric with respect to fixed incident and diffracted beam angles.

    Abstract translation: 提供波长调谐并且可以是光谱仪，单色仪或可调谐激光器的光学系统使用体积透射衍射元件，其特征在于折射率或极化率或其他光透射效应参数的周期性，空间变化，并且其分布在整个 元素的体积。 通过（1）通过（1）相对于元件中的周期性分布对称地改变入射角和衍射光的角度和/或（2）通过改变维持对称的衍射元件的体积调制分布的空间周期来调谐波长， 关于固定事件和衍射光束角。

    Continuously rotating grating rapid-scan spectrophotometer
    106.
    发明授权
    Continuously rotating grating rapid-scan spectrophotometer 失效
    连续旋转光栅快速扫描分光光度计

    公开(公告)号：US4732476A

    公开(公告)日：1988-03-22

    申请号：US759291

    申请日：1985-07-26

    Applicant: Yoav Barshad

    Inventor： Yoav Barshad

    IPC: G01J3/06 ,  G01J3/18 ,  G01J3/28

    CPC classification number: G01J3/06 ,  G01J3/2889 ,  G01J3/1838

    Abstract: An improved rapid-scan spectrophotometer with an optical grating continuously rotating at a constant angular velocity. An optical trigger actuated by the rotating turntable supporting the grating, actuates an analog to digital converter to sample at discrete times an output signal from the sample detector over the desired wavelength range and to store the digitized information in a direct memory access (DMA) buffer. The information may be retrieved as desired from the buffer for further processing or permanent data storage. With each revolution of the optical grating, the range (typically 15.degree.) of wavelengths from the grating that provides useful information is sampled by the analog to digital converter and stored in the buffer. Because the grating is continuously rotating at a constant angular velocity and is not limited by the inertia of optical components, the spectrophotometer can be operated at a much higher scanning speed than an oscillating or vibrating grating spectrophotometer.

    Abstract translation: 一种改进的快速扫描分光光度计，其光栅以恒定角速度连续旋转。 由支撑光栅的旋转转盘启动的光学触发器致动模数转换器，以在离散时间对来自样品检测器的所需波长范围的输出信号进行采样，并将数字化信息存储在直接存储器存取（DMA）缓冲器 。 可以根据需要从缓冲器中检索信息以用于进一步处理或永久数据存储。 随着光栅的每次旋转，来自提供有用信息的光栅的波长范围（通常为15°）由模数转换器采样并存储在缓冲器中。 因为光栅以恒定的角速度连续旋转，并且不受光学部件的惯性的限制，所以分光光度计可以以比振荡或振动光栅分光光度计高得多的扫描速度运行。

    Rapid scan spectral analysis system utilizing higher order spectral reflections of holographic diffraction gratings
    107.
    发明授权
    Rapid scan spectral analysis system utilizing higher order spectral reflections of holographic diffraction gratings 失效
    利用全息衍射光栅的高阶光谱反射的快速扫描光谱分析系统

    公开(公告)号：US4264205A

    公开(公告)日：1981-04-28

    申请号：US940360

    申请日：1978-09-07

    Applicant: Isaac J. Landa

    Inventor： Isaac J. Landa

    IPC: G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G01N21/31

    CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0221 ,  G01J3/0232 ,  G01J3/024 ,  G01J3/0262 ,  G01J3/10 ,  G01J3/26 ,  G01J3/2889 ,  G01N21/314 ,  G01J2003/1273 ,  G01J2003/2853 ,  G01J3/1838

    Abstract: An improved optical system is disclosed for rapid, accurate spectral analysis of the reflectivity or transmissivity of samples. A concave holographic diffraction grating oscillated at high speed is utilized to provide a rapid scanning of monochromatic light through a spectrum of wavelengths. The grating is positively driven at very high speed. The rapid scan by the grating enables the reduction of noise error by averaging over a large number of cycles. It also reduces the measurement time and thus prevents sample heating by excessive exposure to light energy. A filter wheel having opaque segments is rotated in the optical path and is synchronous with the grating. The filter wheel is divided into two arcuate segments separated by the opaque segments arranged approximately 180 degrees apart. One arcuate segment of the wheel transmits only first order light. The other arcuate segment transmits only second order light. Separate photodetectors are employed during infrared analysis of samples for detecting first order and second order wavelength transmissions and an electronic decoder apparatus is utilized for switching between detectors.

    Abstract translation: 公开了一种改进的光学系统，用于对样品的反射率或透射率进行快速，准确的光谱分析。 利用以高速振荡的凹面全息衍射光栅，通过一系列波长快速扫描单色光。 光栅以非常高的速度被正向驱动。 光栅的快速扫描使得能够通过大量循环的平均来减少噪声误差。 它还减少测量时间，从而防止过度暴露于光能的样品加热。 具有不透明段的滤光轮在光路中旋转并与光栅同步。 过滤轮被分成两个弧形段，这些弧段由分开大约180度的不透明段分开。 车轮的一个弧形段仅传送一级光。 另一个弧形段仅传送二阶光。 在用于检测一阶和二阶波长传输的样本的红外分析期间采用单独的光电检测器，并且使用电子解码器装置在检测器之间切换。

    Diffraction gratings
    108.
    发明授权
    Diffraction gratings 失效

    公开(公告)号：US3628849A

    公开(公告)日：1971-12-21

    申请号：US3628849D

    申请日：1969-06-13

    Applicant: JOBIN & G YVON INSTR DE PRECIS

    Inventor： FLAMAND JEAN ,  LABEYRIE ANTOINE ,  PIEUCHARD GUY

    IPC: G01J3/18 ,  G02B5/32 ,  G02B5/18

    CPC classification number: G02B5/32 ,  G01J3/1838

    Abstract: The invention relates to new gratings constituted by a support bearing on a sensitive face the grooves of the gratings which are located at the intersection of the said face of the support by a family of surfaces geometrically such as the equiphase surfaces obtained as loci of the maxima of luminous intensity upon the interference of two beams originating from two point sources. These gratings may be realized by holography, by using as sensitive layer a layer of a photopolymerizable resin, the best results being obtained with a layer of thickness smaller than approximately 2 microns. These gratings are useful for the realization of new or improved spectrographic devices.

Patent Agency Ranking