Imaging fluorometer for time resolved fluorescence
    21.
    发明授权
    Imaging fluorometer for time resolved fluorescence 失效
    成像荧光计用于时间分辨荧光

    公开(公告)号:US06806455B2

    公开(公告)日:2004-10-19

    申请号:US10240615

    申请日:2002-09-30

    CPC classification number: G01N21/6408 G01N2201/0648

    Abstract: The present invention relates to an apparatus and method for imaging time resolved fluorescence in biochemical and medical samples. In a primary aspect, the device includes a lens of large aperture, a flash lamp in the illumination path, a fast-acting solid state shutter or a gated detector in the emission path, a device for delivering homogenous monochromatic illumination to a plurality of wells distributed within a microwell plate, a digital camera of high quantum efficiency, and a computer under computer control, the lamp is pulsed at short intervals. The fast-acting emission shutter or gated detector operates to limit exposure of the camera to a period some microseconds after the extinction of each lamp pulse, during which only delayed fluorescence is transmitted to the camera. The invention achieves simultaneous time resolved imaging of a plurality of samples, with high sensitivity and high throughput.

    Abstract translation: 本发明涉及用于在生物化学和医学样品中成像时间分辨荧光的装置和方法。 在主要方面,该装置包括大孔径的透镜,照明路径中的闪光灯,发射路径中的快速固态快门或门控检测器,用于将均匀单色照明传送到多个孔的装置 分布在微孔板内,高量子效率的数码相机和计算机在计算机控制下,以短时间间隔脉冲。 快速发射快门或门控检测器操作以将相机的曝光限制在每个灯脉冲消失之后几微秒的时段,在此期间仅将延迟的荧光传输到相机。 本发明实现多个样品的同时时间分辨成像,具有高灵敏度和高产量。

    Imaging fluorometer for time resolved fluorescence
    22.
    发明申请
    Imaging fluorometer for time resolved fluorescence 失效
    成像荧光计用于时间分辨荧光

    公开(公告)号:US20030160151A1

    公开(公告)日:2003-08-28

    申请号:US10240615

    申请日:2002-09-30

    CPC classification number: G01N21/6408 G01N2201/0648

    Abstract: The present invention relates to an apparatus and method for imaging time resolved fluorescence in biochemical and medical samples. In a primary aspect, the device includes a lens of large aperture, a flash lamp in the illumination path, a fast-acting solid state shutter or a gated detector in the emission path, a device for delivering homogenous monochromatic illumination to a plurality of wells distributed within a microwell plate, a digital camera of high quantum efficiency, and a computer under computer control, the lamp is pulsed at short intervals. The fast-acting emission shutter or gated detector operates to limit exposure of the camera to a period some microseconds after the extinction of each lamp pulse, during which only delayed fluorescence is transmitted to the camera. The invention achieves simultaneous time resolved imaging of a plurality of samples, with high sensitivity and high throughput.

    Abstract translation: 本发明涉及用于在生物化学和医学样品中成像时间分辨荧光的装置和方法。 在主要方面,该装置包括大孔径的透镜,照明路径中的闪光灯,发射路径中的快速固态快门或门控检测器,用于将均匀单色照明传送到多个孔的装置 分布在微孔板内,高量子效率的数码相机和计算机在计算机控制下,以短时间间隔脉冲。 快速发射快门或门控检测器操作以将相机的曝光限制在每个灯脉冲消失之后几微秒的时段,在此期间仅将延迟的荧光传输到相机。 本发明实现多个样品的同时时间分辨成像,具有高灵敏度和高产量。

    Submergible optical sensor housing with protective shutter and methods
of operation and manufacture
    23.
    发明授权
    Submergible optical sensor housing with protective shutter and methods of operation and manufacture 失效
    具有保护快门的潜水光学传感器外壳和操作和制造方法

    公开(公告)号:US6111249A

    公开(公告)日:2000-08-29

    申请号:US118405

    申请日:1998-07-17

    Abstract: An apparatus for housing a submergible optical sensor is provided. The apparatus comprises a sensor body having a sensor opening. The sensor body is operable to protect a sensor when submerged in a fluid. A shutter is disposed above the sensor opening. A motor couples to the shutter and can rotate the shutter. A controller couples to the motor and is operable to cause the motor to rotate the shutter such that the sensor opening is exposed when the sensor takes a measurement. The controller is further operable to cause the motor to rotate the shutter such that the shutter covers the sensor opening when the sensor is not taking a measurement.

    Abstract translation: 提供一种用于容纳潜水光学传感器的装置。 该装置包括具有传感器开口的传感器主体。 传感器主体可操作以在浸没在流体中时保护传感器。 在传感器开口上方设有快门。 电机耦合到快门并可旋转快门。 控制器耦合到电动机并且可操作地使电动机旋转闸门,使得当传感器进行测量时传感器开口暴露。 控制器还可操作以使电动机旋转快门,使得当传感器未进行测量时,快门覆盖传感器开口。

    Apparatus for the detection of chemiluminescence

    公开(公告)号:US4863689A

    公开(公告)日:1989-09-05

    申请号:US126857

    申请日:1987-11-30

    Abstract: Apparatus is provided for the detection of chemiluminescence, e.g., the luminescent assay of an analyte in a sample. Sample, namely the production of a permanent photographic record of such chemiluminescence, e.g., by the use of a POLAROID film. The apparatus includes three interrelated elements. The first element comprises a film holder for holding a photographic film sensitive to a chemiluminescent reaction of the sample, the film holder defining a window in registry with any photographic film which may be held in the film holder. The second element comprises a sample holder for holding the sample in registry with the window and any photographic film which may be held in the film holder, and for allowing movements of the sample relative to any photographic film which may be held in the film holder between (i) a raised position, wherein the sample holder, and thus the sample is in spaced relation to any photographic film which may be held in the film holder and (ii) a lowered position, wherein said sample holder is in sufficiently close proximity to any photogarphic film which may be held in the film holder means to allow the sample held thereby directly to contact any photographic film which may be held in the film holder. The third element comprises a shutter operatively associated with the window of the film holder and movable between a closed position, wherein the shutter obstructs the window so as to prevent the sample holder from moving into the lowered position, and an opened position, wherein the window is unobstructed by the shutter so as to permit the sample holder to move from the raised position to the lowered position. The production of the permanent photographic record begins when the test sample in the container is placed in direct contact with the photographic film. The production of the photographic record is stopped when the test sample in the container is removed out of direct contact with the photographic film and the slidig shutter is closed. Various test results can be observed by varying the time of direct contact of the test sample in the reactant container with the photographic film. This provides maximal analytical sensitivity. During the entire test, exposure to ambient light is prevented.

    Fluorescence microscopy
    26.
    发明授权
    Fluorescence microscopy 失效
    荧光显微镜

    公开(公告)号:US4791310A

    公开(公告)日:1988-12-13

    申请号:US914367

    申请日:1986-10-02

    Abstract: A multi-chronal fluorescence imaging technique for spatial differentiation and correlation of a plurality of separate sample components tagged with site specific dyes is described. The dyes have decay times that are widely separated and vary by approximately a factor of ten from one dye to the next. These are added to the sample and are excited with a short pulse of ultraviolet light. Between the sample and a detector is placed an adjustable shutter or gate which is opened and closed at predetermined intervals so that the detector can see the approximate maximum intensity output of each dye in a shown ordered sequence without significant interference from the other dyes.

    Abstract translation: 描述了用于用位点特异性染料标记的多个单独的样品组分的空间分化和相关性的多次荧光成像技术。 染料具有广泛分离的衰变时间,并且从一种染料到下一种染料变化约十倍。 将它们加入到样品中并用短脉冲的紫外线激发。 在样品和检测器之间放置可调节的快门或门,其以预定间隔打开和关闭,使得检测器可以以所示有序序列看到每种染料的近似最大强度输出,而没有来自其它染料的显着干扰。

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