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    • 4. 发明申请
    • HANDHELD FLUOROMETER
    • 手持式荧光计
    • WO2016025205A1
    • 2016-02-18
    • PCT/US2015/043384
    • 2015-08-03
    • ECOLAB USA INC.
    • TOKHTUEV, EugeneSKIRDA, AnatolyPILIPCHENKO, AnnaBOLDUC, John WilhelmVALENSTEIN, Justin ScottBAKKEN, AmandaFAWBUSH, StacyHUTCHISON, Jeffrey
    • G01N21/64
    • G01N21/645G01N21/6428G01N21/6486G01N21/8507G01N21/8806G01N2021/6471G01N2201/068
    • A fluorometer for measuring fluorescence of a sample includes an excitation source for emitting electromagnetic radiation along a first beam path to induce fluorescence in the sample. An excitation filter transmits electromagnetic radiation from the excitation source toward the sample. An excitation filter holder supports the excitation filter and defines an aperture for passage of electromagnetic radiation from the excitation source. The aperture is positioned asymmetrically relative to the first beam path such that the aperture allows an asymmetrical portion of the electromagnetic radiation in the first beam path to pass toward the sample and the excitation filter holder blocks passage of a corresponding asymmetrical portion of the electromagnetic radiation in the first beam path. The blocked passage of the corresponding asymmetrical portion of the electromagnetic radiation in the first beam path reduces the amount of electromagnetic radiation oriented directly from the emitter module to the detector module.
    • 用于测量样品荧光的荧光计包括用于沿着第一光束路径发射电磁辐射以在样品中诱导荧光的激发源。 激发滤波器将来自激发源的电磁辐射传递给样品。 激励过滤器保持器支撑激励过滤器并且限定用于来自激发源的电磁辐射通过的孔。 孔径相对于第一光束路径不对称地定位,使得孔口允许第一光束路径中的电磁辐射的不对称部分朝向样品传递,并且激发滤光器保持器阻止电磁辐射的对应不对称部分的通过 第一个光束路径。 第一光束路径中电磁辐射的对应不对称部分的阻挡通道减少了从发射器模块直接定向到检测器模块的电磁辐射量。