Electroluminescent illumination source for optical detection systems
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United States of America Patent
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Oct 19, 2010
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app pub date -
Dec 22, 2004
filing date -
Apr 30, 2004
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Abstract
An optical detection system that utilizes an electroluminescent (EL) illumination source is provided. Unlike illumination sources used with some conventional optical detection systems, an EL device is relatively homogeneous and diffuse, and thus may provide uniform illumination to the test sample. In addition, the emitted light intensity of the EL device may be easily controlled by simply varying the voltage or the frequency of the applied current. The relatively flexibility of EL devices may also allow them to be readily incorporated into a chromatographic-based assay device for detecting the presence or absence of an analyte within a test sample.
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