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Multi-wavelength array reader for biological assay



Multi-wavelength array reader for biological assay



Official Gazette of the United States Patent & Trademark Office Patents 1280(2), Mar 9



The present invention relates to an array reader having a light source configured to emit an excitation light, a substrate comprising a plurality of sites spatially configured as a two-dimensional array having a plurality of rows and a plurality of columns, where each site is configured to support a sample. The array reader includes a changing device configured to determine which of said plurality of sites is illuminated at any given instant and a detector comprising a two-dimensional array of light sensitive elements, transmission grating beam splitter (TGBS) disposed along an optical path between the substrate and the detector, and a single light focusing element disposed along an optical path between the substrate and the detector. The TGBS is configured to receive non-collimated light emitted by at least one sample illuminated by said excitation light.

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Accession: 035349646

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