Omron of Kyoto, Japan, has received US Patent No. 6,856,359, “Biochip with means for scanning light and method of reading the biochip.” The patent covers a biochip with liquid crystal cells, each corresponding to a sample, that contain polarization filters and electrodes. By applying a voltage to a desired cell, external light is selectively applied to the sample. This makes it possible to reduce the size and cost and increase the speed of a biochip reade, according to the inventors.

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