Request InfoiC-Haus GmbHiC-Haus has developed optical encoders with photodiodes designed especially for blue light. The encoder chips optimize scanning and signal interpolation in the smallest available space of a flat 5-mm2 optoQFN package with a plane window. Due to the optimized phased-array structure of the opto-chips, a minimal scanning area of only 1.9 × 3.1 mm is sufficient to generate 10,000 pulses per revolution using a code disc with a diameter of 26 mm. 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