Sharp-Light-Detecting-Optical-IC-Sharp-IS471FE-An-optical-IC-light-detector-that-consists-of-a-light-detecting-element-that-is-sensitive-to-the-near-infrared-portion-of-the-spectrum-together-with-associated-signal-processing-circuitry-all-integrated-onto-a-single-chip-The-device-employs-a-light-modulating-system-which-makes-the-device-impervious-to-disturbance-from-external-lights-Sharp-IS471FE-Optical-IC-Light-Detector