Light-emitting diode; Infrared Light-emitting diode; Photo diode; Photo transistor; Laser diode; Integrated optical circuitry, namely, integrated circuits; Fingerprint reader, namely, fingerprint scanners; Field-Effect Transistor; optical sensor; Power Metal-Oxide-Semiconductor Field-Effect Transistor; LED driver IC, namely, integrated circuits; infrared sensing IC, namely, integrated circuits; UV LED; LED display; LED traffic light; UV optical sensor; Infrared Thermography sensor; Infrared Thermography sensor and integrated circuit module; Photoelectric Sensor; Barrier Schottky diode; Zener diode; CAR Radar Detector; Photoelectric motion detector; Signal coupler, namely, optical couplers; Communication device, namely, communications computers