OPTICAL TRANSCEIVER FOR VISIBLE LIGHT COMMUNICATION AND OPTICAL COMMUNICATION SYSTEM USING THE SAME

摘要

An optical receiver for visible light communication and an optical communication system using the same are provided to generate a control signal for controlling the intensity of visible light, encoding and decoding rates generated in an optical transmitter, and transmit the control signal to the optical transmitter, thereby controlling the wavelength, encoding and decoding rates of the visible light to minimize limitation in use according to a use environment and minimize malfunction. An optical filter(122) includes a first thin film layer(122a) and a second thin film layer(122b). The first thin film layer transmits visible light for optical communication. The second thin film layer is installed around the first thin film layer to transmit ultraviolet light or infrared light. A first light detector(123) receives the visible light transmitting the first thin film layer. A second light detector(124) receives the intensity of the ultraviolet light or the infrared light transmitting the second thin film layer. A lens system(121) focuses light, inputted from the outside, on the optical filter.