| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-speed light transmitter-receiver capable of being economically miniaturized and reducing power consumption. SOLUTION: This light transmitter-receiver 100 on a host side is provided with a light transmission means where a light emitting element 108 for emitting optical signals provided with a narrow direction/light convergence property corresponding to transmission information is disposed, a light reception part 103 where a light receiving element for receiving the optical signals from the light transmitter-receiver 101 on a terminal side is disposed and a plate 102 for diffusing, converting and transmitting or reflecting the optical signals projected from the light transmission means. The prescribed position of the plate 102 is irradiated with the optical signals from the light emitting element 108, a secondary light source 106 is formed on the plate 102 viewing from the light transmitter-receiver 101 on the terminal side and light from the secondary light source 106 is transmitted to the light transmitter-receiver 101 on the terminal side. |
