| 摘要 |
PROBLEM TO BE SOLVED: To increase a transmission band width in one-to-one communication by changing over optical transmission paths from one to the other at the time of broadcast communication and one-to-one communication. SOLUTION: The optical bus 10 is composed of a transparent parallel-plate of polymethyl-methacrylate, and plural optical signal incident parts 11a, (11b, 11c) are formed on the top face, plural optical signal outgoing parts 14a, 14b, (14c) are formed on the bottom, and plural outgoing direction change-over part 12a, (12b, 12c) and plural light diffusing parts 13a, (13b, 13c) are formed inside. Optical transmission paths are changed over from one to the other by the outgoing direction change-over part at the time of broadcast communication and one-to-one communication. |
