| 摘要 |
PROBLEM TO BE SOLVED: To obtain an optical bus with high resistance to dust or like and environment change such as temperature change in which the free attachment or detachment of a circuit board can be easily attained according to the extendibility of a system by diffusing an incident signal beam to an optical bus main body by a signal beam incident part, and diffusing and a signal beam propagated in the optical bus main body by a signal beam emitting part. SOLUTION: An optical bus 10 is provided with a signal beam incident part 11, signal beam emitting part 14, and light transmitting layer 16 constituting an optical bus 10 main body for propagating the incident signal beam to the signal beam emitting part 14. A first light diffusing layer 12 of the signal beam incident part 11 diffuses the incident signal beam to the light transmitting layer 16. This light diffusing layer 12 is adhered to the edge face of the light transmitting layer 16. Also, a second light diffusing layer 15 of the signal beam emitting part 14 diffuses a signal light propagated through the light transmitting layer 16, and emits it from the signal beam emitting part 14. This light diffusing layer 15 is adhered to the edge face of the light transmitting layer 16 at an opposite side to the edge face to which the light diffusing layer 12 is adhered. |
