| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical transmission system with which signals can be transmitted at high speed between a rotating body and a fixed body while keeping the restoration accuracy of signals. SOLUTION: Concerning this optical transmission system, the signals are transmitted between a rotating body 1 and a fixed body 2, which are contactlessly arranged, through a transmission system 3 for sending optical signals and a reception system 4 for receiving optical signals. The rotating body 1 is provided with the transmission system 3 and the fixed body 2 is provided with the reception system 4. The transmission system 3 is equipped with a laser light discharging part (light emitting part) 6 for generating a laser beam LB. The laser beam discharging part 6 is arranged at a certain position so as to discharge the optical signals at an angle turned toward a virtual point P1 determined on the central axis of the rotating body 1. The reception system 4 is equipped with a plane mirror 9 for reflecting the laser beam LB and a light receiving element 10 for receiving the laser beam LB reflected on this plane mirror 9. The plane mirror 9 is arranged at the position capable of reflecting the optical signals from the laser beam discharging part 6, and the light receiving element 10 is arranged at the convergent point of the laser beam LB determined by the mutual geometrical optical position relation between the arranging position of the plane mirror 9 and the virtual point P1. |
