| 摘要 |
PURPOSE:To transmit a lot of signals without generating any noise between a rotating body and a fixed body by opposing plural photodetectors or light emitting elements face to the rotating body or the fixed body along the axial direction, and providing them in each partitioned view camera. CONSTITUTION:A signal transmitted from an optical fiber 15 is converted to an electric signal by a photoelectric converter 19 of a rotating side converter unit 18, passes through an amplifier 20, and is emitted as an optical signal from a light emitting element 43. Its optical signal is photodetected by a photodetector 38 of a fixed side through a condensing lens 44, and its output passes through an amplifier 48, is converted to an optical signal again by an electro-optic converter 49, and transferred by a fixed-side optical fiber 50. On the other hand, the optical signal transmitted from the fixed-side optical fiber 50 becomes an optical signal through a photoelectric converter 46, an amplifier 47 and a light emitting element 32, passes through a photodetector 27, and the optical signal is transferred to the rotating-side optical fiber 15 through the electro-optic converter. Each pair of the light emitting elements 32, 43 and the photodetectors 27, 38 is placed in partitioned view cameras 42, 31, therefore, no noise is generated. |
