| 摘要 |
PURPOSE:To obtain a titled device having excellent durability by disposing one of optical coupling means on the concentrical circle with the revolving shaft on the plane of a rotating body opposite to a fixing member and disposing the other of the optical coupling means on the same circle as the concentrical circle to which one of the optical coupling means is disposed on the plane of the fixing member opposite to the rotating body. CONSTITUTION:An optical fiber bundle 10 with one end face thereof being bundled is disposed in the rotating body 6 in such a manner that a light emitting element 12 is opposed to the end face thereof in the rotating body 6. The other end face is arranged on the concentrical circle with a revolving shaft 4 on the plane of the rotating body 6 where the rotating body 6 opposes to a base 2 surface. One end face of the optical fiber bundle 14 is arranged along the same circle as the circle to which the end face of the optical fiber bundle 10 in the rotating body 6 is arranged on the plane of the base 2 where the base 2 opposes the rotating body 6 within the base 2. The ether end face of the optical fiber bundle 14 is bundled and a light receiving element 16 is provided opposite thereto. The light emitted from the element 12 is thereby entered through the bundle 10 into an optical fiber bundle 14, is collected by said bundle and is guided to the element 16. |
