| 摘要 |
PURPOSE:To obtain a multichannel type optical rotary joint by arranging plural optical coupling systems on two joint parts butted and coupled with each other so as to be optionally rotated in accordance with prescribed procedure. CONSTITUTION:Two pairs of optical coupling systems 25, 27 and 26, 28 for the 1st and 2nd channels which transmit/receive light between the optical coupling systems in the same channel are arranged on the butted end faces 23, 24 of two joint parts 21, 22. In this case, these optical coupling systems 25, 27 and 26, 28 are arranged along a circumference formed on different positions in the radial direction (radius direction) from a rotating axis RA by determining the rotating axis RA of the joint parts 21, 22 as a concentrical axis. Thus, the multichannel optical rotary joint can be obtained. |
