| 摘要 |
PURPOSE:To improve the communication characteristic by forming one adjusting mechanism of a mirror face interface section flat and the other as a spherical projection so as to attain ease of assembling and adjustment of high position accuracy. CONSTITUTION:A block for fitting mirror face is fitted to split mirror faces 41, 42 by a tightening screw 33 via a buffer member 34. Further, a flange 38 is fitted to the block for fitting mirror face by tightening it by a coupling bolt 7 so that the height of the mirror faces 41, 42 is coincident while the spherical projection 39 is inserted at the center of the interface flange 38 corresponding to the block for fitting mirror face. Then, an adjusting metallic fixture 35 is brought into contact with the flange 38 and an adjusting screw 36 fitted freely turnably to a back structure is screwed to the metallic fixture 35, thereby adjusting the height and position of the mirror faces 41, 42. |
