| 摘要 |
PURPOSE:To obtain a relay suitable for the on/off of the switching of a laser beam. CONSTITUTION:The end faces 1a-3a of a movable optical fiber 1 and fixed optical fibers 2 and 3 which switch the laser beam are provided in a case 6, and a driving block 22 which drives the movable optical fiber 1 is provided in the outside part of the case 6, so that worn particles, etc., are prevented from adhering to the end faces 1a-3a caused by the on/off of the block 22, and the stable on/off of the switching of the laser beam is performed. |
