| 摘要 |
PURPOSE:To easily open and close an important part, by constituting an optical U-link so that the power supply is cut off when an U-type optical plug has been drawn out. CONSTITUTION:An electric conductor jack 64 is provided on an optical link jack 6 having a laser device 2, photoconductive paths 62, 66 and insertion holes 63, 67, and an electric conductor plug 74 is provided on an optical link plug 7 having a photoconductive path 72 and insertion projecting parts 73, 76. According to such a constitution, when adjusting and testing a part except a laser, the power supply to the laser device is stopped in case when the plug 7 has been detached, danger to the human body (especially eyes) is prevented, and also dead use of the laser device is obstructed. |
