OPTICAL FIBER GUIDING-IN DEVICE

摘要

PURPOSE:To perform stable operation for a long time by preventing dust from sticking or being deposited in a guide-in pipe. CONSTITUTION:A guide-in pipe 7 which guides an optical fiber 2 and a filter 4 in a metallic pipe 16 is vibrated longitudinally by an ultrasonic vibrating means 9 to prevent the dust which sticks on the optical fiber 4 and is mixed with the filler from sticking or being deposited on the internal surface of the guide-in pipe. Further, the flowability of the filler which heats the guide-in pipe 7 and passes in it is increased to prevent the dust mixed with the filler from sticking on the guide-in pipe.