| 摘要 |
PURPOSE:To prevent mismatching of arrangement in the jacket and to make the transmission picture bright, by forming sections of the core of the insulated conductor as well as the clad of the image fiber into hexagons. CONSTITUTION:The core base metal which is so cut that the section is formed into a hexagon is inserted into the pipe-shaped clad base metal and is heated to make these base metals in one body, and they are subjected to wire drawing at a low temperature to form an optical fiber insulated conductor. Many optical fiber insulated conductors formed in this manner are bundled and are inserted into the jacket, and this jacket is subjected to wire drawing to make optical fiber insulated conductors in one body, thereby forming image fiber 3. In the figure, 3a, 3b, 3c, and 3d are the optical fiber insulated conductor, the jacket, the core, and the clad respectively. |
