| 摘要 |
PURPOSE:To reduce a loss of the quantity of light in the branching part, by connecting the respective ends to each other in the branching part of a light guide, by use of an optical fiber bundle. CONSTITUTION:An optical fiber bundle 10 is made to branch into plural parts in accordance with the number of branching hollow members 3, 4 on the way. And, the base end side part 11 of the fiber bundle concerned 10 is airtightly installed and fixed to the tip opening of the base end side part 8 of the hollow member 2. Also, the branching optical fiber bundle parts 12, 13 are airtightly installed and fixed to the base end opening of the branching hollow members 3, 4. The optical fiber bundle 10 is made to branch is Y-shape. Also, each end part 11a, 12a, 13a of the fiber bundle concerned 10 is fitted into the hollow member 2, respectively, and also is solidified with an adhesive agent. The inside of the hollow member 2 is filled with a transparent liquid 14.... |
