| 摘要 |
PURPOSE:To facilitate connecting operation by holding two fibers to be connected on fiber fixing bases, irradiating them with ligh at right angles to the axes of the fibers and observing the cores of the fibers through a microscope, and moving one fiber fixing base and aligning the fibers to each other. CONSTITUTION:Light sources 11 and 12 for lighting are provided on the (x) and (y) axes perpendicular to the (z) axis of fibers so as to observe the cores of fibers in the (x)-axial and (y)-axial directions, and the microscope 31 having an objective lens 13 and an ocular lens 14 is placed opposite to the light sources 11 and 12 across the fibers. When the fibers are observed from the state of transmitted light, the external boundaries 16 of the fibers and the boundaries 17' of the cores are discriminated because the cores have a little bit larger refractive index in the fibers. For the purpose, a fixing base 4 is moved in the (x)-axial and (y)-axial directions by necessary extents so that the center positions 18 and 19 of the cores of both fibers are aligned to each other, thus aligning the core axes. Then, the cores are observed directly to the center positions of the cores coincident with each other precisely. |
