| 摘要 |
PURPOSE:To output light, which is supplied to one of 4 ports, from three other ports selectively by providing coaxially the first and second switch members, where five ports are arranged at equal intervals on a circle, freely relatively rotatably and connecting specific ports with optical fibers. CONSTITUTION:The first switch member A where the first-fifth ports to which optical fibers are connected are arranged in order at equal intervals on a circle and the second switch member B provided with the sixth-tenth ports facing the first-fifth ports respectively are coaxially provided freely relatively rotatably. The sixth-eighth ports and tenth ports are connected by an optical fiber respectively, and the optical fiber connected to the fourth port is introduced to the ninth port. |
