公开(公告)号：US5175780A

公开(公告)日：1992-12-29

申请号：US698380

申请日：1991-05-09

申请人： Yasukazu Sano ,  Hideyuki Tanaka ,  Keijirou Nakamura ,  Hideo Kume ,  Kiyoshi Tanigawa

发明人： Yasukazu Sano ,  Hideyuki Tanaka ,  Keijirou Nakamura ,  Hideo Kume ,  Kiyoshi Tanigawa

IPC分类号： G02B6/35 ,  H03K17/94

CPC分类号： G02B6/3514 ,  H03K17/941 ,  G02B6/352 ,  G02B6/353 ,  G02B6/355 ,  G02B6/3552 ,  G02B6/3574

摘要： An optical switch having two spherical or elliptical corner-reflecting surfaces provided in a light-conducting member, a shutter to open and close a light path between the corner-reflecting surfaces, and focusing lenses to focus the incident beam from an emitting optical fiber and to focus the emitting beam from the light-conducting member to a primary receiving optical fiber. Because almost all the beam transmitted through the light-conducting member is focused at one point in an air gap in which the shutter moves, the optical switch can transmit the beam with high efficiency without leakage to the outside, and a small stroke of the shutter is sufficient to completely transmit or stop the beam. In another similar optical switch having a reflecting surface at the tip of the shutter for inclining the beam, as well as having a secondary receiving optical fiber aligned with the path of the inclined beam, the beam is switched to be transmitted to the primary receiving optical fiber or to the secondary receiving optical fiber according to the position of the shutter. Thus, the ON/OFF state of the optical switch can be indicated, or a transfer-type optical switch can be obtained by using the secondary receiving optical fiber as well as the primary receiving optical fiber as switching circuits.

摘要翻译： 一种具有设置在导光构件中的两个球面或椭圆形角反射面的光学开关，用于打开和关闭角部反射表面之间的光路的快门以及聚焦透镜，用于聚焦来自发射光纤的入射光束， 以将来自导光构件的发射光束聚焦到主接收光纤。 因为透过导光部件的光束几乎全部聚焦在快门移动的气隙中的一个点处，所以光开关可以高效率地传输光束而不泄漏到外部，并且快门的小行程 足以完全传输或停止光束。 在另一个类似的光开关中，其具有用于使光束倾斜的遮光器顶端处的反射表面，以及具有与倾斜光束的路径对准的次级光纤，光束被切换以传输到主接收光 光纤或根据快门的位置到次级接收光纤。 因此，可以指示光开关的ON / OFF状态，或者可以通过使用次级接收光纤以及主接收光纤作为开关电路来获得转移型光开关。