| 摘要 |
PURPOSE:To improve the mounting density of reflectors by using a bimorph as a driving source of a driving device for switching the optical path of incident light beams and supporting reflectors by parallel springs. CONSTITUTION:The device is provided with the 1st port group 2 for making plural light beams incident upon a prescribed plane, the 2nd port group 3 for emitting the incident light beams, the 3rd port group 4 for making plural beams incident from a direction rectangular to the incident light beams radiated from the port group 2, the 4th port group 5 for emitting the incident light beams, plural reflectors 7 to be optionally moved in parallel to reflect the incident light beams obtained from the port groups 2, 4 in the rectangular direction and emit them from the port groups 3, 5, and driving devices 8a-8d for moving the reflectors 7. The respective reflectors 7 are individually moved in parallel by the devices 8a-8d to change the optical path of incident light beams. At the movement of the reflectors 7, the devices 8a-8d impress voltages to the bimorphs 17 to bent a plate body 16 and a moving board 14 mounting the reflectors 7 is moved in the other direction by the exciting force based upon said bend and the restoration force of the parallel springs. |
