| 摘要 |
PURPOSE:To improve the mounting density of reflectors and to reduce the size of a device by forming a plunger unitedly with a positioning mechanism in a driving device for switching an optical path for incident light beams. 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 maing plural light beams incident from a direction rectangular to the incident light beams from the port group 2 to a prescribed plane, the 4th port group 5 for emitting the incident light beams, plural reflecting bodies 7a-8d to be optionally moved in the vertical direction to reflect the incident light beams 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 reflecting bodies 7a-7d. The reflecting bodies 7a-7d are individually moved by the movable part of the plunger and stopped with high reproducibility to change the optical path of incident light. The devices 8a-8d are positioned on prescribed positions by positioning means by straight moving their movable parts, and if the movable parts are moved in different directions, they are stopped on prescribed positions by stopping means. |
