| 摘要 |
PURPOSE:To physically stabilize an optical switch so as to improve the reliability of the switch by providing a cam mechanism which causes a driven member fixed to an optical switch element to make straight shuttling movement in the direction perpendicular to the optical axis and an energizing means which energizes the switch element in the direction of the driven member. CONSTITUTION:A straight advancing cam (cam mechanism) 21 having a displacement quantity equal to its moving stroke is provided above an elastic supporting member 19 and the cam 21 is provided with a cam 21a which moves in the length direction of a guide pin 13 and a driven cam 21b which is brought into contact with the cam 21a in a high-order contraposition state and moved in the direction perpendicular to the optical axis. The cam 21 is fitted to a mover 24 fixed to a pair of solenoid 22 and 23 through a compression coil spring 24a and the cam 21a is energized toward the driven member 21b. Therefore, this optical switch can be stabilized even when no energy is supplied and, accordingly, the reliability of the switch can be improved. |
