Patent ID: 7646134
Filing Date: 2010-01-12
Classification: G02B,H02N

Abstract:
1. A small thin film-movable element comprising: a movable portion elastically deformably supported and capable of being displaced in a first direction and a second direction reverse to the first direction; a first drive source that applies a physical acting force to the movable portion so that the movable portion performs a modulating or switching function by the first drive source; and a second drive source different from the first drive source, the second drive source increasing or reducing an absolute value of the physical acting force to restrain a vibration of the movable portion when the first drive source drives the movable portion to be displaced in the first direction, wherein the physical acting force from the first drive source, which is applied by an electrostatic force, causes a rotational displacement of the movable portion in the first and the second directions.