Patent ID: 7880951
Filing Date: 2011-02-01
Classification: B81B,G02B

Abstract:
1. A micro oscillating device comprising: at least one frame; an oscillating part including a first drive electrode to apply a reference electric potential; a connecting part to connect the frame and the oscillating part to each other, the connecting part defining an axis of an oscillating motion of the oscillating part; and a second drive electrode fixed to the frame and cooperating with the first drive electrode to generate a driving force for the oscillating movement; wherein the first drive electrode includes a first end extension and a second end extension separated from each other and extending in a direction crossing the axis, wherein the second drive electrode is within a separation distance between the first and the second end extensions, wherein the first drive electrode includes a plurality of electrode teeth extending from the first end extension toward the second end extension in parallel to each other at a space provided in a direction which the first end extension extends, the first drive electrode further including a plurality of electrode teeth extending from the second end extension toward the first end extension in parallel to each other at a space provided in a direction which the second end extension extends, and wherein the second drive electrode includes an arm extending along the first and the second end extensions, a plurality of electrode teeth extending from the arm toward the first end extension in parallel to each other at a space provided in a direction which the arm extends, and a plurality of electrode teeth extending from the arm toward the second end extension in parallel to each other at a space provided in the direction which the arm extends.