Patent ID: 6920696
Filing Date: 2005-07-26
Classification: H02N,Y10S

Abstract:
1. A microscopic positioning device comprising: a base member having first and second abutting faces; a movable member having first and second abutting faces; and at least one driving unit for driving said movable member to be positioned with respect to said base member, including a first piezoelectric element and a second piezoelectric element arranged along a straight line on which expanding/shrinking directions thereof are aligned, one end and the other end of said first piezoelectric element in the expanding/shrinking direction being fixed to the first abutting faces of said base member and said movable member, respectively, and one end of said second piezoelectric element in the expanding/shrinking direction being fixed to one of the second abutting faces of said base member and said movable member, and the other end of said second piezoelectric element being confronting the other of the second abutting faces of said base member and said movable member with a gap in between in unenergized states of said first and second piezoelectric elements.