The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2009
Filed:
Mar. 07, 2008
Yasushi Mizoguchi, Chino, JP;
Hirokazu Yamaga, Chino, JP;
Yasushi Mizoguchi, Chino, JP;
Hirokazu Yamaga, Chino, JP;
Seiko Epson Corporation, , JP;
Abstract
An actuator includes: a first vibration system including a driving member having a frame shape, and a pair of first axial members each one end of which supports the driving member so as to allow the driving member to rotate about an X-axis; a second vibration system including a movable plate provided inside the driving member, and a pair of second axial members each one end of which supports the movable plate so as to allow the movable plate to rotate about a Y-axis perpendicular to the X-axis; a driving unit including a ferromagnetic member, a coil acting a magnetic field on the ferromagnetic member and a voltage applying unit applying a voltage to the coil, either one of the ferromagnetic member and the coil being disposed at a position on the driving member apart from each of the X and Y axes in a plan view of the movable plate; and a positioning portion that is disposed to the driving member and determine a fixing position of the ferromagnetic member or the coil with respect to the driving member. The movable plate rotates about each of the X and Y-axes by the voltage applying unit applying a voltage to the coil.