US Patent 7894113 Actuator, optical scanner, and image forming device
Patent 7894113 was granted and assigned to Seiko Epson on February, 2011 by the United States Patent and Trademark Office.
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An actuator includes: a first oscillatory system including a frame-shaped driving member and a pair of first axial members holding the driving member from both ends so as to allow the driving member to rotate around an X-axis; a second oscillatory system including a movable plate provided inside the driving member and a pair of second axial members holding the movable plate to the driving member from both ends so as to allow the movable plate to rotate around a Y-axis perpendicular to the X axis; and a driving unit including a permanent magnet provided on the driving member, a coil provided so as to face the permanent magnet, and a voltage applying unit applying a voltage to the coil.
US Patent 07894113 Actuator, optical scanner, and image forming device US Patent 7894113 Actuator, optical scanner, and image forming device
US Patent 07894113 Actuator, optical scanner, and image forming device
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