Actuator, optical scanner, and image forming apparatus

Details Actuator, optical scanner, and image forming apparatus Actuator, optical scanner, and image forming apparatus

2011-01-25

2011-01-25

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S224100, C359S213100

Reexamination Certificate

active

07876484

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 generating a magnetic field on the ferromagnetic; and a positioning portion that places the ferromagnetic member or the coil symmetrical with respect to an intersection point of the X and Y-axes.

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