Actuator, optical scanner and image forming apparatus
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United States of America Patent
Stats
-
Sep 17, 2013
Grant Date -
May 2, 2013
app pub date -
Dec 12, 2012
filing date -
Sep 8, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An actuator includes a mass section; a support section; a coupling section for coupling the mass section rotatably to the support section so as to support the mass section with cantilever structure; and a pair of driving sources including a piezoelectric element for rotating the mass section, wherein the pair of driving sources are provided separately from each other with respect to a central axis of rotation of the mass section, each of the driving sources is provided slidably with respect to the coupling section or the support section, and the actuator is structured such that it causes the pair of piezoelectric elements to expand and contract in phases opposite to each other, so as to rotate at least a part of the coupling section while torsionally deforming the mass section.
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Cited Art Landscape
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