Vibrating device and image equipment having the same
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United States of America Patent
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May 15, 2012
Grant Date -
Jul 1, 2010
app pub date -
Dec 21, 2009
filing date -
Dec 26, 2008
priority date (Note) -
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Abstract
A vibrating device includes a drive unit configured to drive a vibrating member to produce vibration Z (x, y) at a dust-screening member, the vibration being expressed as follows:
where Z (x, y) is vibration at a given point P (x, y) on the dust-screening member, m and n are positive integers including 0, indicating the order of natural vibration corresponding to a vibrational mode,
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