Differential type piezoelectric actuator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 21, 2001
Grant Date -
N/A
app pub date -
May 23, 2000
filing date -
May 24, 1999
priority date (Note) -
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Importance
Abstract
The differential type piezoelectric actuator comprises: a drive body having a unitary block of two piezoelectric element blocks and a base block formed from a material constituting the piezoelectric element blocks; and a support spring fixed to free ends in the longitudinal direction of the two piezoelectric element blocks, wherein a differential displacement obtained by expansion and contraction of the two piezoelectric element blocks generates a rotary movement of a tip end of the support spring.
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