Piezoelectric actuator
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United States of America Patent
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-
Oct 27, 1992
Grant Date -
N/A
app pub date -
Oct 18, 1991
filing date -
Oct 18, 1991
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A piezoelectric actuator includes a pair of piezoelectric members which are oriented to shear laterally toward each other in the presence of an applied voltage. A hinge having translational members (which act similarly to a rack) and a rotating member (which acts similarly to a pinion) is attached to the top of the piezoelectric members with one translational attached to a respective one of the piezoelectric members. A driven member attached radially outward from the rotating member will then move through an arc when the piezoelectric members laterally shear. An object, such as a mirror, when carried by the distal end of the driven member, will then be actuated.
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