Piezoelectric actuator device, image pickup unit and mobile...

Details Piezoelectric actuator device, image pickup unit and mobile... Piezoelectric actuator device, image pickup unit and mobile...

2011-04-19

2011-04-19

Stultz, Jessica T (Department: 2873)

Optical: systems and elements

Lens

With support

C359S694000, C359S696000, C359S822000

Reexamination Certificate

active

07929229

ABSTRACT:
An actuator device includes: a piezoelectric element; a weight secured to one end of the piezoelectric element along an expansion-contraction direction thereof; and a drive member secured to another end of the piezoelectric element. The piezoelectric element and the weight are in contact so as to have a spatial overlap with respect to the expansion-contraction direction of the piezoelectric element, and the center of gravity of the weight is positioned in the vicinity of a plane that contains a contact plane in which the piezoelectric element and the weight are in contact.

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