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Actuator Device

  • US 20050082946A1
  • Filed: 07/22/2004
  • Published: 04/21/2005
  • Est. Priority Date: 07/22/2003
  • Status: Active Grant
First Claim
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1. An actuator element comprising:

  • a plate member;

    a piezoelectric/electrostrictive body disposed in facing relation to said plate member; and

    a beam disposed between said plate member and said piezoelectric/electrostrictive body and fixing said piezoelectric/electrostrictive body to said plate member;

    said piezoelectric/electrostrictive body having a piezoelectric/electrostrictive layer, an upper electrode formed on a surface of said piezoelectric/electrostrictive layer which faces said plate member, and a lower electrode formed on a surface of said piezoelectric/electrostrictive layer which is opposite to the surface thereof facing said plate member;

    whereby when an electric field is applied to said upper electrode and said lower electrode, a portion of said piezoelectric/electrostrictive body is displaced toward or away from said plate member.

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