| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device capable of preventing deterioration in a conductive adhesive while permitting expansion and shrinkage of an electromechanical conversion element. <P>SOLUTION: The driving device 1 is provided with: a piezoelectric element 5; a drive shaft 6 attached on one end of a telescopic direction of the piezoelectric element 5; a lens frame frictionally engaging with the drive shaft 6; an FPC 7 for transmitting a driving signal to the piezoelectric element 5; and a conductive adhesive 8 for fixing and electrically connecting the piezoelectric element 5 to the FPC 7. In the driving device 1, since an insulating adhesive 9 is provided so as to cover the conductive adhesive 8, the conductive adhesive 8 can be prevented from deterioration due to ambient environment. Furthermore, although high conductivity of the adhesive causes a decrease in elasticity of the adhesive, since the conductivity of the insulating adhesive 9 is lower than that of the conductive adhesive 8, the elasticity thereof is high. Thus, even if an adhesive area of the piezoelectric element 5 is increased due to the insulating adhesive 9, the expansion/shrinkage of the piezoelectric element 5 is hardly inhibited. <P>COPYRIGHT: (C)2010,JPO&INPIT |
