| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving device capable of easily making driving frequency matching between a first piezoelectric element and a second piezoelectric element.SOLUTION: A driving device includes: a first piezoelectric element 6 causing thickness-shear vibration in a first direction; a first member 3b that vibrates along the first direction by being driven by the first piezoelectric element; a second piezoelectric element 7 that is supported by the first member and causes thickness-shear vibration along a second direction different from the first direction; a second member 3a that vibrates along the second direction by being driven by the second piezoelectric element; and a drive target body driven by the second member. A pore 36 is disposed in at least one of the first member and the second member. The pore is filled with a frequency adjustment member 37 set at a weight to adjust a difference between resonance frequency of the vibration of the first member and resonance frequency of the vibration of the second member. |
