Patent ID: 8084920

Claim:
A drive apparatus including: a first transducer which generates elliptical vibration in a drive portion by application of predetermined frequency voltage thereto; a fixing member having a first holding portion for holding the first transducer; a first moving element having fixed thereto a first moving element portion to which the drive portion of the first transducer is pressed, a direction of movement of which is restricted to a first direction by a guiding portion of the fixing member, and which is driven by elliptical vibration of the first transducer to move in the first direction with respect to the fixing member; a second transducer which is held by a second holding portion provided in the first moving element and which generates elliptical vibration in a drive portion by application of predetermined frequency voltage thereto; and a second moving element having fixed thereto a second moving element portion to which the drive portion of the second transducer is pressed, a direction of movement of which is restricted to a second direction different from the first direction by a guiding portion of the first moving element, and which is driven by elliptical vibration of the second transducer to move in the second direction with respect to the first moving element; wherein the first transducer and the second transducer have substantially same resonant frequency and the first moving element portion and the second moving element portion differ in at least one of rigidity and density thereof.