Driving apparatus

Details Driving apparatus Driving apparatus

2007-07-31

2007-07-31

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S323020

Reexamination Certificate

active

11088369

ABSTRACT:
A driving apparatus of the invention is arranged to drive an optical lens according to expansion and contraction of an electromechanical transducer. The driving apparatus comprises a fixed member connected to one end of the electromechanical transducer in a direction of expansion and contraction; a friction drive shaft connected to the other end of the electromechanical transducer; a hinge fixedly provided relative to the optical lens; a first frictional connecting part fixedly provided relative to the optical lens; a second frictional connecting part which is movably provided relative to the hinge and grasps the frictional drive shaft in cooperation with the first frictional connecting part from a direction perpendicular to the expansion and contraction direction of the electromechanical transducer; and a spring mounted extending around the optical lens and pinch the first and the second frictional connecting parts between both ends of the spring.

REFERENCES:
patent: 5410206 (1995-04-01), Luecke et al.
patent: 5712524 (1998-01-01), Suga
patent: 5912527 (1999-06-01), Karrai
patent: 6188161 (2001-02-01), Yoshida et al.
patent: 6246157 (2001-06-01), Oliver et al.
patent: 6512321 (2003-01-01), Yoshida et al.
patent: 0 675 589 (1995-10-01), None

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