Vibration actuator, lens barrel and camera

Details Vibration actuator, lens barrel and camera Vibration actuator, lens barrel and camera

2009-02-05

2011-10-11

Budd, Mark (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S323030

Reexamination Certificate

active

08035276

ABSTRACT:
A vibration actuator with good driving performance, and a lens barrel and camera equipped therewith, is provided. There is provided a vibration actuator comprising: an electromechanical conversion element that is excited by a driving signal; a vibrating body including a joining face, to which the electromechanical conversion element is joined, and a driving face, at which a vibration wave is produced by the excitation; and a relative motion member that is pressingly touched against the driving face, is driven by the vibration wave, and relatively moves with respect to the vibrating body, wherein at a first and a second portion of the electromechanical conversion element in a direction parallel to the joining face and orthogonal to a direction of the relative movement of the vibrating body and the relative motion member, thickness in a direction orthogonal to the joining face differs between the first portion and the second portion.

REFERENCES:
patent: 4484099 (1984-11-01), Kawai et al.
patent: 4678956 (1987-07-01), Izukawa et al.
patent: 4788468 (1988-11-01), Izukawa et al.
patent: 4829209 (1989-05-01), Kawasaki et al.
patent: 5172023 (1992-12-01), Kawai et al.
patent: 5256928 (1993-10-01), Nishikura et al.
patent: 5554906 (1996-09-01), Takagi
patent: 6628046 (2003-09-01), Seki
patent: A-3-273874 (1991-12-01), None

Affiliated with

Also associated with

Rating

Vibration actuator, lens barrel and camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibration actuator, lens barrel and camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration actuator, lens barrel and camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4255305