Television – Camera – system and detail – Optics
Reexamination Certificate
2011-01-11
2011-01-11
Aggarwal, Yogesh K (Department: 2622)
Television
Camera, system and detail
Optics
C348S335000, C348S373000, C348S374000, C348S375000, C348S351000
Reexamination Certificate
active
07868942
ABSTRACT:
A driving device and an image pickup apparatus including the driving device capable of reliably detecting a vibration state of a vibrated member even when a piezoelectric element including as a control circuit an H-bridge circuit which contributes miniaturization of the circuit is employed are provided. In this driving device, a single piezoelectric member including a first driving electrode and a vibration detection electrode on a first side and a second driving electrode and a ground electrode on a second side is attached to an optical low-pass filter serving as the vibrated member so as to vibrate the optical low-pass filter. Furthermore, the vibration detection electrode is used to detect the vibration status of the optical low-pass filter.
REFERENCES:
patent: 7006138 (2006-02-01), Kawai
patent: 7215372 (2007-05-01), Ito
patent: 2004/0047625 (2004-03-01), Ito et al.
patent: 2008/0297641 (2008-12-01), Urakami
patent: 2008/0297646 (2008-12-01), Urakami et al.
patent: 1462145 (2003-12-01), None
patent: 2000-166265 (2000-06-01), None
Aggarwal Yogesh K
Canon Kabushiki Kaisha
Canon U.S.A. Inc. I.P. Division
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