US Patent Application 20090206698 - Vibration device, antidust device, camera, vibration device inspection method, method for manufacturing vibration device and vibration method
InventorAssigneeUS Classes310/317, Input circuit for mechanical output from piezoelectric element310/330, Bending type359/892, With support or frame324/727Piezoelectric crystal testing (e.g., frequency, resistance)Attorney, Agent or FirmForeign Documents
International ClassesH01L 41/09H01L 41/053 G02B 5/20 G01R 29/22 Issued Patent Number:8125120Abstract textA vibration device comprising; a vibrator which generates bending vibration on a predetermined member, a controller which controls a driver to drive the vibrator, wherein; the vibrator comprises a plurality of driving electrodes electrically insulated respectively, the controller controls the driver to make phases of driving signals respectively output to the plurality of driving electrodes changeable relatively and adjust an order of the bending vibration. |
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