Patent ID: 9571709
Date: 2017-02-14
CPC Classifications: B06B,B08B,G02B,G03B,H04N

Claim:
1. A dust removing device, comprising: a piezoelectric device in a form of a plate including a piezoelectric material in a form of a plate and a pair of planar electrodes disposed to be opposed to each other on surfaces of said piezoelectric material; and a vibrating plate, wherein a first planar electrode of said pair of planar electrodes is bonded to a plate surface of said vibrating plate, wherein said piezoelectric material is polarized parallel to a plane of said first planar electrode or in a direction inclined by not more than 10° with respect to the plane of said first planar electrode, wherein a second planar electrode of said pair of planar electrodes is for fixing to a base, and wherein said piezoelectric device generates a thickness-shear vibration for displacing said first planar electrode and said second planar electrode from each other.