Vibrator, ultrasonic motor, and optical device
AssigneeCanon Kabushiki Kaisha
InventorYasuhiro Tanaka
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Abstract
A vibrator includes a piezoelectric element including a piezoelectric ceramic having an electrode, a vibration plate, and an adhesive layer between the piezoelectric element and the vibration plate, wherein the adhesive layer is obtained by a resin containing 50 parts by mass or more and 80 parts by mass or less of organic particles having a number average particle size of 5 μm or more and 15 μm or less, relative to 100 parts by mass of the resin.
Claims10
A vibrator comprising:
- a piezoelectric element including a piezoelectric ceramic having an electrode;
- a vibration plate;
- and
- an adhesive layer between the piezoelectric element and the vibration plate,
- wherein the adhesive layer is obtained by a resin containing 50 parts by mass or more and 80 parts by mass or less of organic particles having a number average particle size of 5 μm or more and 15 μm or less, relative to 100 parts by mass of the resin.
A method for manufacturing a vibrator including a piezoelectric element including a piezoelectric ceramic having an electrode, a vibration plate, and an adhesive layer between the piezoelectric element and the vibration plate, the method comprising:
- applying an adhesive to the vibration plate;
- and
- providing an adhesive layer by curing the adhesive while pressurizing the piezoelectric element against a surface of the vibration plate to which the adhesive has been applied,
- wherein the adhesive is obtained by a precursor of a resin 1 containing 50 parts by mass or more and 80 parts by mass or less of organic particles having a number average particle size of 5 μm or more and 15 μm or less, relative to 100 parts by mass of the precursor of the resin.
Dependencies are inferred from the claim text.