Vibrating body and vibration wave actuator
AssigneeCanon Kabushiki Kaisha
InventorYutaka Maruyama
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Abstract
Provided are a vibrating body and a vibration wave actuator, which can suppress vibration attenuation along with a reduction in size with an inexpensive structure, to thereby improve vibration efficiency, and can output stable vibration energy. A vibrating body includes: a piezoelectric element including a piezoelectric layer and an electrode layer; a ceramic substrate to which the piezoelectric element is fixed; and a ceramic layer including the same main component as a main component of the ceramic substrate, which is provided between the piezoelectric element and the ceramic substrate, and the piezoelectric element is fixed to the ceramic substrate through intermediation of the ceramic layer.
Claims12
A vibrating body, comprising:
- a piezoelectric element comprising a first piezoelectric layer and an electrode layer;
- a ceramic substrate;
- and
- a ceramic layer comprising as a main component the same main component of the ceramic substrate,
- wherein the piezoelectric element is fixed to the ceramic substrate with the ceramic layer interposed between the piezoelectric element and the ceramic substrate,
- wherein the ceramic layer comprises glass,
- wherein the glass concentrates in an interface between the ceramic substrate and the ceramic layer and an interface between the ceramic layer and the piezoelectric element, and
- wherein the ceramic layer comprises at least one component which is different from components contained in the ceramic substrate.
Dependencies are inferred from the claim text.