Vibrating device and internal vibrating body

An internal vibrating body with a first end connected in a first direction to a piezoelectric element configured to generate vibration, a second end connected in the first direction to a light transmission body including an optical axis extending along the first direction, and an external vibrating body is positioned on an outer side of the internal vibrating body in a second direction intersecting the first direction, the internal vibrating body comprising:

• a base connectable to the light transmission body in the first direction and connectable to the external vibrating body in the second direction;
• and
• a first portion that extends in a direction away from the light transmission body along the first direction from the base,
• wherein at least one of the base and the first portion includes a convex portion that protrudes in the second direction from the base or the first portion, respectively.

An internal vibrating body having a first end connected in a first direction to a piezoelectric element configured to generate vibration, and a second end connected in the first direction to a light transmission body that includes an optical axis extending along the first direction, and that is surrounded by an external vibrating body that is positioned on an outer side in a second direction intersecting the first direction, the internal vibrating body comprising:

• a base connectable to the light transmission body in the first direction and connectable to the external vibrating body in the second direction;
• a first portion that extends in a direction away from the light transmission body along the first direction from the base;
• and
• a rigid portion that is provided at at least one of the base and the first portion,
• wherein a rigidity of the base or the first portion is higher than a rigidity of the external vibrating body.