Vibrating device

A vibrating device, comprising:

• a substantially tubular internal vibrator extending in a first direction;
• a piezoelectric element connected to a first end portion of the substantially tubular internal vibrator in the first direction;
• a light-transparent body connected to a second end portion of the substantially tubular internal vibrator in the first direction and having an optical axis extending in the first direction;
• and
• a substantially tubular external vibrator surrounding the substantially tubular internal vibrator and extending in the first direction,
• wherein the substantially tubular external vibrator includes:
• a first connector connected to the light-transparent body,
• a cylinder portion connected to the first connector and extending in the first direction, and
• an attenuator extending from the cylinder portion in a direction away from the light-transparent body in a second direction intersecting with the first direction,
• wherein the cylinder portion is spaced from the substantially tubular internal vibrator in the second direction, and
• wherein at least one of the attenuator or the cylinder portion has nonaxisymmetry with respect to the optical axis.