Optical unit with shake correction function having magnetic driving mechanism and flexible printed circuit board

An optical unit with shake correction function, comprising:

• an optical element;
• a rotation member that includes:
• a circuit board on which an imaging element arranged on a counter object side of the optical element is mounted, and
• a rotational member to which the circuit board is fixed;
• a fixation member that is arranged on the counter object side of the rotational member;
• a rotation supporting mechanism that supports the rotational member such that the rotational member is able to rotate relative to the fixation member;
• a rolling magnetic driving mechanism that causes the rotational member to rotate on an optical axis of the optical element;
• a supporting member that is arranged on the counter object side of the fixation member;
• and
• a first flexible printed circuit board that is connected to the circuit board,
• wherein the first flexible printed circuit board includes:
• a first circuit board portion that extends from the circuit board toward the counter object side;
• a second circuit board portion that is fixed to the supporting member;
• and
• a connection part that connects the first circuit board portion to the second circuit board portion,
• wherein the connection part is wound more than a half turn in a circumferential direction with respect to the optical axis of the optical element, and
• wherein the connection part has one end and the other end in the circumferential direction that are at an identical position with regard to a height in an optical axis direction.