US Patent 11175474 Lens barrel

A lens barrel includes a plurality of lens moving frames configured to move in an optical axis direction, a drive unit provided to each of the plurality of lens moving frames and configured to move a corresponding one of the plurality of lens moving frames in the optical axis direction, an iris unit configured to move in an integrated manner with a first lens moving frame among the plurality of lens moving frames, and a flexible printed circuit board connected to the iris unit, wherein the flexible printed circuit board is disposed on one side of sides divided by a plane passing through an optical axis, and the drive unit is disposed on other side of the sides divided by the plane passing through the optical axis.