A folded module includes a housing having an internal space and including a protruding wall protruding in a direction perpendicular to an optical axis direction; a rotation holder including a reflective member, and supported by an internal wall of the housing with a rotation plate interposed therebetween to be disposed in the internal space; and a stopper coupled to the protruding wall of the housing, and limiting movement of the rotation holder in an optical axis direction, and the stopper includes a separation prevention structure.