Patent ID: 7934875

Claim:
A method for arranging a flexible printed wiring board which electrically connects a plurality of optical elements that constitute an optical unit and arranged movable along an optical axis, to a control unit that controls the operation of the movable optical elements, in a lens barrel, the method comprising the steps of: providing the flexible printed wiring board comprising a first wiring section, a second wiring section, and a common wiring section which comprises a common wiring provided for both the first wiring section and the second wiring section connected to the control unit, the first wiring section comprises a first extension section extending from a common wiring section to a subject side in a state able to be fixed to a lens barrel, a first fixed section fixed to the lens barrel, a first bent turn back section extending to a subject side from the first fixed section and then turning back in a loop shape, and a first terminal to be connected to a first movable optical element of the optical unit is provided on an edge of the first bent turn back section; and the second wiring section comprises a second extension section extending from a common wiring section to a focusing side in a state able to be fixed to the lens barrel, a second fixed section fixed to the lens barrel, a second bent turn back section extending to an image focusing side from the second fixed section and then turning back in a loop shape, and a second terminal to be connected to a second movable optical element of the optical unit is provided on an edge of the second bent turn back section; and arranging the flexible printed wiring board to electrically connect at least the first movable optical element and the second movable optical element of the optical unit to the control unit.