公开(公告)号：US10012817B2

公开(公告)日：2018-07-03

申请号：US15077271

申请日：2016-03-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Koji Idemitsu ,  Hironori Honsho ,  Masahiro Inata

IPC: G02B7/04 ,  G02B7/10 ,  G03B3/10

CPC classification number: G02B7/10 ,  G03B3/10

Abstract: A lens barrel in the present disclosure includes: a lens frame; a movable lens held in the lens frame; a guide member that moves the lens frame in a first direction; a driver including a drive coil and a magnet that move the lens frame with electric power being supplied to the driver; a drive circuit that drives the driver; and a switching circuit that short-circuits ends of the drive coil when the drive circuit is in a non-energized state.