Patent ID: 8643964
Filing Date: 2014-02-04
Classification: G02B,H02K

Abstract:
1. A lens driving device without permanent magnet for movably supporting a lens assembly along a direction of an optical axis of a lens, said lens driving device comprising: an actuator base disposed to a lower side of the direction of said optical axis; a lens holder disposed to an upper side of said actuator base, said lens holder having a tubular portion for holding said lens assembly, said lens holder being made of a ferromagnet; a ring-shaped driving coil fixed to said lens holder so as to be positioned around the tubular portion; a yoke covering said lens holder so as to be apart from said driving coil and to oppose to said lens holder in a state where said driving coil is sandwiched therebetween; and a guide arrangement guiding said lens holder along the direction of the optical axis.