Patent ID: 7443620
Filing Date: 2008-10-28
Classification: G02B

Abstract:
1. A lens barrel unit comprising: an actuator for positioning a driving member that is linearly movable along a driving shaft; a first moving member which is movably supported and linked to a lens; a second moving member which is movably supported; a first force-applying member that applies a force to said first moving member in a direction so as to cause said first moving member to contact said driving member, thus causing said first moving member to follow linear movement of said driving member; a first restricting member that contacts said first moving member, thus limiting movement of said first moving member in the direction of the force applied by said first force-applying member, and hence isolating said first moving member from said driving member; a second force-applying member that applies a force to said second moving member in a direction so as to cause said second moving member to contact said driving member, thus causing said second moving member to follow linear movement of said driving member; and a second restricting member that contacts said second moving member, thus limiting movement of said second moving member in the direction of the force applied by said second force-applying member, and hence isolating said second moving member from said driving member, wherein the direction of the force applied by said first force-applying member and the direction of the force applied by said second force-applying member are opposite relative to said driving member.