US 7,443,620 B2 · Lens barrel unit and imaging apparatus

Abstract

There are provided a lens barrel unit and an imaging apparatus in which a plurality of constituent elements can be driven using a linear driving mechanism. The lens barrel unit 6 comprises: an actuator 31 for positioning a driving member 40 that is linearly movable along a driving shaft 39; a movably supported first moving member 33 that is linked to a lens 13; a movably supported second moving member 36; a first force-applying member 34 that applies a force to the first moving member 33 in a direction to cause the first moving member 33 to contact the driving member 40, thus causing the first moving member 33 to follow linear movement of the driving member 40; a first restricting member 70 that limits movement of the first moving member 33, thus isolating the first moving member 33 from the driving member 40; a second force-applying member 37 that applies a force to the second moving member 36 in a direction to cause the second moving member 36 to contact the driving member 40, thus causing the second moving member 33 to follow linear movement of the driving member 40; and a second restricting member 28a that limits movement of the second moving member 36, thus isolating the second moving member 33 from the driving member 40, wherein the direction of the force applied by the first force-applying member 34 and the direction of the force applied by the second force-applying member 37 are opposite.

Claims10

Dependent claims

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.

6 more elements

Dependencies are inferred from the claim text.

Lens barrel unit and imaging apparatus

Life of this patent

Lens barrel unit and imaging apparatus

Life of this patent

Abstract

Claims10