Patent ID: 8564892

Claim:
A lens barrel comprising: a lens frame configured to support a lens group having an optical axis; a guide shaft having a guide axis, the guide shaft being disposed parallel to the optical axis of the lens group and inserted into the lens frame; a lead screw disposed parallel to the optical axis; a nut threaded onto the lead screw; and a biasing member configured to urge the lens frame toward the nut in a position away from the lead screw, the lens frame including a first bearing component and a second bearing component, the first component having a first insertion hole into which the guide shaft is inserted, the second bearing component having a second insertion hole into which the guide shaft is inserted, the guide shaft being configured to contact an inner peripheral face of the first insertion hole at a first contact point and a second contact point by an urging force of the biasing member, the guide shaft being further configured to contact an inner peripheral face of the second insertion hole at a third contact point and a fourth contact point by the urging force of the biasing member, and the first contact point and the second contact point being disposed opposite to the third contact point and the fourth contact point with a parallel plane located in-between as a reference, the parallel plane being disposed along the direction of the optical axis and passing through the guide axis of the guide shaft.