Patent ID: 8774615

Claim:
A lens barrel comprising: a first barrel configured to be movable in an optical axis direction and having a cam formed on an inner periphery thereof, said first barrel being moved in the optical axis direction in a case where the lens barrel is switched from a collapsed state to a shooting state; a lens holding member configured to hold a lens, said lens holding member including a fitting portion for being slidably fitted to the cam and being capable of moving in the optical axis direction relative to said first barrel, following the cam; a barrier member disposed on an object side of the lens configured to be capable of being opened and closed; a barrier driving member connected to said lens holding member and configured to be rotatable so as to open and close said barrier member, a second barrel; and an urging member attached to said barrier driving member and configured to urge said lens holding member and said barrier driving member in a predetermined direction, wherein rotation of said barrier driving member causes said lens holding member to move in the optical axis direction relative to said first barrel, and wherein in a case where the lens barrel is in the collapsed state, said second barrel rotates said lens holding member and said barrier driving member in a direction against an urging force of said urging member.