Patent ID: 7625140

Claim:
A light shielding device of a lens, comprising: a movable barrel which moves in an optical axis direction; an outer member positioned around said movable barrel; and a light shield ring for preventing ambient light from entering said lens through a clearance between said movable barrel and said outer member, said light shield ring having a center opening through which said movable barrel is movably fitted and a self-centering annular portion provided around said center opening, wherein said self-centering annular portion is in contact with an outer cylindrical surface of said movable barrel and is bent by and along the outer cylindrical surface of the movable barrel, and wherein said light shield ring is biased against an annular part of said outer member by a biasing member, so that said light shielding ring is movable in a radial direction when a radial force is applied to said light shielding ring via said movable barrel and said self-centering annular portion.