Patent ID: 8947577
Filing Date: 2015-02-03
Classification: G02B,G03B,H04N

Abstract:
1. A barrel assembly comprising: a barrel; at least one lens group disposed in the barrel to move in an optical axis direction; an aperture disposed in the barrel that adjusts an amount of light passing through the at least one lens group; and a light adjustment unit disposed in the barrel to move in the optical axis direction and that blocks light passing through a peripheral area of the at least one lens group when the at least one lens group is in at least one part of a travel section along which the at least one lens group moves in the barrel; wherein the light adjustment unit comprises: a movable unit having a through hole for passing light and disposed in the barrel to move in the optical axis direction; and a wing unit movably coupled to the movable unit to adjust an opening area of the through hole by protruding toward the through hole when the movable unit is located in the at least one part of the travel section in the barrel.