Patent ID: 7455465
Filing Date: 2008-11-25
Classification: G02B,G03B

Abstract:
1. An optical system apparatus, comprising: a lens barrel including a plurality of lenses, wherein the lens barrel is configured to be moved between (1) a stored position in which the plurality of lenses are collapsed, and (2) a photographing position in which the plurality of lenses are aligned along an optical axis of said apparatus and extended towards an object to be photographed, and wherein the lens barrel includes a retractable lens configured to be aligned coaxially with said plurality of lenses on said optical axis in the photographing position, wherein, in the collapsed position, said retractable lens is configured to retract to a position out of said optical axis through a side of the lens barrel; a lens barrier configured to cover at least a front side of a lens of the plurality of lenses, the lens being closest to the object to be photographed when the lens barrel is at the stored position; a barrier driving unit configured to move the lens barrier between a closed position and an opened position for retracting the lens barrier out of an operation space of the lens barrel; and a barrier control member configured to prevent the lens barrier from moving to the closed position from the opened position when said lens barrel is in the photographing position, said barrier control member being movable along a direction parallel to said optical axis, said barrier control member being biased, and said barrier control member including a control portion configured to contact the lens barrel when the lens barrel reaches the stored position such that the control portion retracts the barrier control member from a path of the lens barrier.