Patent ID: 7832945
Filing Date: 2010-11-16
Classification: G02B,G03B

Abstract:
1. A lens barrel, comprising: a telescopic cylinder including at least one movable cylinder, said telescopic cylinder being configured to be accommodated in a fixed cylinder; at least one movable lens retained in said at least one movable cylinder, an optical axis of said at least one movable lens determining a reference axis of said lens barrel; and a retractable lens configured to be retracted in a plane perpendicular to said reference axis from a photographing position on said reference axis to a retracted position off said reference axis, wherein, in a photographing state, said retractable lens is adjacent to said at least one movable lens, and said at least one movable lens and said retractable lens are coaxially aligned along said reference axis, and a movement of the retractable lens to the reference axis from the retracted position is initiated immediately after the at least one movable cylinder of the at least one movable lens reaching a maximum protruded position.