Patent ID: 7720370

Claim:
A lens barrel used for an imaging device capable of converting an optical image of an object into an electrical image signal, the lens barrel comprising: an imaging optical system for forming the optical image of the object; a focus lens unit which is included in the imaging optical system and capable of changing an object distance by moving in a direction parallel to an optical axis of the imaging optical system; a moving unit for moving the focus lens unit in the direction parallel to the optical axis; a driving unit for driving the moving unit; a first operating member which is of a cylindrical shape coaxial to the optical axis of the imaging optical system and manually operated in a rotational manner in order to drive the driving to thereby move the focus lens unit by the moving unit; a second operating member which is integrally provided in the first operating member; and a biasing unit for biasing the second operating member in an outward direction of the first operating member, wherein: when the second operating member is depressed in an inward direction of the first operating member, the second operating member allows the first operating member to be manually rotated from a rotating range to another rotating range, and when the second operating member is not depressed in the inward direction of the first operating member, the second operating member prevents the first operating member from being manually rotated from a rotating range to another rotating range.