Lens barrel, shooting device, camera, information terminal device and image input device

Abstract

PROBLEM TO BE SOLVED: To provide a lens barrel capable of suppressing an operation sound when a zoom lens is driven while retracting a retracting lens group to the outside with respect to an internal diameter of a fixed cylindrical part.SOLUTION: A lens barrel 10 includes: a movable lens barrel holding a plurality of lens holding frames, each of which holds a plurality of lens groups, inside that is held inside of a fixed cylindrical part 21a so as to move in a collapsed state and a photographic state; the plurality of lens holding frames, each of which brings all lens groups to a photographic position so as to be aligned on the same photographic optical axis in the photographic state; and a retracting lens holding frame (31) being movable and holding retracting lenses so as to retract the retracting lenses toward a retracting position outside of the fixed cylindrical part 21a in the collapsed state. The lens barrel 10 further comprises: a movable lens barrel driving source (51) for operating the movable lens barrel; and a retracting frame driving source (52) for moving the retracting lens holding frame (31) between the photographic position and the retracting position. The retracting lens holding frame (31) is driven forward and backward along the photographic optical axis OA direction by driving force through the movable lens barrel driving source (51) in the photographic position.

Description

technical field [0001] The present invention relates to a lens barrel in which the lens group is contracted in one form and extended to a predetermined position in another form for use, and to an imaging device, a camera, a portable information terminal device, and an imaging device equipped with the lens barrel. Image input device. Background technique [0002] Imaging devices such as digital still cameras and digital video recorders (hereinafter referred to as digital cameras) are required to have higher portability along with improvements in imaging performance. For this reason, the photographing device is configured such that, when not photographing, at least a part of the lens groups retracts into the camera frame while withdrawing from the photographing position on the photographing optical axis, so that the distance between the lens groups is smaller than that required for photographing. The distance is reduced as much as possible, and when taking pictures, at least ...

AI Technical Summary

Problems solved by technology

For this reason, when the lens barrel is driven to zoom, the movable lens barrel is driven by the driving source for the movable lens barrel to move in the direction of the photographing optical axis, and at the same time, the driving source for the withdrawal frame is used to drive the withdrawing lens holding frame to move in the photographing direction. The driving source drives at the same time, causing the action sound to become louder

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