Lens barrel having retractable lens, and image pickup apparatus

摘要

A lens barrel which is capable of retracting a retractable lens group by a simple construction and realizing stable image quality. The lens barrel has a lens, a first lens holding member that holds the lens, a second lens holding member that holds the first lens holding member and moves in a direction of an optical axis in conjunction with the first lens holding member, a drive mechanism that moves the first lens holding member between a shooting position on the optical axis and a retracted position outside the optical axis, and a first guide bar and a second guide bar. The drive mechanism retracts the first lens holding member from the shooting position to the retracted position while holding the second lens holding member on the optical axis. The first and second guide bars guide the second lens holding member in the direction of the optical axis.

主权项

1. A lens barrel comprising:
a lens; a first holding member configured to hold said lens; a second holding member configured to hold said first holding member and be movable in a direction of an optical axis in conjunction with said first holding member; a drive mechanism configured to move said first holding member between a shooting position on the optical axis and a retracted position outside the optical axis; and a first guide bar and a second guide bar configured to support said second holding member; a third holding member configured to have said first guide bar and said second guide bar fixed thereto and be movable in the direction of the optical axis; and an urging member configured to urge said second holding member toward said third holding member, wherein said drive mechanism retracts said first holding member from the shooting position to the retracted position while holding said second holding member on the optical axis, said first guide bar and said second guide bar guide said second holding member in the direction of the optical axis, and at the time of shifting from a shooting state into a retracted state, said third holding member moves toward an image plane, and said drive mechanism retracts said first holding member from the shooting position to the retracted position in a state where said second holding member is urged toward said third holding member by said urging member.