| 摘要 |
PROBLEM TO BE SOLVED: To prevent the damage of a lens when a barrier blade cannot be opened, with high accuracy and to suppress reduction in the strength of a lens holding frame.SOLUTION: A lens barrel (110) is a lens barrel displaced between an extended state and a collapsed state by moving a lens group in an optical axis direction and comprises: barrier blades (3 to 5) opened and closed in a direction crossing an optical axis; a barrier driving member (2) including a driving part and an extension part which are extended in the optical axis direction; a barrier holding member (1) holding the barrier driving member; and a lens holding member (8) which includes a lens holding part holding a lens closest to an object side in the lens group and in which a groove part having a depth on the side of an imaging element and a contact part projected to the object side rather than the groove part are formed on the outer circumference of the lens. When the barrier blades are in a closed state, the extension part (2b) and the contact part (8d) are positioned to face each other. When the barrier blades are in an opened state, the extension part and the contact part are positioned not to face each other. |
