| 摘要 |
An optical apparatus having a movable lens barrier and a lens movable in the direction of an optical axis is provided with a barrier moving mechanism for moving the lens barrier in the direction of opening or closing. The barrier moving mechanism includes a moving member which is arranged to move in the direction of the optical axis and also around the optical axis in association with a movement of the lens. The lens barrier is arranged to be move in the direction of opening or closing by a movement of the moving member based on the movement of the lens to a specific position.
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