Lens barrel

Provided is a lens barrel whose diameter can be reduced. The lens barrel includes a rotary frame having a gear on an inner peripheral surface, and a retracting lens frame which holds a retracting lens configured to retract from an optical axis along with rotation of the rotary frame. A position wher...

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1. Verfasser: Koga Akira
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Provided is a lens barrel whose diameter can be reduced. The lens barrel includes a rotary frame having a gear on an inner peripheral surface, and a retracting lens frame which holds a retracting lens configured to retract from an optical axis along with rotation of the rotary frame. A position where the retracting lens retracts is where the gear of the rotary frame is located when the retracting lens is positioned on the optical axis. The rotary frame includes a first cam groove on an outer peripheral surface, and a second cam groove on the inner peripheral surface. The lens barrel also includes a first lens frame having a first cam follower which is mounted on the first cam groove, and a second lens frame having a second cam follower which is mounted on the second cam groove. The retracting lens frame is held by the second lens frame.