US 12,461,331 B2
Lens barrel and camera equipped with same
Fumio Shinano, Osaka (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Oct. 28, 2022, as Appl. No. 17/975,726.
Claims priority of application No. 2022-088662 (JP), filed on May 31, 2022.
Prior Publication US 2023/0384555 A1, Nov. 30, 2023
Int. Cl. G02B 7/08 (2021.01); G02B 7/02 (2021.01); G02B 9/60 (2006.01)
CPC G02B 7/08 (2013.01) [G02B 7/022 (2013.01); G02B 9/60 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A lens barrel that is attached to a camera body in a replaceable state, the lens barrel comprising:
a mounting unit to which a teleconverter is mounted;
a retractable lens frame that includes an optical lens that interferes in an optical axis direction when the teleconverter is mounted;
a substantially cylindrical cam frame that encloses the retractable lens frame and has a cam groove;
a cam pin that protrudes in a direction intersecting the optical axis direction and that is configured to move in the optical axis direction in a state of being engaged with the cam groove formed in the cam frame;
a cam pin holder that is provided to the retractable lens frame in a state of being capable of relative motion in the optical axis direction, and that holds the cam pin;
a first guide shaft that is disposed along the optical axis direction and is configured to allow the retractable lens frame to move in the optical axis direction; and
an urging spring that is provided to the retractable lens frame, is configured to urge the cam pin holder toward a subject side in the optical axis direction, and expand or contract when the teleconverter is mounted to the mounting unit so as to retract the retractable lens frame in the optical axis direction.