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US 2013/0258507 A1Published application
Lens barrel and cam mechanism
AssigneePanasonic Corporation
InventorsTETSUYA UNO, TAKUMI KUWAHARA
Life of this patent
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Abstract
A lens barrel includes an optical system for forming an optical image of an object, a first tube for supporting at least one lens included in the optical system, and a second tube disposed inside or outside the first tube. The first tube includes first cam grooves in the side surface thereof on which the second tube is disposed. The second tube includes first cam followers that engage with the first cam grooves.
Claims9
A lens barrel comprising:
- an optical system for forming an optical image of an object;
- a first tube for supporting at least one lens included in the optical system;
- and
- a second tube disposed one of inside and outside the first tube,
- wherein
- the first tube includes a first cam groove in a side surface thereof on which the second tube is disposed, and
- the second tube includes a first cam follower engaging with the first cam groove.
4 more elements
A cam mechanism comprising:
- a first tube including, in one of an outer side surface thereof and an inner side surface thereof,
- a first cam groove, and
- a first cam follower;
- and
- a second tube disposed on the one of the side surfaces of the first tube, the second tube including
- a second cam groove engaging with the first cam follower, and
- a second cam follower engaging with the first cam groove.
4 more elements
A lens barrel comprising:
- an optical system for forming an optical image of an object;
- a first tube for supporting at least one lens included in the optical system;
- and
- a second tube disposed one of inside and outside the first tube,
- wherein
- one of the first tube and the second tube includes a cam groove;
- the other of the first tube and the second tube includes a cam follower engaging with the cam groove;
- the first tube includes a first projection protruding toward the second tube;
- the second tube includes a second projection protruding toward the first tube;
- the first tube includes a first wall formed along a moving track of the second projection that moves when the cam follower moves along the cam groove;
- and
- the second tube includes a second wall formed along a moving track of the first projection that moves when the cam follower moves along the cam groove.
9 more elements
Dependencies are inferred from the claim text.