Lens barrel and optical apparatus
AssigneeCanon Kabushiki Kaisha
InventorTomoki Hasegawa
Life of this patent
Estimating the term…
Abstract
A lens barrel includes a first moving barrel, a second moving barrel disposed on an object side and an outer circumference side of the first moving barrel and configured to hold an optical element different from a lens, a guide barrel that has a first rectilinear groove that guides a movement of the first moving barrel, and a second rectilinear groove that guides a movement of the second moving barrel in the optical axis direction, and a cam barrel rotatable relative to the guide barrel and having a first cam groove and a second cam groove. The first moving barrel includes a first protruding member engaged with the first rectilinear groove and the first cam groove. The second moving barrel includes a second protruding member engaged with the second rectilinear groove and the second cam groove.
Claims10
A lens barrel comprising:
- a first moving barrel configured to hold a lens unit;
- a second moving barrel disposed on an object side and an outer circumference side of the first moving barrel and configured to hold an optical element different from a lens;
- a guide barrel that has a first rectilinear groove that guides a movement of the first moving barrel in an optical axis direction of the lens unit in the first moving barrel, and a second rectilinear groove that guides a movement of the second moving barrel in the optical axis direction;
- and
- a cam barrel rotatable relative to the guide barrel and having a first cam groove and a second cam groove,
- wherein the first moving barrel includes a first protruding member engaged with the first rectilinear groove and the first cam groove, and
- wherein the second moving barrel includes a second protruding member engaged with the second rectilinear groove and the second cam groove.
An optical apparatus comprising:
- a lens barrel;
- and
- an imaging element,
- wherein the lens barrel includes:
- a first moving barrel configured to hold a lens unit;
- a second moving barrel disposed on an object side and an outer circumference side of the first moving barrel and configured to hold an optical element different from a lens;
- a guide barrel that has a first rectilinear groove that guides a movement of the first moving barrel in an optical axis direction of the lens unit in the first moving barrel, and a second rectilinear groove that guides a movement of the second moving barrel in the optical axis direction;
- and
- a cam barrel rotatable relative to the guide barrel and having a first cam groove and a second cam groove,
- wherein the first moving barrel includes a first protruding member engaged with the first rectilinear groove and the first cam groove, and
- wherein the second moving barrel includes a second protruding member engaged with the second rectilinear groove and the second cam groove.
Dependencies are inferred from the claim text.