Collapsible-type lens barrel and image sensing apparatus with withdrawing blur correction lenses
AssigneeCanon Kabushiki Kaisha
InventorYosuke Fukai
Life of this patent
Estimating the term…
Abstract
A collapsible-type lens barrel includes an image blurring correction unit that drives a first lens in a plane orthogonal to an optical axis so as to cancel shaking of an image sensing apparatus, and a second lens placed adjacent the image blurring correction unit. When the collapsible-type lens barrel is in the collapsed state, the image blurring correction unit causes the first lens to withdraw to a position away from the optical axis of the second lens, and causes the second lens to retract in such a manner that a portion of the second lens enters at least part of a space on the optical axis produced by the withdrawal of the first lens.
Claims10
A retractable-type lens barrel, comprising:
- an image blurring correction unit that drives a first lens in a plane orthogonal to an optical axis so as to cancel shaking of an image sensing apparatus;
- and
- a second lens placed adjacent said image blurring correction unit;
- wherein said image blurring correction unit is adapted to withdraw the first lens, in a motion orthogonal to the optical axis, to a position away from the optical axis of said second lens, such that the second lens may enter at least part of a space on the optical axis produced by the withdrawal of the first lens.
A method of controlling a collapsible retractable-type lens barrel having an image blurring correction unit that drives a first lens in a plane orthogonal to an optical axis so as to cancel shaking of an image sensing apparatus, and a second lens placed adjacent the image blurring correction unit, said method comprising the steps of:
- causing the first lens of the image blurring correction unit to withdraw, in a motion orthogonal to the optical axis, to a position away from the optical axis of the second lens in the retracted state of the retractable-type lens barrel;
- and
- causing the second lens to retract in such a manner that a portion of said second lens enters at least part of a space on the optical axis produced by the withdrawal of the first lens.
Dependencies are inferred from the claim text.