Lens barrel and image pickup apparatus
AssigneeCanon Kabushiki Kaisha
InventorKenichi Katano
Life of this patent
Estimating the term…
Abstract
A lens barrel includes a first blade member, a second blade member provided at an object side of the first blade member and overlapped with at least part of the first blade member in an optical axis direction, a drive unit configured to perform an opening and closing drive of the first blade member and the second blade member, and a biasing member configured to apply a biasing force to the drive unit, the biasing member is disposed in a direction orthogonal to an optical axis with respect to the first blade member, and the biasing member is disposed so as to overlap with at least part of the second blade member in the optical axis direction during an opening and closing operation of the second blade member.
Claims10
A lens barrel comprising:
- a first blade member;
- a second blade member provided at an object side of the first blade member and overlapped with at least part of the first blade member in an optical axis direction;
- a drive unit configured to perform an opening and closing drive of the first blade member and the second blade member;
- and
- a biasing member configured to apply a biasing force to the drive unit,
- wherein the biasing member is disposed in a direction orthogonal to an optical axis with respect to the first blade member, and
- wherein the biasing member is disposed so as to overlap with at least part of the second blade member in the optical axis direction during an opening and closing operation of the second blade member.
An image pickup apparatus comprising:
- an image pickup element;
- and
- a lens barrel,
- wherein the lens barrel includes:
- a first blade member;
- a second blade member provided at an object side of the first blade member and overlapped with at least part of the first blade member in an optical axis direction;
- a drive unit configured to perform an opening and closing drive of the first blade member and the second blade member;
- and
- a biasing member configured to apply a biasing force to the drive unit,
- wherein the biasing member is disposed in a direction orthogonal to an optical axis with respect to the first blade member, and
- wherein the biasing member is disposed so as to overlap with at least part of the second blade member in the optical axis direction during an opening and closing operation of the second blade member.
Dependencies are inferred from the claim text.