Lens barrel, lens apparatus and image pickup apparatus
AssigneeCanon Kabushiki Kaisha
InventorTadanori Okada
Life of this patent
Estimating the term…
Abstract
A lens barrel including: a base lens barrel; and a lens holding frame configured to hold a lens and be movably held in an optical axis direction relative to the base lens barrel, in which the base lens barrel has a first contact surface, and the lens holding frame has a second contact surface, in which the first contact surface and the second contact surface abut on each other in an image pickup state and separate from each other in the optical axis direction in a retracted state, in which the lens barrel includes a biasing member configured to bias the base lens barrel and the lens holding frame in a different direction from the optical axis direction such that the first contact surface and the second contact surface abut on each other.
Claims14
A lens barrel comprising:
- a base lens barrel;
- and
- a lens holding frame configured to hold a lens and be movably held in an optical axis direction relative to the base lens barrel,
- wherein the base lens barrel has a first contact surface, and the lens holding frame has a second contact surface,
- wherein the first contact surface and the second contact surface abut on each other in an image pickup state and separate from each other in the optical axis direction in a retracted state,
- wherein the lens barrel comprises a biasing member configured to bias the base lens barrel and the lens holding frame in a different direction from the optical axis, and
- wherein a component of the bias of the biasing member in the optical axis direction biases the base lens barrel and the lens holding frame such that the first contact surface and the second contact surface abut on each other.
A lens apparatus having a lens barrel, wherein the lens barrel comprising:
- a base lens barrel;
- and
- a lens holding frame configured to hold a lens and be movably held in an optical axis direction relative to the base lens barrel,
- wherein the base lens barrel has a first contact surface, and the lens holding frame has a second contact surface,
- wherein the first contact surface and the second contact surface abut on each other in an image pickup state and separate from each other in the optical axis direction in a retracted state,
- wherein the lens barrel comprises a biasing member configured to bias the base lens barrel and the lens holding frame in a different direction from the optical axis, and
- wherein a component of the bias of the biasing member in the optical axis direction biases the base lens barrel and the lens holding frame such that the first contact surface and the second contact surface abut on each other.
An image pickup apparatus comprising:
- a lens apparatus;
- and
- an image pickup element for picking up an image formed by a lens barrel, wherein the lens barrel comprises:
- a base lens barrel;
- and
- a lens holding frame configured to hold a lens and be movably held in an optical axis direction relative to the base lens barrel,
- wherein the base lens barrel has a first contact surface, and the lens holding frame has a second contact surface,
- wherein the first contact surface and the second contact surface abut on each other in an image pickup state and separate from each other in the optical axis direction in a retracted state,
- wherein the lens barrel comprises a biasing member configured to bias the base lens barrel and the lens holding frame in a different direction from the optical axis, and
- wherein a component of the bias of the biasing member in the optical axis direction biases the base lens barrel and the lens holding frame such that the first contact surface and the second contact surface abut on each other.
Dependencies are inferred from the claim text.