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US 12,585,078 B2Granted
Lens barrel and imaging device
AssigneeNikon Corporation
InventorsKoji Nagaoka, Takuji Hamasaki
Life of this patent
Estimating the term…
Abstract
A lens barrel having good optical performance, the lens barrel includes a first lens holding frame that holds a first lens, a first guide bar that guides the first lens holding frame in an optical axis direction, a contact member that is in contact with the first guide bar, and a biasing member that is in contact with the first lens holding frame and biases the contact member toward the first guide bar.
Claims20
A lens barrel comprising:
- a first lens holding frame that holds a first lens;
- a first guide portion that guides the first lens holding frame in an optical axis direction;
- a bearing that is pressed against the first guide portion and rotates with movement of the first lens holding frame;
- a biasing member that is in contact with the first lens holding frame and biases the bearing toward the first guide portion;
- and
- a second lens holding frame that holds a second lens that is arranged closer to an image side than the first lens,
- wherein when the first lens and the second lens come closer to each other, a part of the first lens holding frame is located closer to the image side than a surface closest to an object of the second lens in an optical axis direction, and
- wherein the biasing member is not in direct contact with the bearing.
5 more elements
Dependencies are inferred from the claim text.