Blur correcting device and lens barrel
AssigneeNikon Corporation
InventorKentaro Terao
Life of this patent
Estimating the term…
Abstract
A blur correcting device comprises: a blur correction optical system that corrects an image blur by moving along a direction substantially perpendicular to an optical axis; a locking member that locks the blur correction optical system when an image blur correction is not executed; and a lock drive device having an elongated external shape with a length thereof set along a direction in which a tangential line of a circle having a center thereof at the optical axis extends on a plane substantially perpendicular to the optical axis, which generates a drive force to drive the locking member.
Claims9
A blur correcting device comprising:
- a blur correction optical system that corrects an image blur by moving along a direction substantially perpendicular to an optical axis;
- a locking member that locks the blur correction optical system when an image blur correction is not executed;
- and
- a lock drive device having an elongated external shape with a length thereof set along a direction in which a tangential line of a circle having a center thereof at the optical axis extends on a plane substantially perpendicular to the optical axis, which generates a drive force to drive the locking member.
A lens barrel comprising:
- a photographic optical system;
- a blur correction optical system constituting at least part of the photographic optical system, which corrects a blur by moving along a direction substantially perpendicular to an optical axis;
- a locking mechanism that locks the blur correction optical system when a blur correction operation is not executed;
- and
- a locking actuator having an elongated external shape with a length thereof set along a direction in which a tangential line of a circle having a center thereof at the optical axis extends on a plane substantially perpendicular to the optical axis, which generates a drive force to drive the locking mechanism.
Dependencies are inferred from the claim text.