Imaging device including a blur correcting mechanism for reducing the radial load on movable connectors

摘要

An imaging device includes an optical system including optical elements, an image sensor, a lens barrel movable relative to a device body to move the optical elements along an optical axis, a fixed element, a movable element on which the image sensor is mounted, a drive mechanism to generate a drive force by flowing an electric current into a magnetic field, to move the movable element relative to the fixed element, and movable connectors each including a bar element and a bearing provided in the fixed element and the movable element provided to movably support the bar element along the axis. The bar elements of the movable connectors are set to move in different directions along the plane orthogonal to the optical axis. At least one of the bearings is disposed outside the lens barrel in the orthogonal direction relative to the optical axis.

主权项

1. An imaging device comprising:
an optical system including one or more optical elements; an image sensor to obtain an image of a subject formed by the optical system; a lens barrel in which the optical elements are mounted, and being movable relative to a device body to move the optical elements along an optical axis; a fixed element at a fixed position in the device body in an orthogonal direction relative to the optical axis; a movable element on which the image sensor is mounted, and being movable relative to the fixed element along a plane vertical to the optical axis; a drive mechanism to generate a drive force by flowing an electric current into a magnetic field, to move the movable element relative to the fixed element; and two or more movable connectors each including a bar element provided in one of the fixed element and the movable element and a bearing provided in the other of the fixed element and the movable element to movably support the bar element along an axis of the bar element, wherein the bar elements of the movable connectors are set to move in different directions from each other along the plane orthogonal to the optical axis; at least one of the bearings is disposed outside the maximal diameter of the lens barrel in the orthogonal direction relative to the optical axis; and the movable connectors are disposed so that a straight line connecting the bearings of two of the movable connectors comes near the gravity center of the movable element and is approximately parallel to a direction of a first drive force generated by the drive mechanism and applied to the two movable connectors.