| 摘要 |
<p>The purpose of the present invention is to ensure linearity in the direction along the optical axis of a lens, and to reduce the size of a lens-driving device. To achieve the foregoing, a lens-driving device comprises: a lens unit; a reference member disposed at least in a region surrounding the lens unit from the periphery of the optical axis; two or more elastic members that are linked to the reference member, support the lens unit so that the unit is movable in the optical axis direction, and are separated from each other in the optical axis direction; and an actuator for applying force in the optical axis direction to cause the lens unit to move. In the lens-driving device, each of the elastic members is linked to a first linking part of the reference member, and extends toward a second linking part of the lens unit from the first linking part and is linked to the second linking part. If a peripheral space of the optical axis is partitioned into first through fourth spatial regions by two orthogonally-intersecting virtual planes which pass through the optical axis, the second linking part is arranged in the first spatial region, and the first linking part is arranged in the second spatial region, which is adjacent to the first spatial region.</p> |
