| 摘要 |
PROBLEM TO BE SOLVED: To achieve miniaturization and improved reliability of the operation of a movable section. SOLUTION: The lens unit includes: a lens barrel 11 in which an imaging optical system is disposed; the movable section 49 having a movable lens and moved in the direction of its optical axis in relation to the lens barrel; an actuator 65 for moving the movable section in the direction of the optical axis; pressing plate springs 35 and 40 which include holding parts 36 and 42, 42 holding the movable section, a plurality of spring parts 37, 37 to 43, 43 elastically deformable and pressing the movable section in the direction of the optical axis, and attached parts 38, 38 to 44, 44 attached to the lens barrel, and the thickness directions of which coincide with the direction of the optical axis. The plurality of spring parts of the pressing plate springs restrict the moving force of the movable section within a plane perpendicular to the optical axis. COPYRIGHT: (C)2006,JPO&NCIPI
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