| 摘要 |
PROBLEM TO BE SOLVED: To suppress backlashes of an optical member, without fail, regardless of its attitude. SOLUTION: A lens device has a movable lens frame 201, disposed inside a lens barrel 101 so as to be movable in the direction of an optical axis and includes: an inclination part 401 forming at least part of the internal surface of the lens barrel 101 and inclined to the optical axis in the direction of the optical axis; and an attitude-holding member 402, that has a contact portion held in the movable lens frame 201 and projecting toward the inclined portion 401, and that brings the contact portion into contact with the inclined part 401, thereby a pressing force is applied, with which the movable lens frame 201 and the inclination part 401 are separated from each other. COPYRIGHT: (C)2010,JPO&INPIT
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