| 摘要 |
PURPOSE:To prevent a lens from being moved in the optical axis direction and being inclined to this direction by interposing an energizing means between a lens barrel and a supporting member to energize the lens barrel to the guide face of a control member. CONSTITUTION:An annular space 5e is formed between an annular member 5 and a barrel 1, and a compression coiled spring S is provided in this space 5e to energize the barrel 1 toward a collar part 2a of a frame body 2. If the member 5 is pushed in the direction orthogonal to the optical axis by a cam 12 attached to a motor 11, parallel links 8 and 8 connected by a hinge 10 are moved in parallel, and the member 5 is moved not only in the direction orthogonal to the optical axis but also in the optical axis direction slightly in accordance with this parallel movement, but the lens barrel 1 is accurately guided by the collar part 2a and is moved only in the direction orthogonal to the optical axis because the lens barrel 1 is loosely fitted to the member and is pressed to the collar part 2a by the spring S. Consequently, the lens is prevented from being moved in the optical axis direction and from being inclined to this direction.
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