| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a shake correction mechanism which improves controllability of a spring member to achieve power saving. Ž<P>SOLUTION: The shake correction mechanism 10 includes: a movable part 30 that can move in a direction perpendicular to an optical axis L; a fixed part 40 that is fixed; and a spring member 70 that energizes the movable part and the fixed part. The movable part and the fixed part include spring pegs 32 and 43 that are provided along in the direction perpendicular to the optical axis L. The spring peg has a groove part 90 curved inside in a first radius on a first cross section passing through a line extending in the direction perpendicular to the optical axis and parallel with an optical axis. The groove part is curved to project to the outside in a second radius R2 on a second cross section orthogonal to the first cross section, parallel with the optical axis L and passing its bottom 91B. Locking parts 72 and 73 of the spring member are locked on the spring pegs of the movable part and the fixed part. The first radius is length obtained by adding a first predetermined amount α to 1/2 of a wire diameter d of the spring member, and the second radius is length obtained by subtracting a second predetermined amount β from 1/2 of an inside diameter D of the locking part of the spring member. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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