| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a lens drive mechanism and to reduce the cost thereof. SOLUTION: This lens drive mechanism having a lens group 1 is equipped with a holding frame 2 including the lens group advancing/retreating in an optical axis direction, a guide member 3 guiding the holding frame so as to advance/retreat in the optical axis direction, a rotation checking member 4 checking the rotation of the holding frame in a direction orthogonal to an optical axis with the guide member as center, a driving device for driving and controlling the lens group in the optical axis direction, and the members 5 and 6 for transmitting driving force from the driving device to the holding frame holding the lens group, and advances/retreats the lens group 1 in the optical axis direction. The driving force transmitting member 6 is provided with elastic shapes 6b and 6c generating elastic force in two directions, that is, the optical axis direction and the direction orthogonal to the optical axis as an elastic member for removing backlash in a thrust direction.
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