Patent ID: 8004773

Claim:
A lens drive mechanism, comprising: a drive source; a lead screw that is connected to the drive source and rotated by operation of the drive source; a nut member that screws on the lead screw and moves as the lead screw rotates; a lens hold portion that is so disposed as to move as the nut member moves and hold a lens; a guide member that guides the lens hold portion to move in the same direction as that of movement of the nut member; a leaf spring member that if the nut member is situated near one end of a thread portion of the lead screw, pressurizes the nut member toward the other end of the thread portion of the lead screw; an energizing member that energizes the lens hold portion toward the drive source, wherein the nut member is disposed closer to the drive source than the lens hold portion is, and the leaf spring member pressurizes the nut member situated near the one end of the thread portion of the lead screw which is close to the drive source, and wherein the drive source is provided with a first fixing portion that is used to fix the drive source on a base member, the spring member is provided with a second fixing portion that is used to fix the spring member on the base member, and the first fixing member and the second fixing member are fixed on the base member at the same position.