发明名称 LENS DRIVE DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a lens drive device capable of suppressing the rattling of a movable body moving in the optical axis direction and suppressing the tilting of the movable body when the movable body moves in the optical axis direction.SOLUTION: In a lens drive device 1, a drive mechanism 5 for driving a movable body 3 comprises: a magnet 17 for driving fixed to the movable body 3; and a coil 16 for driving fixed to a fixed body 4. The fixed body 4 includes a guide member 12 for guiding the movable body 3 in the optical axis direction, a guide member 13 for preventing the rotation of the movable body 3 about the guide member 12, and a cover member 10 made of a magnetic material and covering the outer peripheral side of the movable body 3. A magnet 9 for biasing is attached to the movable body 3. The movable body 3 moves along the guide members 12, 13 in the optical axis direction while being biased, by a magnetic attraction force generated between the magnet 9 for biasing and the cover member 10, in one direction on a virtual straight line SL connecting the shaft center C1 of the guide member 12 and the shaft center C2 of the guide member 13 when viewed from the optical axis direction.
申请公布号 JP2013148699(A) 申请公布日期 2013.08.01
申请号 JP20120008758 申请日期 2012.01.19
申请人 NIDEC SANKYO CORP 发明人 HAMADA YOSHIHIRO;WAIDE TATSUKI
分类号 G02B7/04 主分类号 G02B7/04
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