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公开(公告)号：US10409026B2
公开(公告)日：2019-09-10
申请号：US15912931
申请日：2018-03-06
IPC分类号： G02B7/02 , G02B7/09 , H02K41/035 , G03B13/36 , G02B7/08
摘要： A lens driving device includes a movable part, a plate spring that movably supports the movable part, a coil provided on the movable part, and magnets facing the coil. An outer portion of the movable part includes protrusion opposing parts where first restricting protrusion and second restricting protrusions face each other in an optical axis direction and non-opposing parts where the first restricting protrusion and the second restricting protrusions do not face each other in the optical axis direction, the coil is formed by winding a conductor wire around the outer portion in a circumferential direction and includes first coil portions positioned in the protrusion opposing parts and second coil portions positioned in at least some of the non-opposing parts, and the width of the second coil portions in the optical axis direction is greater than the width of the first coil portions in the optical axis direction.
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公开(公告)号：US12085778B2
公开(公告)日：2024-09-10
申请号：US17341726
申请日：2021-06-08
发明人： Toshiyuki Tanaka
IPC分类号： G02B7/09 , G02B27/64 , G03B5/00 , G03B13/36 , H02K11/215 , H02K41/035
CPC分类号： G02B7/09 , G02B27/646 , G03B5/00 , G03B13/36 , H02K11/215 , H02K41/0356 , G03B2205/0007
摘要： A lens driving apparatus includes a housing; a lens holding member positioned in the housing for holding a lens body, a coil, a detection magnet, and a balance magnet; first and second magnetic field generating members facing each other across the coil and the lens holding member; the detection magnet for detecting a position of the lens holding member; a magnetic detection member facing the detection magnet; the balance magnet facing the detection magnet across an optical axis of the lens body; and first and second leaf springs conducted to the ends of the coil, movably supporting the lens holding member in the optical axis direction. The detection magnet is disposed closer to the first magnetic field generating member than to the second magnetic field generating member, and the balance magnet is disposed closer to the second magnetic field generating member than to the first magnetic field generating member.
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