Lg Innotek Co., Ltd.

Kyoungho Yoo

Seungki Kim

SeongMin Lee

Sangok Park

Sangjun Min

Taemin Ha

Taejin Jung

Jinsuk Han

A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.

Voice coil motor

Disclosed is a voice coil motor, the motor including a rotor having a cylindrical bobbin that has a support block protruding from an upper end of an outer circumference thereof and a coil block that is coupled to the outer circumference of the bobbin in a direction from a lower surface to an upper surface of the bobbin and is supported by the support block, a stator having a magnet facing the coil block and a yoke holding the magnet, elastic members coupled to upper and lower surfaces of the bobbin, respectively, a base supporting the stator and the elastic members, and a foreign substance inflow-prevention portion formed on an upper surface of the base in such a way as to protrude around an opening formed in a central portion of the base in a shape of a closed loop.

A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a magnet fixing member disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.

A camera shutter device and an optical apparatus having the same are disclosed. The camera shutter device includes a pair of cores, each wrapped by a coil and having a distal end facing the other, wherein each coil is formed at the distal end with an electromagnetic force line generating unit. A magnet comprising a first magnet and a second magnet is interposed between the pair of cores. The magnet linearly and reciprocally moves in a direction perpendicular to the electromagnetic force line generating unit, and a slider opens and shuts a shutter blade as the magnet linearly and reciprocally moves, whereby miniaturization and thinning of the shutter device can be realized, and an opening/shutting operation can be stably performed.

Growing community of inventors

Seoul, South Korea

Kyoungho Yoo