Patent ID: 8498070
Filing Date: 2013-07-30
Classification: G02B,G03B

Abstract:
1. A voice coil motor, comprising: an outer shell having a through hole defined therein and comprising a plurality of sidewalls surrounding the through hole, a top tab integrally formed with the sidewalls in a manner that the top tab extends inwards toward the through hole and is substantially perpendicular to the sidewalls, and a plurality of first protrusions formed on the top tab; a fastening member comprising a plurality of first engaging holes formed therein; a first elastic member sandwiched between the top tab and the fastening member, and supported by and in contact with the top tab, the first elastic member having a plurality of second engaging holes formed therein, the first protrusions extending through and engaging in the first and second engaging holes; a plurality of magnetic members mounted on the inside of the sidewalls, respectively; a base; a second elastic member fixed on the base; and a movable assembly comprising a retainer and a coil of wire wrapped therearound, the retainer connected to the first and second elastic members, the magnetic members and the coil of wire configured for cooperating to drive the movable assembly to move in the outer shell.