Patent ID: 9438093
Filing Date: 2016-09-06
CPC Classification: G02B,G03B,H02K

Claim Text:
1. A VCM (Voice Coil Motor) comprising: a bobbin accommodated by a lens; a coil block arranged at a periphery of the bobbin; a base formed with an opening and a first foreign object penetration prevention unit formed along an upper edge; magnets wrapping the coil block; a housing formed with a second foreign object penetration prevention unit coupled to the first foreign object penetration prevention unit; and an elastic member coupled to the bobbin to elastically support the bobbin, wherein the first foreign object penetration prevention unit is protruded at the upper edge of the base, and the second foreign object penetration prevention unit is formed at a bottom surface of the housing in the shape of concave groove coupled to the first foreign object penetration prevention unit.