Voice coil motor for driving lens group

Details Voice coil motor for driving lens group Voice coil motor for driving lens group

2010-03-29

2011-12-06

Leung, Quyen (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

C310S012310, C359S819000, C359S824000

Reexamination Certificate

active

08072099

ABSTRACT:
A voice coil motor includes a base, a shell, first and second magnetic members, a lens retainer, a coil of wire mounted on the retainer, first and second elastic members. The base includes a bottom and posts extending upwards from the bottom. The shell includes a top and sidewalls cooperatively defining a receiving space therein. The shell is mounted on the base with the posts being received in the receiving space. The first magnetic members are positioned on the bottom of the base, the second magnetic members are positioned on the top of the shell, and each two adjacent of the posts have one of the first magnetic members and one of the second magnetic members located therebetween. The first resilient member and a second resilient member each include fixing portions fixed to the posts, and a spring portion connected to retainer between the first and second magnetic members.

REFERENCES:
patent: 7391579 (2008-06-01), Ho et al.
patent: 7944631 (2011-05-01), Sata et al.

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