Voice coil module

Details Voice coil module Voice coil module

2007-01-09

2010-02-16

Stultz, Jessica T (Department: 2873)

Optical: systems and elements

Lens

With support

C359S811000, C359S819000, C359S822000, C359S823000

Reexamination Certificate

active

07663824

ABSTRACT:
The present invention relates to a voice coil module (VCM), and more particularly, to a VCM used for lens fixation and displacement measurement in order to prevent and control power consumption. Accordingly, in the VCM, power is not additionally consumed in order to maintain a specific position of the lens in a state that a focus of the lens is adjusted. Further, the lens is not moved and an optical axis is not distorted when a vibration occurs while an image is captured. Furthermore, the lens can be accurately controlled by measuring the present position of the lens.

REFERENCES:
patent: 5289318 (1994-02-01), Sekine et al.
patent: 5610885 (1997-03-01), Takahashi
patent: 5900995 (1999-05-01), Akada et al.
patent: 08-094904 (1996-04-01), None
patent: 08-115526 (1996-05-01), None
International Search Report for corresponding to PCT/KR2007/000136 dated May 21, 2007.
Written Opinion of the International Searching Authority for corresponding to PCT/KR2007/000136 dated May 21, 2007.

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