Auto focus control apparatus for camera module

Details Auto focus control apparatus for camera module Auto focus control apparatus for camera module

2006-04-07

2009-08-04

Blackman, Rochelle-Ann J (Department: 2862)

Photography

With exposure objective focusing means, focusing aid, or...

Lens drive circuit or motor structure

C396S075000, C348S340000, C348S342000, C348S345000, C359S824000, C359S826000

Reexamination Certificate

active

07570880

ABSTRACT:
A miniaturized auto focus control apparatus for camera module includes: a sensor assembly having an image sensor mounted to a printed circuit board and an infrared filter provided on an upper portion of the image sensor; a lens housing to which a plurality of permanent magnets mounted to an upper portion of the sensor assembly are mounted; a coil mounted into the lens housing; a lens barrel to which a plurality of focus control lenses are mounted in the direction of an optical axis; a lens guide portion integrally provided in the lens housing and engaged on the outer side of the lens barrel to guide the lens barrel so that the lens barrel is moved linearly upward and downward in the direction of the optical axis according to electric fields of the coil and the permanent magnets.

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