Patent ID: 8488005
Filing Date: 2013-07-16
Classification: H04N

Abstract:
1. An optical image stabilizer for a camera module, comprising: an upper housing; a lower housing; a printed circuit board having an image sensor; a lens frame having a camera lens retained within the lower housing; a first driver disposed in the vicinity of the lens frame for moving the lens frame in a first direction through deflection; a second driver disposed in the vicinity of the lens frame for moving the lens frame in a second direction perpendicular to the first direction through deflection; and a movement sensing controller provided within the lower housing for sensing the amount of movement of the lens frame on the basis of the magnitude of a shaking of the camera module, so as to control the lens frame, wherein the first driver comprises: a first drive element, whose center portion is attached to the lens frame, for moving the lens frame in a first direction through deflection, which is generated at the center portion of the first drive element as a power source is applied to the first drive element; a pair of slide parts provided at opposite ends of the first drive element; and a first guide bar engaged to a plurality of holes in the lower housing and slidably coupled with the pair of slide parts for guidably moving the pair of slide parts to generate the deflection of the first drive element.