Patent ID: 8965190
Filing Date: 2015-02-24
Classification: G02B,G03B,H04N

Abstract:
1. An optical image stabilizer, adapted to be used in an image capturing device, comprising: a magnetic element, directly fixed on a main body of the image capturing device; a moving platform, movably disposed on the main body, wherein a region of the moving platform is aligned to the magnetic element; at least a first sensor, fixed on the region of the moving platform, wherein when the moving platform moves relatively to the main body, the first sensor senses a variation of a magnetic force applied to the first sensor by the magnetic element for calculating a displacement of the moving platform along a first direction; and at least a second sensor, fixed on the region of the moving platform, wherein when the moving platform moves relatively to the main body, the second sensor senses a variation of a magnetic force applied to the second sensor by the magnetic element for calculating a displacement of the moving platform along a second direction, wherein the first direction is perpendicular to the second direction, and the first sensor senses the variation of the magnetic force applied by the magnetic element at the same time as the second sensor.