US 2013/0156411 A1 · OPTICAL IMAGE STABILIZER AND IMAGE CAPTURING DEVICE

Abstract

An optical image stabilizer includes a magnetic element, a moving platform, at least one first sensor and at least one second sensor. The magnetic element is fixed on a main body. The moving platform is movably disposed on the main body. The first and the second sensors are fixed on the moving platform. 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 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. The first direction is perpendicular to the second direction. In addition, an image capturing device having the optical image stabilizer is also provided.

Claims10

Dependent claims

An optical image stabilizer, adapted to be used in an image capturing device, comprising:

a magnetic element, 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, 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, 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.

2 more elements

An image capturing device, comprising:

a main body;
and
an optical image stabilizer, comprising:
a magnetic element, fixed on the main body;
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, 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, 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.

5 more elements

Dependencies are inferred from the claim text.

Optical image stabilizer and image capturing device

Life of this patent

Optical image stabilizer and image capturing device

Life of this patent

Abstract

Claims10