Photosensitive Chip Stabilization With Electromagnetic Drive

Solution Overview

Problem

Existing anti-shake solutions for handheld electronic devices often have complex structures and generate small forces, which are inefficient in stabilizing images during hand movement.

Innovation Solution

An electromagnetic driving module is used to move the photosensitive chip module within a plane parallel to the lens body, allowing for anti-shake functionality with a simpler and more compact structure that generates greater force.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If lens anti-shake is used, then image stabilization is achieved, but structure becomes complex and force is limited

Engineering Contradiction:

Improveimage stabilizationVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Instead of moving the lens to achieve anti-shake, this patent moves the photosensitive chip in the opposite direction to compensate for hand shaking. This inversion of the traditional approach simplifies the structure while maintaining effective image stabilization.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent replaces the mechanical lens driving system with an electromagnetic driving module that directly drives the photosensitive chip. This substitution reduces mechanical complexity while generating sufficient force for stabilization.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If lens anti-shake is used, then image stabilization is achieved, but force generated is small

Engineering Contradiction:

Improveimage stabilizationVSAvoidanti-shake force

Core Design Contradiction:

ReliabilityVSForce

Solution Approach 1:

The patent replaces the mechanical lens driving system with an electromagnetic driving module that directly drives the photosensitive chip. This substitution reduces mechanical complexity while generating sufficient force for stabilization.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the mass parameter by moving the photosensitive chip (which has greater mass than the lens) instead of the lens. This parameter change enables the generation of larger anti-shake force while maintaining effective image stabilization.

Inventive Principle:

Principle #35Parameter changes

3Device complexity

If photosensitive chip is moved within a plane parallel to lens body, then structure becomes simple and compact, but anti-shake effectiveness must be maintained

Engineering Contradiction:

Improvestructure simplicityVSAvoidanti-shake effectiveness

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

Instead of moving the lens to achieve anti-shake, this patent moves the photosensitive chip in the opposite direction to compensate for hand shaking. This inversion of the traditional approach simplifies the structure while maintaining effective image stabilization.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent replaces the mechanical lens driving system with an electromagnetic driving module that directly drives the photosensitive chip. This substitution reduces mechanical complexity while generating sufficient force for stabilization.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution provides effective image stabilization by enabling the photosensitive chip module to move in a plane perpendicular to the lens axis, enhancing stability and clarity with a more robust anti-shake mechanism.

Implementation Method 1

the electromagnetic driving module is used to drive the photosensitive chip module to move within a plane parallel to the lens body

Methodology Applied

Scientific EffectElectromagnetic force: Lorentz Force

Data Source

PatentEP4175276B1Photographing apparatus, electronic device, and control method for photographing apparatus

Publication Date: 2025.10.15 VIVO MOBILE COMM CO LTD

Figure 1
Figure 2
Figure 3

AI summary

This application discloses a photographing apparatus, an electronic device, and a control method of a photographing apparatus. The photographing apparatus includes: a base; a lens module, a photosensitive chip module, and a driving module, where the lens module is mounted on the base, the lens module is fixedly arranged relative to the base, and the lens module includes a lens body; the photosensitive chip module is mounted on the lens module, the photosensitive chip module is located on a side of the lens body that is close to the base, the photosensitive chip module is movable within a first plane, and the first plane is parallel to the lens body; and the driving module is separately connected to the base and the photosensitive chip module, the driving module is an electromagnetic driving module, the driving module is electrically connected to the photosensitive chip module, and the driving module drives the photosensitive chip module to move within the first plane for anti-shake.