Camera Module Anti-Shake Lens Rotation Mechanism

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The existing anti-shake stabilization systems in mobile phone cameras require a larger lens diameter to cover the imaging area during panning or tilting, leading to a bulky design.

Innovation Solution

A camera module with an anti-shake module that uses a combination of magnetic fields and drive coils to rotate and tune the lens module, allowing for image offset correction without changing the relative position between the lens and the photosensitive chip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the lens module uses panning or tilting to correct image offset, then the anti-shake stabilization function is achieved, but the lens diameter must be larger than the photosensitive chip size to cover the imaging area

Engineering Contradiction:

Improveanti-shake stabilization functionVSAvoidlens diameter

Core Design Contradiction:

ReliabilityVSLength of moving object

Solution Approach 1:

Instead of moving the lens to correct image offset, the patent inverts the approach by moving the photosensitive chip in the opposite direction of the shake. The driving component drives the photosensitive chip to move relative to the lens module, thereby correcting the image offset without requiring the lens to have a large diameter.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent replaces the traditional mechanical panning or tilting mechanism of the lens with a driving component that directly moves the photosensitive chip. This substitution eliminates the need for the lens to mechanically rotate or tilt, allowing for a smaller lens diameter while maintaining the anti-shake function.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Area of stationary object

If the lens diameter is increased to cover the imaging area during panning or tilting, then the imaging area coverage is ensured, but the overall size of the camera module increases

Engineering Contradiction:

Improveimaging area coverageVSAvoidcamera module size

Core Design Contradiction:

Area of stationary objectVSVolume of moving object

Solution Approach 1:

The patent inverts the traditional approach by keeping the lens stationary and moving the photosensitive chip instead. This inversion allows the lens diameter to be smaller than the photosensitive chip size, as the chip movement compensates for the shake, thereby reducing the overall camera module size while maintaining full imaging area coverage.

Inventive Principle:

Principle #13The other way round (Inversion)

3Reliability

If the lens is designed with a large diameter to cover the imaging area, then the imaging quality is maintained during shaking, but the internal structure of the electronic device becomes bulky

Engineering Contradiction:

Improveimaging quality during shakingVSAvoidinternal structure volume

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The patent inverts the conventional design by moving the photosensitive chip rather than the lens. This allows the lens to have a smaller diameter while maintaining imaging quality during shaking, as the chip movement compensates for the shake. Consequently, the internal structure of the electronic device becomes more compact.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent replaces the large-diameter lens mechanical design with a driving component that moves the photosensitive chip. This substitution maintains imaging quality during shaking while significantly reducing the volume of the internal structure, making the electronic device more compact.

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

This solution effectively corrects image offsets during shaking, enhancing imaging quality while maintaining a smaller lens diameter, thus optimizing the internal structure of electronic devices.

Implementation Method 1

a drive coil, configured to generate a magnetic field to drive the lens module to rotate around the rotating shaft

Methodology Applied

Scientific EffectMagnetic field: Magnetic Field

Data Source

PatentEP4124011B1Camera module and electronic device

Publication Date: 2025.06.04 VIVO MOBILE COMM CO LTD

Figure 1~2
Figure 3
Figure 4~5

AI summary

A camera module and an electronic device are disclosed. The disclosed camera module includes a lens module and an anti-shake module, where the anti-shake module includes an outer frame and a first drive component; the lens module is rotatably disposed inside the outer frame; the first drive component includes a first drive coil and a first magnetic element, where one of the first drive coil and the first magnetic element is disposed on the outer frame, and another of the first drive coil and the first magnetic element is disposed on the lens module; the first drive coil is located in a magnetic field of the first magnetic element; and in a case that the first drive coil is energized, the lens module is able to rotate relative to the outer frame.