Camera Module Electro-Deformable Rotation Correction

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Solution Overview

Problem

Existing camera modules equipped with optical anti-shake assemblies cannot correct image smearing caused by rotation of the camera around its own optical axis, leading to blurry or ghosting issues in handheld shooting.

Innovation Solution

A camera module design that includes a lens assembly rotatably connected to a module bracket, with a first and second electro-deformable member on opposite sides of a limit member. These deformable members measure rotation angles and apply corrective voltages to restore the lens assembly to its initial position, effectively addressing rotation-induced image smearing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If an optical anti-shake assembly is equipped to correct image smear caused by camera movement in three dimensions, then the definition of images and videos is improved, but the device cannot resolve image smearing caused by rotation of the camera around its own optical axis

Engineering Contradiction:

Improveimage definitionVSAvoidanti-shake coverage

Core Design Contradiction:

Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The patent introduces a rotatable lens assembly that can dynamically adjust its orientation around the optical axis in response to detected rotation. The lens assembly is connected to the module bracket through a rotation mechanism that allows real-time angular adjustment, enabling the system to compensate for rotation-induced image smearing that static anti-shake assemblies cannot address.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent replaces traditional mechanical anti-shake mechanisms with an electro-deformable member-based system. The electro-deformable member converts electrical signals into mechanical deformation to adjust the lens assembly's position and orientation, enabling more precise and versatile anti-shake functionality that can handle both linear movement and rotation.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If the lens assembly is made rotatable to measure rotation angles using electro-deformable members, then rotation-induced image smearing is corrected, but the device complexity increases

Engineering Contradiction:

Improverotation correction capabilityVSAvoidcamera module structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The electro-deformable member serves multiple functions: it acts as both a sensor to detect rotation angles and an actuator to execute corrective movements. This multi-functionality reduces the need for separate sensing and actuation components, thereby limiting the increase in device complexity while achieving comprehensive rotation correction capability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the lens assembly with the rotation measurement and correction mechanism by directly integrating the electro-deformable member between the lens assembly and module bracket. This integration combines the rotational degree of freedom with the anti-shake functionality in a unified structure, reducing overall system complexity compared to separate independent mechanisms.

Inventive Principle:

Principle #5Merging (Combining)

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 camera module effectively measures and corrects rotation-induced image smearing, improving image quality by maintaining the relative position of the lens assembly with respect to the shot region, thus enhancing the anti-shaking performance.

Implementation Method 1

the first deformable member and the second deformable member are both electro-deformable members

Methodology Applied

Scientific EffectElectro-deformation:

Data Source

PatentUS12326651B2Electronic device and camera module thereof

Publication Date: 2025.06.10 VIVO MOBILE COMM CO LTD

AI summary

A camera module includes a lens assembly, a module bracket, a first limit member, a first deformable member, and a second deformable member. The lens assembly is rotatably connected to the module bracket. The first limit member is fastened to the lens assembly or the module bracket. The first and second deformable members are both electro-deformable members. The first and second deformable members are respectively disposed on two opposite sides of the first limit member. When the lens assembly rotates with respect to the module bracket along a first direction, the first deformable member deforms, so that a first rotation angle of the lens assembly is measured. When the lens assembly rotates with respect to the module bracket along a second direction, the second deformable member deforms, so that a second rotation angle of the lens assembly is measured, the second direction being opposite to the first direction.