Camera Module Suspension Assembly for Compact Optical Stabilization
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Solution Overview
Problem
Existing camera module driving mechanisms fail to achieve miniaturization while providing effective optical image stabilization, which is essential for modern electronic devices like smartphones.
Innovation Solution
An optical system comprising a fixed assembly, a movable part, and a suspension module with a first and second suspension assembly, utilizing elastic members and magnetic elements to generate restoring forces that quickly return the movable part to a stable state, enabling miniaturization and effective optical image stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the camera module is miniaturized, then the size is reduced, but the shockproof performance deteriorates
Solution Approach 1:
The camera module is divided into separate functional components: a fixed assembly housing and a movable part containing the optical module. This segmentation allows independent optimization of each part, enabling miniaturization while maintaining shockproof performance through the suspension module design.
Solution Approach 2:
The suspension module including elastic members and magnetic elements provides beforehand cushioning by generating restoring forces that counteract shocks before they can damage the optical module. This pre-configured protection mechanism ensures shockproof performance is maintained even in the miniaturized structure.
2Reliability
If a driving mechanism is added for optical image stabilization, then the stabilization function is improved, but the device complexity increases
Solution Approach 1:
The suspension module merges multiple functions into a single integrated structure: it provides mechanical suspension, generates restoring forces through elastic members, and incorporates magnetic elements for additional stabilization. This merging reduces overall device complexity while maintaining effective optical image stabilization.
Solution Approach 2:
The movable part serves multiple functions simultaneously: it holds the optical module, provides suspension through the elastic members, responds to magnetic forces for stabilization, and moves to counteract camera shake. This multi-functionality eliminates the need for separate driving mechanisms, reducing complexity while maintaining stabilization performance.
3Volume of moving object
If the camera module is miniaturized, then the electronic device size is reduced, but the image quality during impact deteriorates
Solution Approach 1:
The suspension module provides beforehand cushioning by having elastic members and magnetic elements ready to generate restoring forces when impact occurs. This pre-configured protection system ensures that even in the miniaturized camera module, the optical module is protected from shock-induced image degradation.
Solution Approach 2:
The magnetic elements in the suspension module create a feedback mechanism where displacement of the movable part during impact triggers restoring forces that actively counteract the disturbance. This feedback control maintains image quality during impact while preserving the miniaturized form factor.
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 optical system effectively stabilizes the camera module during impacts, ensuring clear image capture by generating a total force that counteracts shocks, thereby maintaining image quality in compact electronic devices.
Implementation Method 1
The first suspension assembly may include a first elastic member and a second elastic member, and the movable part is suspended in the fixed assembly by the first elastic member and the second elastic member
Implementation Method 2
The second suspension assembly may include a plurality of magnetic elements, one part of which is disposed on the fixed assembly and the other part of which is disposed on the movable part
Data Source
AI summary
An optical system includes a fixed assembly, a movable part and a suspension module. The movable part is configured to be connected to an optical module, and the movable part is movable relative to the fixed assembly. The movable part is movable relative to the fixed assembly through the suspension module.