Camera Module Magnet Layout for Focus and Anti-Shake Sensing
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Solution Overview
Problem
Existing camera modules in mobile electronic devices face challenges in achieving optimal focusing and anti-shake functions due to the limitations of current driving devices, which often result in reduced image quality from human physiological tremors and device jitter.
Innovation Solution
A driving device comprising a fixing part, an anti-shake frame, a focusing carrier, a magnet part, a focusing coil part, and an anti-shake coil part, with a focusing position sensing element and magnet arranged in a height direction, utilizing multiple magnets to drive both anti-shake and focusing coils, optimizing the internal structure and reducing size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple magnets are used to drive both anti-shake and focusing coils, then the focusing and anti-shake functions are enhanced, but the device complexity increases
Solution Approach 1:
The patent employs multiple magnets that serve dual purposes: driving both the anti-shake coils and the focusing coils. This multi-functionality approach allows a single magnetic component to perform multiple functions, enhancing both anti-shake and focusing capabilities while avoiding the need for separate dedicated magnets for each function, thus managing complexity through functional integration
2Volume of moving object
If components are arranged efficiently to reduce lateral size, then the device size is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent optimizes the spatial arrangement of components by utilizing three-dimensional space more effectively. By positioning magnets and coils in specific vertical and horizontal configurations, the design achieves compact lateral dimensions while maintaining functional performance. The multi-layer stacking and strategic placement of magnetic and coil components demonstrate advanced spatial utilization that reduces overall device footprint
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 enhances focusing and anti-shake functions while reducing the lateral size of the driving device by arranging components efficiently, allowing for clearer imaging and improved optical performance.
Implementation Method 1
a focusing coil part, which is arranged at the focusing carrier and is opposite to the magnet part; an anti-shake coil part, which is arranged at the fixing part and is opposite to the magnet part
Implementation Method 2
a focusing position sensing part, which comprises a focusing position sensing element and a focusing position sensing magnet, wherein the focusing position sensing element is arranged at one of the focusing carrier and the anti-shake frame, and the focusing position sensing magnet is arranged at the other of the focusing carrier and the anti-shake frame
Data Source
AI summary
Disclosed in the present application are a driving device and a camera module. The driving device comprises a fixing part; an anti-shake frame, which is movably connected to the fixing part; a focusing carrier, which is movably connected to the anti-shake frame; a magnet part, which is arranged at the anti-shake frame; a focusing coil part, which is arranged at the focusing carrier and is opposite the magnet part; an anti-shake coil part, which is arranged at the fixing part and is opposite the magnet part; and a focusing position sensing part, which comprises a focusing position sensing element and a focusing position sensing magnet, and the focusing position sensing element being arranged at one of the focusing carrier and the anti-shake frame, and the focusing position sensing magnet being arranged at the other one of the focusing carrier and the anti-shake frame, and the focusing position sensing element being arranged opposite to the focusing position sensing magnet in a height direction.