Camera Module Lens Barrel Magnetic Drive Hand-Shaking Compensation
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Solution Overview
Problem
Camera modules face challenges in effectively compensating for hand-shaking, particularly in compact designs with complex manufacturing processes and high component counts.
Innovation Solution
A camera module with a lens barrel driven by a magnetic force system, including coils that directly contact the circuit board, allowing for 3-axis movement to compensate for hand-shaking and adjust focus without the need for springs or pins, simplifying the structure and manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a magnetic force system with coils is used to drive the lens barrel for hand-shaking compensation, then the effectiveness of hand-shaking compensation is improved, but the device complexity increases due to additional driving components
Solution Approach 1:
The patent combines the first driving unit (for hand-shaking compensation) and the second driving unit (for focus adjustment) into a single integrated driving assembly. The lens barrel is coupled to both driving units simultaneously, allowing one structural component to perform dual functions. This merging reduces the overall number of separate driving mechanisms needed while maintaining effective hand-shaking compensation and focus adjustment capabilities.
Solution Approach 2:
The lens barrel serves multiple functions: it houses the lens group, acts as a movable platform for hand-shaking compensation through the first driving unit, and enables focus adjustment through the second driving unit. By making the lens barrel a multi-functional component that responds to both driving units, the patent reduces the need for separate structural elements for each function, thereby simplifying the overall device complexity while improving reliability.
2Stability of the object's composition
If traditional mechanical connection methods (springs or pins) are used to connect the driving unit to the circuit board, then the structural stability is improved, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The patent replaces traditional mechanical connection methods (such as springs or pins) with a magnetic connection mechanism. The second driving unit utilizes magnetic attraction forces to connect and disconnect from the circuit board without physical contact. This substitution eliminates the need for precise mechanical alignment, reduces assembly steps, and simplifies the manufacturing process while maintaining stable operational connections during camera operation.
Solution Approach 2:
The magnetic connection system allows the second driving unit to dynamically connect to and disconnect from the circuit board based on operational requirements. During normal operation, the magnetic force maintains a stable connection for focus adjustment. When manufacturing or maintenance is needed, the connection can be easily disrupted without mechanical disassembly. This dynamic connection approach simplifies manufacturing while ensuring structural stability during use.
3Adaptability or versatility
If multiple separate driving units are used for hand-shaking compensation and focus adjustment, then the functional versatility is improved, but the number of components and manufacturing steps increases
Solution Approach 1:
The patent merges the hand-shaking compensation function and focus adjustment function into a single integrated lens barrel assembly that responds to two coordinated driving units. Rather than using completely separate mechanisms for each function, the design allows both functions to operate on the same structural platform, reducing the total number of components needed while maintaining full functional versatility.
Solution Approach 2:
The lens barrel is designed as a universal component that performs multiple functions: it contains the lens group, serves as the moving element for hand-shaking compensation, and acts as the focus adjustment mechanism. By making the lens barrel multi-functional and capable of responding to different driving inputs, the patent reduces the need for separate dedicated components for each function, thereby reducing overall device complexity while preserving adaptability.
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 compensates for hand-shaking and focus adjustments by moving the lens barrel relative to the housing using magnetic forces, reducing the number of components and manufacturing steps, thereby enhancing stability and functionality in a compact form.
Implementation Method 1
driving the lens barrel with respect to the housing by a magnetic force system
Data Source
AI summary
Disclosed is a camera module. The camera module according to one embodiment includes a lens barrel disposed in a housing to receive a lens; a driving unit moving the lens barrel relative to the housing; and a circuit board electrically connected to the driving unit. The driving unit includes a first driving unit in the lens barrel; and a second driving unit in the housing. A portion of the second driving unit directly makes contact with the circuit board.