Multi-Lens Camera Module with Integrated Driving Member for Slim Device OIS
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Solution Overview
Problem
The challenge is to integrate high-performance camera modules with auto-focusing (AF) and optical image stabilizer (OIS) functions into slim electronic devices while maintaining image quality and efficiency, as existing solutions face difficulties in compact design and effective stabilization.
Innovation Solution
A camera module design featuring multiple lenses with independent focusing modules, each equipped with magnets and driving coils, allows for precise control of lens movement and stabilization through a driving member and fixing member, utilizing a ball bearing and circuit board to efficiently provide AF and OIS functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-performance camera modules are applied to provide high-quality images and OIS function, then image quality and stabilization performance are improved, but device thickness increases making it difficult to apply to slim electronic devices
Solution Approach 1:
The camera module is divided into multiple independent focusing modules, each handling a specific lens. This segmentation allows each module to be optimized independently for thickness while maintaining overall high-performance capabilities through modular architecture.
Solution Approach 2:
The patent implements a nested structure where the lens barrel is positioned within the focusing module housing, which in turn is mounted on the circuit board. This nested arrangement maximizes space utilization and minimizes the overall thickness of the camera module while preserving all necessary functional components.
2Reliability
If multiple lenses are integrated to provide high-quality images, then image quality is improved, but device complexity increases
Solution Approach 1:
Each lens is assigned to its own independent focusing module with dedicated lens barrels, magnets, and driving coils. This segmentation simplifies the overall system architecture by creating modular units that can be independently designed, manufactured, and assembled, reducing the complexity of integrating multiple lenses.
Solution Approach 2:
The patent employs a universal focusing module design that can accommodate multiple different lenses while maintaining the same structural framework and control mechanism. This multi-functional approach allows a single module type to serve multiple optical functions, reducing overall device complexity.
3Reliability
If independent focusing modules are used to provide AF and OIS functions, then stabilization performance is improved, but manufacturing complexity increases
Solution Approach 1:
The focusing modules are designed as independent, self-contained units with all necessary components (lens, magnets, driving coils, housing) integrated into single assemblies. This segmentation enables parallel manufacturing of identical modules, simplifying production processes and quality control while maintaining high stabilization performance.
Solution Approach 2:
The patent combines the AF and OIS functions into a single integrated focusing module structure, where the same mechanical components serve both auto-focusing and optical image stabilization purposes. This merging reduces the total number of separate assemblies needed, simplifying manufacturing while providing dual functionality.
4Manufacturing precision
If multiple magnets and driving coils are integrated to control lens movement, then focusing precision is improved, but device complexity increases
Solution Approach 1:
The control mechanism is divided into independent driving systems for each focusing module, with dedicated magnets and driving coils positioned at specific locations. This segmentation allows precise control of each lens independently while maintaining a relatively simple overall control architecture through modular organization.
Solution Approach 2:
The patent positions magnets and driving coils at specific locations within each focusing module to optimize local magnetic field distribution and driving efficiency. This localized optimization achieves high focusing precision without requiring complex control mechanisms across the entire camera 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 design enables accurate and efficient OIS with a wider correction range, allows for easy replacement of damaged modules, and provides independent AF and OIS functions, enhancing image quality and device usability.
Implementation Method 1
driving forces generated through the one or more driving coils
Implementation Method 2
a ball bearing received in the recess of the driving member and in the recess of the fixing member
Data Source
AI summary
Various embodiments of the present disclosure relate to a camera module including a plurality of lenses and an electronic device including the same. The camera module include: a plurality of lens barrels; a plurality of focusing modules in which the lens barrels are mounted; a driving member coupled with the focusing modules and having a recess; a fixing member in which the driving member coupled with the focusing modules is mounted, the fixing member having a recess formed in the center of the internal bottom surface thereof; the ball bearing received in the recesses of the driving member and the fixing member; and a circuit board formed to surround side surfaces of the fixing member and includes one or more driving coils corresponding to the one or more magnets. The driving member integrally drive the focusing modules in response to driving forces generated through the driving coils.