Camera Module with Isolated Autofocus and Stabilization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current camera modules in portable electronic devices face challenges in achieving compactness while maintaining high performance and image quality, particularly in integrating autofocusing and optical image stabilization without increasing the device's size or load.
Innovation Solution
The camera module design incorporates a plurality of lens groups with an autofocusing structure that receives part of the optical image stabilizer, utilizing magnets and coils to adjust focus and compensate for camera shake, allowing for a smaller optical system without additional load beyond the drivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If autofocusing and optical image stabilizer structures are integrated in conventional camera modules, then performance and image quality are improved, but device size and weight increase
Solution Approach 1:
The patent combines the autofocusing structure and optical image stabilizer structure into a single integrated unit. The housing includes both lens groups (first and second lens groups) within one structure, allowing both autofocusing and image stabilization functions to be performed without requiring separate mechanical assemblies. This merging reduces the overall weight and size while maintaining both functions.
Solution Approach 2:
The housing structure serves multiple functions simultaneously: it holds both lens groups, provides the optical path for both autofocusing and image stabilization, and incorporates both driving mechanisms (first driver for autofocusing, second driver for image stabilization). This multi-functionality eliminates the need for separate dedicated structures for each function, reducing overall device weight.
2Reliability
If autofocusing and optical image stabilizer structures are integrated in conventional camera modules, then performance and image quality are improved, but device size increases
Solution Approach 1:
The patent implements a nested configuration where the first lens group (for autofocusing) and second lens group (for image stabilization) are positioned within the same housing in a compact arrangement. The housing structure nests both optical paths and mechanical components together, allowing the lens groups to be arranged in a space-efficient manner that reduces overall device dimensions.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement within the housing to accommodate both lens groups and their respective driving mechanisms. By optimizing the spatial configuration and using vertical stacking where possible, the design achieves compactness in all three dimensions while maintaining the necessary optical paths for both autofocusing and image stabilization functions.
3Adaptability or versatility
If separate autofocusing and image stabilization structures are used, then functional independence is maintained, but device complexity increases
Solution Approach 1:
The patent divides the housing into functional segments: the first lens group with its driving mechanism for autofocusing, and the second lens group with its driving mechanism for image stabilization. Each segment maintains functional independence through dedicated driving mechanisms (first driver and second driver), while the overall housing structure integrates them into a unified compact design, reducing complexity compared to fully separate structures.
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 achieves compactness by integrating autofocusing and optical image stabilization effectively, enhancing the camera module's performance and image quality without increasing the device's size or weight.
Implementation Method 1
the first housing is moveable in a first direction responsive to an interaction between the first magnet and the first coil that adjusts a focus of the camera module
Implementation Method 2
the second housing moveable in a second direction responsive to an interaction between the second magnet and the second coil that at least partially compensates for shaking of the camera module
Data Source
AI summary
A camera module is disclosed. The camera module includes first and second housings, respectively including first and second lens groupings and first and second magnets, a third housing including a bottom surface, a wall surface, and first and second coils, a circuit board include an image sensor, the board adjacent to the third housing. The first housing is moveable in a first direction by interaction between the first magnet and first coil for adjusting a focus. The second housing is moveable in a second direction by interaction between the second magnet and second coil for anti-shake compensation.