Lens Moving Module Structure for Hand Tremor Stabilization
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Solution Overview
Problem
Existing camera modules, particularly in small electronic devices like smartphones, face challenges in withstanding shocks and hand tremors, leading to inaccurate image capture due to inadequate stabilization mechanisms.
Innovation Solution
A lens moving apparatus with a bobbin, coil, magnet, and elastic members that distribute stress and improve hand tremor compensation, featuring a unique coupling and connection mechanism to enhance stability and accuracy during image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single connection portion is used to connect the inner frame and outer frame, then the stress distribution is improved and hand tremor compensation accuracy is enhanced, but the device complexity increases due to the specific coupling portion configuration
Solution Approach 1:
The coupling portion is divided into a first coupling portion connected to the housing and a second coupling portion connected to the support member, with the second coupling portion spaced apart from the first. This segmentation allows for optimized stress distribution while maintaining functional integration within the elastic member structure.
Solution Approach 2:
The connection portion is configured to connect the first and second coupling portions that are spaced apart in a direction extending from the optical axis. This spatial arrangement in another dimension enables effective stress distribution across the elastic member without interfering with the optical path.
2Stability of the object's composition
If the second coupling portion is spaced apart from the first coupling portion, then the stress distribution is improved, but the volume of the elastic member increases
Solution Approach 1:
The elastic member is designed to be flexible and deformable, allowing it to dynamically adapt to stress distributions caused by shocks and hand tremors. The spaced-apart coupling portions work together with the elastic material properties to distribute stress effectively without requiring excessive volume.
Solution Approach 2:
The distance between the first and second coupling portions is optimized to achieve effective stress distribution while controlling the overall volume. The connection portion geometry and material properties are adjusted to maintain structural integrity within a compact form factor suitable for mobile devices.
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 apparatus effectively stabilizes the lens module, reducing the impact of shocks and hand tremors, resulting in improved image quality and accuracy by efficiently distributing stress and enhancing the accuracy of hand tremor compensation.
Implementation Method 1
a first coil and a magnet configured to electromagnetically interact with each other so as to move the bobbin
Data Source
AI summary
Embodiments provide a lens moving apparatus including a bobbin in which a lens is mounted, a first coil and a magnet configured to electromagnetically interact with each other so as to move the bobbin, a housing configured to accommodate the bobbin therein, an elastic member including an inner frame coupled to the bobbin, an outer frame coupled to the housing, and a frame connection portion configured to connect the inner frame and the outer frame to each other, and a support member connected to the elastic member and configured to support the housing, and the outer frame includes a first coupling portion coupled to the housing, a second coupling portion coupled to the support member, the second coupling portion being spaced apart from the first coupling portion, and a single connection portion configured to connect the first coupling portion and the second coupling portion to each other.