Curved Surface Driving Mechanism for Camera Image Stabilization
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Solution Overview
Problem
Conventional driving mechanisms for optical members in electronic devices, such as cameras and smartphones, face limitations in rotation range due to interference between components, restricting their ability to achieve effective image stabilization.
Innovation Solution
A driving mechanism comprising a fixed portion, a movable portion, and a driving module with a first and second electromagnetic driving assembly, where the second surface is a curved surface, allowing the movable portion to rotate around a rotation axis relative to the fixed portion, reducing interference and increasing the rotation range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical member rotates to achieve image stabilization, then the image stabilization function is improved, but interference between members occurs and the rotation range is restricted
Solution Approach 1:
The patent applies curvature by designing the second surface of the electromagnetic driving assembly as a curved surface with its center of curvature located on the rotation axis. This curved surface configuration allows the optical member to rotate over a larger angular range without the driving assembly interfering with the movable portion, thereby resolving the contradiction between achieving image stabilization and maintaining sufficient rotation range.
2Adaptability or versatility
If the rotation range of the optical member is increased, then image stabilization effectiveness is improved, but interference between components occurs
Solution Approach 1:
The curved second surface of the electromagnetic driving assembly, with its center of curvature on the rotation axis, creates a clearance space that accommodates the rotation of the optical member. This geometric configuration eliminates interference between the driving assembly and the movable portion while enabling an increased rotation range for effective image stabilization.
3Ease of manufacture
If conventional flat surfaces are used in the driving mechanism, then manufacturing is simplified, but rotation range is limited due to interference
Solution Approach 1:
The patent introduces a curved surface for the second surface of the electromagnetic driving assembly, which requires more complex manufacturing than flat surfaces. However, this curvature is necessary to achieve the desired rotation range without interference. The center of curvature is positioned on the rotation axis to optimize the clearance configuration.
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 enables enhanced image stabilization by increasing the rotation range of the optical member, reducing the impact of rotation on driving force, and preventing interference between components, thereby improving the functionality of electronic devices.
Implementation Method 1
The driving module includes a first electromagnetic driving assembly and a second electromagnetic driving assembly
Data Source
AI summary
A driving mechanism is provided, including a fixed portion, a movable portion, and a driving module disposed therebetween. The driving module includes a first electromagnetic driving assembly and a second electromagnetic driving assembly. The first electromagnetic driving assembly has a first surface, and the second electromagnetic driving assembly has a second surface facing the first surface. The second surface is a curved surface. The driving module can drive the movable portion to rotate around a rotation axis relative to the fixed portion.