Ball-Guided Camera Lens Structure for Low-Friction Image Stabilization
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Solution Overview
Problem
Traditional camera systems with ball-type anti-shake designs experience excessive friction and debris accumulation due to multiple contact points, leading to contamination and reduced image quality.
Innovation Solution
A camera structure utilizing a moving element that contacts at two points with parallel, inclined surfaces on moving portions, reducing friction by minimizing surface contact and employing magnetic interactions for controlled movement along three axes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ball-type anti-shake mechanism is used, then image stabilization function is achieved, but friction and debris accumulation increase
Solution Approach 1:
The patent uses a spherical moving element (ball) that rolls between two inclined planes instead of sliding. The curvature of the sphere allows it to rotate as it moves, converting sliding friction into rolling friction, which significantly reduces wear and debris generation while maintaining the image stabilization function
Solution Approach 2:
The patent replaces the traditional sliding mechanical contact system with a magnetic field-based control system. Magnetic actuators generate forces that control the position of the moving element without direct mechanical contact, eliminating friction and debris accumulation while maintaining precise image stabilization control
2Stability of the object's composition
If multiple contact points are used in anti-shake mechanism, then stability is improved, but friction increases
Solution Approach 1:
The spherical moving element contacts the two inclined planes at single points rather than across multiple surfaces. This point contact geometry maintains stability through the symmetric arrangement of the two contact points while minimizing friction by reducing the contact area to discrete points
Solution Approach 2:
The patent uses magnetic fields to control the position of the moving element, replacing direct mechanical contact and friction-based stability mechanisms. The magnetic forces provide stable positioning without the friction associated with multiple mechanical contact points
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 minimizes friction, extends the lifespan of moving components, and enhances image stabilization by providing precise control over the moving element's movement, thus improving image quality.
Implementation Method 1
employing magnetic interactions for controlled movement along three axes
Data Source
AI summary
A camera structure includes a moving structure and a camera lens. The moving structure includes first moving portion, second moving portion and moving element. The moving element is sphere and is disposed between the first moving portion and the second moving portion. The first moving portion has a first plane and a first surface. The second moving portion has second plane and second surface. The first plane and second plane are parallel to each other. The moving element touches against the first surface at the first contact point. The moving element touches against the second surface at the second contact point. The first contact point and the second contact point is located at two side of the moving element. The moving element moves along the first surface of the first moving portion and the second surface of the second moving portion. The camera lens is displaced through the moving structure.