Lens Module Dust Absorption Gel for Imaging Quality
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Solution Overview
Problem
The challenge is to effectively prevent foreign matter, such as dust, from affecting the imaging quality of a lens module due to collision and friction between its components, which can lead to foreign matter entering the photosensitive surface of the image sensing unit.
Innovation Solution
A lens module design that incorporates a dust absorption gel at a stop structure between the moving part and the fixed component, where the gel seals gaps and adheres foreign matter, preventing it from reaching the photosensitive surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lens module components move for focusing and image stabilization, then the imaging function is improved, but foreign matter is generated between components due to collision and friction
Solution Approach 1:
A dust absorption gel is introduced as an intermediary substance between the moving part and fixed component. The gel absorbs foreign matter generated during component movement, preventing it from reaching the photosensitive surface. This mediator resolves the contradiction by allowing movement for imaging functions while capturing harmful foreign matter through absorption.
2Ease of operation
If the lens module components move for focusing, then the focusing function is improved, but foreign matter enters the photosensitive surface affecting imaging quality
Solution Approach 1:
The dust absorption gel serves as a protective intermediary between the moving lens components and the photosensitive surface. During focusing operations, the gel captures foreign matter before it can contaminate the photosensitive surface, thus maintaining imaging quality while enabling focusing functionality.
Solution Approach 2:
The dust absorption gel is positioned in advance at the potential contamination path between moving components and the photosensitive surface. This prior cushioning prevents foreign matter from reaching critical areas during focusing operations, ensuring reliability is maintained while focusing function operates.
3Adaptability or versatility
If the lens module components move for image stabilization, then the stabilization function is improved, but foreign matter is generated due to collision and friction
Solution Approach 1:
The dust absorption gel is positioned between the movable image sensing unit and fixed components to absorb foreign matter generated during image stabilization movements. This intermediary allows the stabilization function to operate while capturing harmful particles before they can affect imaging quality.
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 dust absorption gel effectively captures foreign matter, thereby maintaining the imaging quality of the lens module by preventing dust from adhering to the photosensitive surface, even during movements for focusing, zooming, and image stabilization.
Implementation Method 1
The dust absorption gel is arranged on the first surface and seals a gap between the first surface and the second surface
Data Source
AI summary
The present discloses a lens module, a camera and a portable electronic device. The lens module comprises a fixed component, a moving part and a dust absorption gel. The moving part comprises a lens holder for fixing a lens and driving the lens to move in the direction of an optical axis to realize focusing, and/or a movable frame for fixing an image sensing unit and driving the image sensing unit to move to realize image stabilization. One of the fixed component and the moving part is provided with an accommodating cavity with an opening, and the other is provided with a protrusion, which is inserted into the accommodating cavity from the opening in a first direction and is able to move in the accommodating cavity. The impact of foreign matter on the imaging quality caused by collision and friction between components of the lens module can be effectively avoided.