Camera Module Dust Trap Epoxy Groove Design
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Solution Overview
Problem
Camera modules in mobile devices face issues with dust and soil accumulation on image sensors and lenses, leading to image failures, which existing solutions do not adequately address.
Innovation Solution
A camera module design incorporating a dust trap unit with an epoxy reception groove or inclined wall structure at the filter member's periphery, coated with dust trap epoxy, to collect and prevent dust accumulation, while reinforcing the base's structural strength with rib members or stair units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dust trap is arranged about the image sensor, then dust accumulation on the image sensor is prevented, but the structure becomes more complex and occupies additional space
Solution Approach 1:
The dust trap unit is integrated with the base structure, merging the dust collection function into the existing support structure. The epoxy reception groove is formed within the base itself, eliminating the need for separate dust trap components and reducing overall structural complexity while maintaining dust prevention functionality.
Solution Approach 2:
The base structure serves multiple functions: it provides mechanical support for the image sensor and lens, and simultaneously houses the dust trap unit through the epoxy reception groove. This multi-functionality reduces the number of separate components needed in the camera module.
2Volume of moving object
If the base is made thinner to reduce size, then the camera module becomes more compact, but the structural strength is reduced
Solution Approach 1:
The base is divided into functional regions with different thicknesses. The main body of the base remains thin to minimize overall size, while the epoxy reception groove area has increased local thickness to provide structural strength and dust trap capacity. This segmentation allows optimization of both size and strength.
Solution Approach 2:
The base has non-uniform thickness distribution, with the epoxy reception groove forming a localized thicker region. This local quality enhancement provides the necessary structural strength and dust collection capacity in specific areas while maintaining overall thinness for compactness.
3Reliability
If dust trap epoxy is coated on the base, then dust collection is improved, but post-coating cleanup is required
Solution Approach 1:
The epoxy reception groove is pre-formed in the base structure before the dust trap epoxy is applied. This preliminary structural preparation creates a contained space that automatically guides and contains the epoxy material, eliminating the need for post-coating cleanup while ensuring proper dust collection functionality.
Data Source
AI summary
The present invention relates to a camera module, the camera module including a base supporting a filter member mounted on a position corresponding to that of an image sensor mounted on a PCB (Printed Circuit Board), a dust trap unit mounted about the filter member of the base to collect soils including dust introduced into the filter member, wherein the dust trap unit includes an epoxy reception groove formed with one or more ribs formed at a periphery of the filter member mounted at the base, and a dust trap epoxy coated on an inside of the epoxy receptin groove.