Camera Module Light Filter Holder Design for Compact Packaging
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Solution Overview
Problem
Conventional camera module packaging technologies face challenges in reducing the size of camera modules while ensuring the light filter's accuracy and durability, as the integral molding process increases the size of the light filter and makes it prone to damage, and the assembly process is complex due to the difficulty in controlling the shape of the packaging portion's grooves.
Innovation Solution
A camera module design that incorporates a light filter holder with inward and downward extending arms, which forms a supporting groove for the light filter, allowing it to be installed closer to the photosensitive element and reducing the overall height, while also providing a stable assembly position and protection from stress, thereby optimizing the camera module's configuration and reducing its size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional integral packaging technology is used to embed electronic components, then the occupying space is reduced and dust protection is improved, but the light filter size increases and manufacturing accuracy becomes harder to control
Solution Approach 1:
The packaging portion is divided into multiple sections: a base portion embedded in the circuit board and an extended portion protruding from the circuit board. This segmentation allows the light filter to be positioned on the extended portion with higher precision while maintaining the compact embedding structure for other components.
Solution Approach 2:
The extended portion of the packaging portion acts as an intermediary structure between the circuit board and the light filter. It provides a dedicated mounting surface that improves light filter positioning accuracy without requiring the entire packaging structure to be oversized.
2Area of stationary object
If the light filter size is increased to ensure filtering performance, then the filtering area is improved, but the manufacturing cost increases and the light filter becomes more prone to damage
Solution Approach 1:
The extended portion of the packaging portion provides localized support and protection specifically for the light filter area. This allows the light filter to be smaller in overall size while maintaining adequate filtering area, as the extended portion compensates for reduced filter dimensions with improved positioning and protection.
3Adaptability or versatility
If the packaging portion groove shape is complex to accommodate components, then the component arrangement flexibility is improved, but the assembly process becomes more complex and harder to control
Solution Approach 1:
The packaging portion is segmented into a base portion and an extended portion with different functional characteristics. The base portion provides embedding for electronic components, while the extended portion provides a simplified mounting surface for the light filter, reducing the overall assembly complexity.
Solution Approach 2:
Instead of creating complex grooves within the packaging portion to position the light filter, the design inverts the approach by having the packaging portion extend outward to create a natural mounting surface. This simplifies the groove requirements while maintaining component arrangement flexibility.
Data Source
AI summary
A camera module and an array camera module based on an integral packing process are disclosed. The camera module or each of the camera module units of the array camera module includes a circuit board, an integral base, a photosensitive element operatively connected to the circuit board, a lens, a light filter holder installed at the integral base and a light filter installed at the light filter holder. The light filter is not required to be directly installed to the integral base, so that the light filter is protected and the requiring area of the light filter is reduced.