Camera Module Window Member Sealing and Auto-Focus Clearance
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Solution Overview
Problem
The camera module's open structure allows contaminants to enter, posing a risk before it is mounted on an electronic device, as the auto-focusing unit's movement creates a gap between the shield and housing that can introduce foreign particles.
Innovation Solution
A camera module housing with a light transmission window member is installed to seal the opening, spaced apart from the auto-focusing unit, and secured using an adhesive substance, ensuring the opening is concentric with the optical axis and designed to accommodate the lens holder's movement without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the camera module housing has an opening to allow auto-focusing unit movement, then the auto-focusing function is enabled, but contaminants can enter through the opening
Solution Approach 1:
A window member made of transparent resin is installed to cover the opening of the camera module housing. The window member is flexible enough to allow the auto-focusing unit to move up and down while maintaining a sealed structure that prevents contaminant entry through the opening
2Object-affected harmful factors
If a protection film is attached to seal the opening, then contaminant entry is prevented, but additional assembly steps are required
Solution Approach 1:
The window member integrates both the sealing function and the protective cover function into a single component. This eliminates the need for separate protection films and reduces the number of assembly steps while still preventing contaminant entry through the opening
3Object-affected harmful factors
If the window member is placed close to the auto-focusing unit, then the sealed structure is improved, but the auto-focusing unit movement is restricted
Solution Approach 1:
The window member is positioned at the periphery of the opening rather than directly in the path of the auto-focusing unit movement. This spatial arrangement allows the auto-focusing unit to move freely up and down while the window member maintains the seal at the housing opening
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 effectively seals the camera module, preventing contaminants from entering and simplifying assembly by eliminating the need for additional protection films, while maintaining transparency and functionality.
Implementation Method 1
an adhesive substance be coated on the edge face of the window member and then the window member be adhered and fixed to the opening
Data Source
AI summary
A camera module according to an aspect of the present invention includes a camera module housing configured to have an opening on the upper side thereof and have an image sensor installed therein and a window member made of light transmission material, formed to have a shape corresponding to the opening of the camera module housing, and fixed to the opening.