Camera Module Filter Sealing to Block Adhesive Infiltration
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Solution Overview
Problem
Camera modules for telephoto or long focal length imaging often have significant size due to multiple bodies and adhesive bonding, which can impair performance by allowing adhesive inflow, affecting optical integrity.
Innovation Solution
A camera module design with a housing having a window and filter member biased towards one side, surrounded by a protrusion, and an adhesive member in a separate space, preventing adhesive penetration and enhancing optical path conversion units for improved alignment and bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If adhesive bonding is used to couple the first body and second body, then assembly convenience and lightweightedness are improved, but adhesive infiltration occurs which impairs camera module performance
Solution Approach 1:
The sealing structure is divided into multiple components: a sealing member with first and second sealing surfaces, and a protrusion with a sealing surface. This segmentation allows the adhesive to be contained in specific regions while preventing infiltration into the optical path, resolving the contradiction between ease of assembly and performance reliability.
Solution Approach 2:
The sealing member acts as an intermediary element between the first and second bodies. It provides a dedicated sealing interface that prevents adhesive infiltration while maintaining the bonding function, thus enabling both easy assembly and performance reliability.
2Adaptability or versatility
If multiple bodies are used for telephoto imaging, then long focal length imaging capability is achieved, but the overall size of the camera module increases
Solution Approach 1:
The sealing member is integrated into the bonding structure between the first and second bodies, nesting the sealing function within the existing multi-body structure. This allows long focal length imaging capability to be maintained while minimizing the overall camera module size through efficient space utilization.
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 design allows for a thinner, more reliable camera module with enhanced optical performance by preventing adhesive contamination and enabling precise optical axis alignment.
Implementation Method 1
an adhesive member configured to contact one side of the filter member
Implementation Method 2
a protrusion configured to surround another side of the filter member not in contact with the adhesive member
Implementation Method 3
a filter member disposed on the window
Implementation Method 4
a lens module
Implementation Method 5
a first optical path changing unit configured to refract or reflect light reflected from a subject to a lens module
Data Source
AI summary
A camera module includes: a housing including a window through which light is incident and disposed on one surface of the housing, wherein a length of the housing in a first direction intersecting an optical axis is greater than a length of the housing in a second direction intersecting the optical axis; a filter member disposed on the window; an adhesive member configured to contact one side of the filter member; and a protrusion configured to surround another side of the filter member not in contact with the adhesive member.