Camera Module Impact-Absorbing Structure for Thin Lens Assemblies
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Solution Overview
Problem
Camera modules in devices like smartphones experience shock and vibration during lens movement, leading to noise and potential damage, and existing shock mitigation structures increase the module's size, causing protrusion from the device's housing.
Innovation Solution
A camera module with a shock mitigation member that absorbs shocks by being disposed between fixing portions of a lens assembly, reducing collision-induced noise and vibration without increasing the module's size, using a cantilever-shaped structure with elastic materials like elastomers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If shock mitigation structures are added to reduce noise and vibration, then reliability is improved, but device thickness increases making it difficult to fit in devices with small thickness
Solution Approach 1:
The shock mitigation member is positioned within the existing camera module structure, utilizing the recess or opening in the lens assembly. The member is received by the recess of the lens assembly, effectively nesting the shock mitigation function within the existing spatial envelope without adding external protrusions that would increase device thickness.
Solution Approach 2:
The shock mitigation member is configured to protrude in a direction parallel to the optical axis of the lens, utilizing the depth dimension of the module rather than increasing the lateral thickness. This dimensional approach allows shock mitigation functionality to be integrated without compromising the device's thin-profile requirement.
2Reliability
If shock mitigation member is added to absorb shocks during lens movement, then damage prevention is improved, but device complexity increases
Solution Approach 1:
The shock mitigation member is integrated with the lens assembly structure, utilizing the existing recess or opening in the lens assembly housing. This merging of functions allows the shock mitigation capability to be incorporated without requiring a completely separate structural system, thereby limiting the increase in device complexity.
Solution Approach 2:
The shock mitigation member is designed to automatically engage and mitigate shocks during lens movement without requiring external control systems or complex actuation mechanisms. The member utilizes the natural movement of the lens assembly and the geometry of the recess to provide passive shock absorption, simplifying the overall system complexity.
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
Effectively mitigates shocks and vibrations during lens movement, preventing damage while maintaining a compact module size, ensuring minimal protrusion from the device.
Implementation Method 1
at least one shock mitigation member having one end fixed to the frame... configured to come into contact with the first fixing portion as the lens assembly moves in the first direction
Data Source
AI summary
Disclosed are a camera module (130) including a shock mitigation member (160) and an electronic device (100) including the camera module (130). The camera module (130) according to an embodiment may include a frame (140), at least one shock mitigation member (160), and a lens assembly (110). Provided is a structure for preventing or at least partially absorbing a shock between the lens assembly (110) and another component while coming into contact with a fixing portion as the lens assembly (110) moves. In addition, various other embodiments identified through the specification are possible.