Movable Lens Barrel Camera Module for Hand-Shake Compensation
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Solution Overview
Problem
Existing camera modules struggle with hand-shaking issues, leading to image distortion and reduced image quality, particularly at the outer peripheral portions.
Innovation Solution
A camera module design that includes a lens barrel with an elastic member and a driving unit, allowing the lens barrel to move relative to the housing, compensating for hand-shaking by adjusting the lens position to minimize image distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the lens barrel is made movable to compensate for hand-shaking, then image stability is improved, but device complexity increases
Solution Approach 1:
The lens barrel is designed to be movable rather than fixed, allowing it to dynamically adjust its position to compensate for hand-shaking. The driving unit enables the lens barrel to move in response to detected shaking, transforming a static structure into a dynamic one that can adapt to external disturbances.
Solution Approach 2:
An elastic member is introduced as an intermediary between the lens barrel and the housing. This elastic member facilitates controlled movement of the lens barrel while maintaining a mechanical connection, acting as a mediator that enables motion without requiring complete decoupling of the lens barrel from the housing structure.
2Manufacturing precision
If the lens barrel moves to correct image distortion, then image quality is improved, but manufacturing complexity increases
Solution Approach 1:
The camera module is divided into separable components: the lens barrel, the housing, the elastic member, and the driving unit. This segmentation allows each component to be manufactured and tested independently, then assembled together, reducing overall manufacturing complexity despite the added functionality.
Solution Approach 2:
The elastic member serves as a simple intermediary component that can be easily manufactured and integrated. It provides the necessary mechanical compliance without requiring complex mechanisms, thereby maintaining ease of manufacture while enabling the lens barrel movement function.
3Stability of the object's composition
If an elastic member is added to enable lens barrel movement, then hand-shaking compensation is improved, but device complexity increases
Solution Approach 1:
The elastic member is positioned as an intermediary between the lens barrel and the housing, providing a simple mechanical solution for enabling controlled movement. This single component facilitates hand-shaking compensation without requiring complex mechanisms, acting as an effective mediator that adds minimal complexity.
Solution Approach 2:
The elastic member changes the mechanical parameters of the lens barrel mounting system, transitioning from a rigid fixed connection to a compliant connection that allows controlled displacement. This parameter change enables the lens barrel to move in response to hand-shaking while maintaining structural integrity.
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 effectively compensates for hand-shaking by minimizing image movement errors, particularly at the outer peripheral portions, thereby enhancing image stability and quality.
Implementation Method 1
an elastic member in at least one of the housing and the lens barrel
Data Source
AI summary
Disclosed is a camera module. The camera module includes: a lens barrel disposed in a housing to receive a lens assembly; an elastic member in at least one of the housing and the lens barrel; a driving unit moving the lens barrel relative to the housing; and a sensor unit fixed to the housing.