Image Sensor Substrate Flexure for Autofocus and Shake Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera modules require complex spring structures and multiple elastic members to achieve autofocus and image stabilization, complicating the module design and increasing assembly processes.
Innovation Solution
An image sensor substrate with a conductive pattern and insulating layer structure that allows for relative movement between the image sensor and lens barrel in X, Y, and Z axes, using an extension pattern part to connect the conductive patterns and serve as both a signal transmitter and a spring for moving the image sensor, thereby simplifying the spring structure and stabilizing the module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple elastic members and complex spring structures are used to achieve autofocus and image stabilization, then the camera module can perform focus correction and shake compensation, but the module structure becomes complicated and the number of assembly processes increases
Solution Approach 1:
The patent combines multiple elastic members into a single integrated elastic member structure. The first and second elastic members are merged into one piece that includes first and second engagement parts, reducing the total number of components while maintaining the ability to perform both autofocus and image stabilization functions
Solution Approach 2:
The integrated elastic member serves multiple functions simultaneously - it provides both the first elastic member function for autofocus and the second elastic member function for image stabilization. The single structure engages with different parts of the lens barrel to achieve multiple correction capabilities
2Reliability
If multiple elastic members are used for moving the lens barrel, then focus correction and shake compensation can be achieved, but the number of assembly processes increases
Solution Approach 1:
Multiple elastic members are merged into a single integrated component that can be assembled in one operation. The first engagement part and second engagement part are formed as integral parts of the same elastic member, allowing simultaneous installation during a single assembly process
3Ease of operation
If a conventional spring structure is used for autofocus and handshake compensation, then the required mechanical movement can be achieved, but the spring structure becomes complicated
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate components from the conventional spring structure. By directly engaging the integrated elastic member with the lens barrel and housing, it removes redundant parts and simplifies the overall spring structure while maintaining full functionality
Solution Approach 2:
The spring structure is simplified by merging multiple separate springs and elastic components into a single integrated elastic member that performs all required mechanical functions through its unified structure
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
This solution simplifies the camera module structure, reduces the number of assembly processes, and enhances the stability and mobility of the image sensor, while minimizing noise generation and improving operation reliability.
Implementation Method 1
the extension pattern part includes a bent portion disposed on a corner region of the first open region
Data Source
AI summary
An image sensor substrate includes an insulating layer and a conductive pattern part disposed on the insulating layer. The insulating layer includes: a first insulating part and a second insulating part disposed surrounding a periphery of the first insulating part and spaced apart from the first insulating part with a first open region interposed therebetween. The conductive pattern part includes a first conductive pattern part disposed on the first insulating part, a second conductive pattern part disposed on the second insulating part; and an extension pattern part disposed on the first open region and interconnecting the first and second conductive pattern parts. The extension pattern part includes a bent portion disposed on a corner region of the first open region.