Dual Camera Module Sensor Nesting for Slim Mobile Terminals
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Solution Overview
Problem
Current mobile terminals with dual camera modules lack the ability to perform seamless zoom-in/out functions and 3D scanning efficiently, and they do not utilize the space between camera modules effectively, resulting in a bulkier design and limited optical image quality.
Innovation Solution
A dual camera module configuration with a first camera module having a standard lens and a second camera module with a wide angle or telephoto lens, where a sensor unit is located between them, aligned using support members to coincide their fields of view, allowing for advanced zoom functions and 3D scanning capabilities while achieving a slim design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If dual camera modules are mounted with sufficient spacing for proper optical function, then image capture quality and zoom functions are improved, but terminal thickness increases
Solution Approach 1:
The patent positions the sensor unit in the empty space between the first and second camera modules along the optical axis direction, utilizing the depth dimension rather than lateral spacing. This allows the sensor unit to be integrated without increasing terminal thickness while maintaining the required spacing between camera modules for optimal image capture quality and zoom functionality.
Solution Approach 2:
The sensor unit is nested within the space between the two camera modules, effectively utilizing the existing structural void. This nesting approach allows the sensor unit to be accommodated without adding external dimensions to the terminal, thereby maintaining a slim profile while ensuring proper camera module spacing for high-quality imaging.
2Adaptability or versatility
If camera modules are spaced apart for depth sensing and zoom functions, then 3D scanning and zoom capabilities are improved, but device complexity increases
Solution Approach 1:
The sensor unit serves multiple functions simultaneously: it performs depth sensing for 3D scanning, assists in autofocus operations, and provides ambient light detection. This multi-functionality reduces the need for separate components, thereby managing device complexity while enhancing zoom and 3D scanning capabilities through the spaced dual camera configuration.
Solution Approach 2:
The patent combines the sensor unit with the dual camera module assembly, integrating depth sensing and other auxiliary functions into the existing structure. This merging approach manages complexity by sharing the spacing requirement between camera modules for both zoom functionality and sensor operation, rather than requiring separate mounting arrangements.
3Length of stationary object
If sensor unit is placed between camera modules, then terminal thickness is reduced, but alignment precision requirements increase
Solution Approach 1:
The patent applies local quality by providing specific support structures and alignment features at the camera module-sensor interface regions. These localized precision features ensure accurate relative positioning of the camera modules and sensor unit without requiring high precision across the entire terminal assembly, thereby managing manufacturing complexity while achieving slim dimensions.
Solution Approach 2:
The camera modules and sensor unit are pre-aligned and fixed relative to each other during module assembly before being integrated into the terminal. This preliminary alignment action ensures that the required spatial relationships are established early in the manufacturing process, reducing the need for post-assembly adjustments and managing precision requirements effectively.
Data Source
AI summary
Disclosed is a dual camera module equipped in a mobile terminal. The dual camera module includes a first camera module having a first focal length and a first field of view, a second camera module spaced apart from the first camera module by a predetermined distance, the second camera module having a second focal length and a second field of view, which are different from those of the first camera module, a sensor unit located in a space between the first camera module and the second camera module, and at least one member configured to align the first and second camera modules in a line so that beginning points of the fields of view of the first and second camera modules coincide with each other.