Multi-Module Imaging System for UAV Zoom Stability
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Solution Overview
Problem
Traditional zoom lens camera modules for UAVs are large, heavy, and expensive, and their size and weight cause instability issues when used on movable platforms like UAVs, especially when extending or retracting lenses for focusing.
Innovation Solution
An imaging system using multiple optical modules with different field of view or focal length ranges, allowing for a high zoom ratio with a simple configuration and small size, where images from each module can be combined and displayed simultaneously or separately, enabling a Picture-In-Picture function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a zoom lens camera module is used to achieve high zoom ratio, then the imaging capability is improved, but the size and weight of the system increases
Solution Approach 1:
The patent divides the imaging system into multiple independent optical modules, each with a fixed focal length and specific field of view. Instead of using a single zoom lens to achieve variable focal lengths, the system segments the zoom range into multiple discrete FOV ranges (e.g., 60 degrees, 30 degrees, 15 degrees) captured by separate modules. This segmentation allows each module to be compact and lightweight while collectively providing high zoom capability through image processing combination.
2Adaptability or versatility
If a zoom lens camera module is used to achieve high zoom ratio, then the imaging capability is improved, but the device complexity increases
Solution Approach 1:
The patent segments the zoom function into multiple fixed-FOV optical modules, eliminating the need for complex zoom lens mechanisms. Each module has a simple fixed focal length design, and the overall zoom effect is achieved through electronic image processing that combines images from multiple modules. This approach replaces mechanical zoom complexity with simpler optical modules and digital processing.
Solution Approach 2:
The patent replaces the mechanical zoom lens system with a combination of fixed-FOV optical modules and digital image processing. Instead of mechanically extending and retracting lens elements to change focal length, the system uses multiple static optical modules with different fields of view and combines their images electronically to achieve the zoom effect, thereby eliminating mechanical complexity.
3Manufacturing precision
If a zoom lens is extended and retracted for focusing, then the focusing capability is improved, but the stability of the gimbal and UAV deteriorates
Solution Approach 1:
The patent segments the focusing function into multiple fixed-FOV optical modules, each optimized for specific distance ranges. Instead of mechanically adjusting a single zoom lens to focus at different distances, the system uses pre-configured modules with fixed focal lengths suitable for different ranges (wide-angle for close objects, telephoto for distant objects). This eliminates the need for dynamic lens extension and retraction, thereby maintaining gimbal and UAV stability.
Data Source
AI summary
An imaging system includes a first optical module including a first image sensor, a second optical module comprising a second image sensor, and an image processor. The first optical module has a first focal length range. The second optical module has a second focal length range. The first focal length range and the second focal length range are different. The image processor is configured to receive image data for a first image from the first optical module and/or image data for a second image from the second optical module and generate data to show the first image and/or the second image within a display.