Dual FOV Imaging System Composite Lens Array
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Solution Overview
Problem
High-resolution wide field of view imaging systems generate excessive data, making them impractical for smaller, less expensive platforms, and traditional alternatives either lack resolution for tracking smaller objects or are limited in coverage, leading to target loss issues, especially in military contexts.
Innovation Solution
A dual field of view imaging system utilizing a composite lens array with separate lens sets for wide and narrow fields of view and a composite focal plane array to produce a seamless mosaic image, allowing for efficient tracking of both larger and smaller objects with reduced data capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a high-resolution wide FOV imaging system is used, then target tracking capability and observable area are improved, but data quantity and processing requirements increase excessively
Solution Approach 1:
The imaging system is segmented into multiple lens sets, each with different FOV characteristics (wide FOV and narrow FOV lenses). This segmentation allows the system to capture images at different resolutions and FOVs, reducing the overall data quantity while maintaining target tracking capability across the entire observable area.
2Quantity of substance
If a lower-resolution wide FOV camera is used, then data quantity is reduced, but resolution is insufficient for tracking smaller objects
Solution Approach 1:
Different regions of the observable area are assigned different imaging qualities through the use of wide FOV and narrow FOV lens sets. The narrow FOV lens sets provide high-resolution imaging for specific regions of interest, while wide FOV lens sets provide lower-resolution coverage for broader areas, optimizing the balance between data quantity and tracking resolution.
3Measurement precision
If a narrow FOV high-resolution camera is used, then tracking resolution is improved, but observable area and target coverage are limited
Solution Approach 1:
The imaging system achieves multi-functionality by combining wide FOV and narrow FOV lens sets that can independently capture images. This allows the system to simultaneously provide broad area coverage and high-resolution tracking, making it universally applicable to both large-area surveillance and detailed target tracking requirements.
4Area of stationary object
If a highly complex telecentric lens is used to achieve wide FOV, then FOV coverage is improved, but lens complexity and production costs increase
Solution Approach 1:
Instead of using a single complex telecentric lens, the system segments the FOV coverage function across multiple simpler lens sets. Each lens set has a moderate FOV and specific optical characteristics, but collectively they provide wide overall coverage, significantly reducing individual lens complexity and production costs.
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
Enables effective tracking of multiple targets across a wide area with reduced data processing requirements, balancing resolution and coverage while minimizing production complexity and cost.
Implementation Method 1
a first lens set positioned to focus a first type of FOV and a second lens set positioned to focus a second type of FOV
Data Source
AI summary
A multi field of view (FOV) imaging system is disclosed. In one embodiment, a dual FOV imaging system includes a composite lens array including a first lens set positioned to focus a first type of FOV and a second lens set positioned to focus a second type of FOV and a composite focal plane array (FPA) including multiple focal plane arrays (FPAs). Further, the composite FPA is disposed at the first type of FOV and the second type of FOV for producing a seamless mosaic dual FOV image of a target region.