Multiscale Optical System with Dynamic Microcamera Array
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Solution Overview
Problem
Conventional single-aperture cameras struggle to capture the diversity of complex scenes with varying distances, illumination levels, and polarization, leading to inadequate image quality, while multi-camera systems are bulky and prone to dead zones due to limited lens size and spacing.
Innovation Solution
A compact imaging system utilizing a single objective lens and an array of individually controllable microcameras with unique optical axes, allowing for simultaneous imaging of diverse scenes with adjustable focus, exposure, gain, and magnification to create high-resolution composite images with enhanced depth-of-field and dynamic range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional single-aperture camera is used, then the device complexity is low, but the ability to capture diverse scene attributes (depth of field, dynamic range, spatial resolution) is insufficient
Solution Approach 1:
The imaging system is segmented into multiple microcameras, each with independent controllable parameters (aperture, exposure time, focus). Each microcamera captures a specific portion of the scene with optimized settings for that region, enabling diverse scene attributes to be captured simultaneously across different zones.
Solution Approach 2:
The patent transitions from a single-aperture 2D imaging plane to a multi-aperture 3D spatial arrangement of microcameras. This dimensional expansion allows simultaneous capture of multiple depth planes and scene regions, dramatically increasing adaptability to diverse scene attributes while managing complexity through modular architecture.
2Adaptability or versatility
If multiple camera systems are employed to capture diverse scene attributes, then the adaptability improves, but the system becomes large and bulky
Solution Approach 1:
Multiple microcameras are nested or densely packed within a compact array configuration, with each microcamera containing integrated optics and sensor elements. This nesting approach allows multiple imaging functions to coexist in a minimized volume, avoiding the bulk of traditional multi-camera systems while maintaining adaptability.
Solution Approach 2:
The patent employs thin-film optical elements and compact microcamera designs that reduce the physical footprint of each imaging unit. These flexible, miniaturized components can be arranged in dense arrays without requiring large spacing, thereby achieving high adaptability in a compact form factor.
3Measurement precision
If multiple camera systems are used with large lenses, then the ability to resolve scene features improves, but dead zones appear in the composite image
Solution Approach 1:
Each microcamera in the array is equipped with independently controllable optical parameters including aperture size, focus position, and exposure time. This local quality control allows each microcamera to optimize its settings for its specific field of view, maximizing spatial resolution in each zone while the overlapping fields of view eliminate dead zones in the composite image.
Solution Approach 2:
The system employs dynamic control of camera settings for each microcamera, allowing real-time adjustment of aperture, focus, and exposure based on scene requirements. This dynamic adaptability ensures that spatial resolution is optimized across the entire scene while maintaining continuous coverage without dead zones through coordinated operation of multiple cameras.
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 system achieves higher spatial resolution and flexibility in capturing complex scenes with enhanced depth-of-field and dynamic range, overcoming the limitations of single-aperture cameras and multi-camera systems, while maintaining a smaller and more economical design.
Implementation Method 1
a single objective lens and an arrangement of individually controllable microcameras that image the scene through the objective lens
Implementation Method 2
Each microcamera includes camera optics and a focal-plane array
Data Source
AI summary
A multiscale imaging system including microcameras having controllable focus, dynamic range, exposure, and magnification is disclosed. The objective lens forms a three-dimensional image field of a scene. Image regions of the image field are relayed by the microcameras onto their respective focal-plane arrays, which collectively provide a plurality of digital sub-images of the scene. The digital sub-images can then be used to form a composite digital image of the scene that can have enhanced depth-of-field, enhanced dynamic range, parallax views of the scene, or three-dimensionality.