Multi-Spectrum Imaging Apparatus with Wavelength Segmentation
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Solution Overview
Problem
Multi-spectrum cameras face challenges in maintaining high wavelength reproducibility and signal-to-noise (S/N) ratio, particularly when covering wide wavelength bands such as visible and near-infrared bands with a single filter, leading to deteriorated signal components and reduced accuracy in extracting target wavelengths.
Innovation Solution
An imaging apparatus with a splitter that separates incident light into multiple wavelength bands and multiple detectors to capture and process these bands separately, allowing for tunable wavelength extraction while maintaining high reproducibility and S/N ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wide wavelength band ranging from visible band to near-infrared band is covered by one multi-spectrum filter, then the apparatus can extract images of multiple wavelength bands, but the reproducibility of extraction target wavelength deteriorates remarkably
Solution Approach 1:
The patent divides the wide wavelength band into multiple separate wavelength bands, with each band covered by a dedicated multi-spectrum filter. This segmentation allows each filter to maintain high wavelength reproducibility for its specific band while the system as a whole covers a wide range from visible to near-infrared bands.
Solution Approach 2:
The patent transitions from a single-filter approach to a multi-filter array approach, adding the dimension of spatial distribution. The multiple multi-spectrum filters are arranged in an array, allowing simultaneous capture of multiple wavelength bands with high reproducibility through post-processing extraction.
2Adaptability or versatility
If a wide wavelength band is covered by one multi-spectrum filter, then multiple wavelength bands can be captured, but the signal components of extraction target wavelength decrease
Solution Approach 1:
By segmenting the wavelength coverage across multiple dedicated filters, each filter captures signal components with higher intensity and purity for its specific wavelength band, thereby improving the signal-to-noise ratio while maintaining wide overall coverage.
Solution Approach 2:
The patent combines the outputs from multiple detectors corresponding to different wavelength bands through post-processing to achieve wide wavelength coverage, while each individual detector maintains high signal quality for its specific band.
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 precise extraction of desired wavelengths with improved reproducibility and S/N ratio, effectively addressing the limitations of existing multi-spectrum cameras by separating and processing light across multiple bands.
Implementation Method 1
a splitter that splits incident light into pieces of light of two or more wavelength bands
Implementation Method 2
two or more detectors that detect the pieces of light of two or more wavelength bands respectively and output signals
Data Source
AI summary
Provided is an imaging apparatus including: a splitter that splits incident light into pieces of light of two or more wavelength bands; and two or more detectors that detect the pieces of light of two or more wavelength bands respectively and output signals from which wavelengths can be extracted tunably by post-processing.