Multicolor Sensor Calibration for Accurate Biological Color Detection
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Solution Overview
Problem
Detection apparatuses for biological tissues or microorganisms suffer from reduced color detection accuracy due to variations in light source luminance, which affect color tones in the detection results.
Innovation Solution
A detection apparatus with a sensor and light sources that emit light in multiple colors, using adjustment coefficients to equalize sensor outputs and compensate for variations in light source luminance, ensuring accurate color detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple color light sources are provided for detection, then color information can be added to detection results, but variations in luminance among light sources cause color tone distortions and reduce detection accuracy
Solution Approach 1:
The patent applies parameter changes by introducing adjustment coefficients that modify the output signals from the sensor based on the luminance characteristics of each light source. These coefficients are derived through calibration processes and are applied to compensate for luminance variations, thereby maintaining color detection accuracy across multiple light sources with different luminance outputs.
Solution Approach 2:
The patent implements feedback by measuring the actual luminance output of each light source and using this information to adjust the detection signals. The adjustment coefficients are determined through feedback loops that compare expected versus actual light output and modify subsequent detection measurements accordingly, ensuring accurate color detection despite luminance variations.
2Quantity of substance
If light sources with different colors are used to detect multiple wavelengths, then comprehensive color information is obtained, but luminance variations introduce errors in color tone representation
Solution Approach 1:
The patent changes the parameter of signal processing by introducing luminance-based adjustment coefficients that modify the raw sensor outputs. These coefficients are calculated based on the specific luminance characteristics of each colored light source and are applied to correct the detection signals, thereby maintaining reliability of color tone representation while using multiple colored light sources for comprehensive detection.
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 solution enhances color detection accuracy by equalizing sensor outputs across different light sources, thereby improving the reliability of color detection in biological tissue or microorganism culture environments.
Implementation Method 1
a sensor that includes a photodiode to detect light and is configured to produce an output corresponding to a degree of the detected light
Data Source
AI summary
A detection apparatus includes a sensor, a detection circuit, and a light source configured to emit light in a first color, a second color, and a third color. The detection circuit acquires a first output, a second output, and a third output that are outputs of the sensor corresponding to a period when the light in the first color is emitted, a period when the light in the second color is emitted, and a period when the light in the third color is emitted, respectively. The detection circuit adjusts at least two or more of the first, second, and third outputs based on adjustment coefficients derived so as to equalize a fourth output, a fifth output, and a sixth output. The fourth, fifth, and sixth outputs are outputs obtained when the sensor is directly irradiated with the light in the first, second, and third colors from the light source, respectively.