Integrated Image and Spectrum Sensor for Organic Material Detection
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Solution Overview
Problem
Conventional spectrum sensors used in spectrochemistry are not suitable for everyday life detection of residual agricultural chemicals in food or measurement of organic materials, being expensive and not easily integrated with image sensors.
Innovation Solution
An image sensor with a spectrum sensor region, incorporating a plurality of light-detection parts and a spectrum sensor region with narrow-width band pass filters, allowing for the measurement of organic material structure and quantity using a semiconductor process, and an image signal processor for data analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional high-precision spectroscope and high-sensitivity sensors are used for spectrum detection, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the spectrum sensor region with the image sensor region into a single integrated sensor structure. The spectrum sensor region includes multiple light detection parts with different spectral sensitivity characteristics, allowing spectrum detection functionality to be merged within the image sensor chip, thereby reducing system complexity and cost while maintaining measurement precision
Solution Approach 2:
The integrated sensor achieves multi-functionality by enabling both image capture and spectrum detection within a single device. The image sensor region captures visual information while the spectrum sensor region simultaneously performs spectral analysis, eliminating the need for separate spectrograph equipment and making the system suitable for everyday use
2Measurement precision
If conventional spectrum sensors are used for organic material detection, then measurement precision is improved, but ease of manufacture deteriorates
Solution Approach 1:
The spectrum sensor region is integrated into the image sensor region using semiconductor fabrication processes, allowing both functions to be manufactured together on the same chip. This integration significantly reduces manufacturing costs compared to assembling separate high-precision spectroscope and sensor components, while maintaining the capability to detect organic material structure and quantity
Solution Approach 2:
The patent employs narrow-width band pass filters in the spectrum sensor region to selectively detect specific spectral ranges corresponding to organic material characteristics. By optimizing the filter parameters and light detection part characteristics, the system achieves accurate organic material detection using standard semiconductor manufacturing processes
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 a low-cost, commercially viable solution to measure organic material structure and quantity in objects, facilitating the detection of residual chemicals through image processing, providing reliable results.
Implementation Method 1
a spectrum sensor region with a narrow-width band pass filter
Implementation Method 2
an image sensor region having a plurality of light-detection parts
Data Source
AI summary
There is provided an image sensor with a spectrum sensor including an image sensor region having a plurality of light-detection parts and a spectrum sensor region located in the image sensor region. The present invention provides an advantage of manufacturing a low-cost image sensor with a spectrum sensor. Thus, the image sensor with a spectrum sensor is commercially available to measure the structure and quantity of an organic material in an object in a simple manner.