Multi-Directional Illumination System for Material Recognition
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Solution Overview
Problem
Existing material recognition methods are costly and complex, making it difficult to accurately determine the material of objects, especially with limitations in determining various materials and reliability issues.
Innovation Solution
An illumination system with multi-directional incident lights and a processing part that acquires and analyzes the intensity distributions of reflection lights to determine the material of a measurement target, using parameters such as area and reflection angles from both specular and diffuse reflections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If internal structure analysis method is used to recognize material, then measurement precision is improved, but device complexity and manufacturing cost increase significantly
Solution Approach 1:
The patent replaces complex internal structure analysis methods with an optical measurement system that uses incident light and reflection light detection. Instead of requiring invasive internal examination, the system uses optical properties (reflection characteristics) to determine material composition, thereby reducing device complexity while maintaining measurement precision.
Solution Approach 2:
The patent introduces an intermediary optical measurement process between the object and material determination. By measuring reflection light characteristics as an intermediary parameter, the system indirectly determines material composition without directly analyzing internal structure, simplifying the overall system while preserving accuracy.
2Measurement precision
If internal structure analysis method is used to recognize material, then measurement precision is improved, but manufacturing cost increases greatly
Solution Approach 1:
The patent employs relatively simple and inexpensive optical components (light sources, detectors, lenses) instead of expensive internal structure analysis equipment. These components can be manufactured at lower cost and are easier to produce, thereby reducing manufacturing cost while maintaining adequate measurement precision for material recognition.
Solution Approach 2:
The patent substitutes expensive mechanical/internal structure analysis systems with an optical measurement system that uses readily available optical components. This substitution dramatically reduces manufacturing cost while preserving the ability to accurately determine material composition through reflection characteristics.
3Measurement precision
If multi-directional incident lights are used to illuminate measurement target, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent divides the illumination system into multiple independent light sources positioned at different locations, each providing incident light from a specific direction. This segmentation allows the system to achieve multi-directional illumination with simple, modular components rather than requiring a single complex illumination device, thereby improving measurement precision while controlling device complexity.
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 easy and accurate material recognition at a lower cost compared to conventional systems, with improved precision and compact system design, allowing for convenient and precise determination of materials.
Implementation Method 1
The light-receiving part receives single-directional reflection lights reflected by the measurement target according to the multi-directional incident lights provided by the light-providing part
Data Source
AI summary
An illumination system includes a measurement stage on which a measurement target is located, a light-providing part having illumination sections providing multi-directional incident lights to the measurement target, a light-receiving part receiving single-directional reflection lights reflected by the measurement target according to the multi-directional incident lights, and a processing part that performs acquiring a first distribution of intensities the single-directional reflection lights with respect to the multi-directional incident lights, acquiring, from the first distribution, a second distribution of intensities of multi-directional reflections lights with respect to a single-directional incident light, and determining material of the measurement target based on parameters of the second distribution. A method of recognizing material using the illumination system and a computer readable non-transitory recording medium recording a program embodying the method are provided.