Detector With Reflector Extensions For Particle Analysis
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Solution Overview
Problem
Current detectors lack the capability for efficient qualitative and quantitative analysis of particle type, amount, and density simultaneously, and are not compact enough for practical applications in fields like semiconductors and medicine.
Innovation Solution
A detector design featuring a light source unit emitting various wavelength bands, a reflector with extensions, and multiple sensor units for sensing reflected, scattered, and fluorescent light, allowing for simultaneous qualitative and quantitative analysis of particles, with a compact configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensor units and light sources are integrated for simultaneous qualitative and quantitative analysis, then detection capability and sensitivity are improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sensor units (first sensor unit for reflected light, second sensor unit for scattered/fluorescent light) and multiple light sources (emitting different wavelength bands) into a single integrated detector device. This merging allows simultaneous qualitative and quantitative analysis of particles, improving detection capability while managing device complexity through unified design
Solution Approach 2:
The detector is designed with multi-functional capabilities to perform both qualitative analysis (particle type identification through different wavelength detection) and quantitative analysis (particle amount and density measurement) simultaneously. The light source unit can emit multiple wavelength bands (UV, visible, infrared) to detect different particle types, while sensor units measure various light interactions (reflected, scattered, fluorescent) to provide comprehensive particle information
2Volume of moving object
If the detector is designed for compact configuration, then ease of application and portability are improved, but space for optical components is reduced
Solution Approach 1:
The patent employs three-dimensional spatial arrangement of optical components within the sensing space. The light source, reflector with extensions, and sensor units are positioned in specific three-dimensional coordinates to optimize light paths. The reflector extensions are angled to redirect light efficiently, allowing compact packaging while maintaining sufficient optical path lengths for effective particle detection
Solution Approach 2:
The detector design nests multiple functional components within a compact sensing space. The light source unit, reflector, sample supply, and sensor units are arranged in a nested configuration where components are positioned to maximize space utilization. The reflector with extensions folds or angles light paths back through the sensing space, effectively nesting the optical path within a small physical footprint
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 detector achieves high detectability of particles with enhanced sensitivity and compactness, enabling efficient analysis of dust, germs, molds, and viruses in a sample, improving detection efficiency and miniaturization.
Implementation Method 1
a reflector for reflecting the light
Implementation Method 2
a second sensor unit for sensing at least one of scattered light and fluorescence by the sample
Implementation Method 3
a second sensor unit for sensing at least one of scattered light and fluorescence by the sample
Data Source
AI summary
A detector has an internal sensing space, and includes a light source unit for emitting light into the sensing space, a reflector for reflecting the light, a sample supply for providing a sample into a path of the light, a first sensor unit for sensing the light reflected by the reflector, and a second sensor unit for sensing at least one of scattered light and fluorescence by the sample. The light source and the first and second sensor units are arranged in the sensing space.