Ring Light Illumination for Accurate Non-Invasive Analyte Testing
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Solution Overview
Problem
Existing non-invasive glucose testing methods are susceptible to environmental light interference, affecting accuracy and making miniaturization challenging.
Innovation Solution
A system with a ring-shaped light source providing both infrared and ultraviolet light, combined with bandpass filters, illuminates the skin to obtain analyte distribution and spectral data, using fluorescence spectroscopy for non-invasive testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If ambient light is used for illumination in non-invasive glucose testing, then the testing can be performed without additional light sources, but the measurement precision deteriorates due to environmental light interference
Solution Approach 1:
The patent introduces a dedicated light source as an intermediary element between the illumination requirement and the detection system. This light source emits specific wavelengths (including infrared and visible light) that can penetrate the skin and provide consistent illumination without environmental interference, while the detection system captures the reflected or transmitted light to measure glucose concentration in blood vessels.
Solution Approach 2:
The patent changes the illumination parameters by using specific wavelength ranges (infrared and visible light) instead of ambient light. The light source emits light with controlled spectral characteristics that optimize penetration through skin tissue and provide sufficient signal strength for accurate measurement, thereby improving measurement precision while maintaining system simplicity.
2Measurement precision
If a dedicated light source is introduced to eliminate environmental light interference, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
The patent designs the light source to serve multiple functions: it provides illumination for glucose measurement, enables penetration through skin tissue via specific wavelength selection, and can operate in different modes (infrared and visible light). This multi-functionality reduces the need for separate components, thereby improving measurement precision without proportionally increasing device complexity.
3Loss of information
If infrared and ultraviolet light sources are used to obtain both distribution and spectral data, then the information completeness improves, but the energy consumption increases
Solution Approach 1:
The patent segments the light source into different wavelength components (infrared and visible light sections) that can operate independently or simultaneously. Each section targets specific information: infrared light provides penetration depth and distribution data, while visible light provides spectral data. This segmentation allows selective activation based on measurement requirements, reducing unnecessary energy consumption while maintaining information completeness.
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 system provides stable, uniform illumination, enabling accurate analyte concentration measurement without electrochemical reactions, facilitating miniaturization and real-time testing.
Implementation Method 1
The light source is capable of providing light within a preset wavelength range
Implementation Method 2
a wavelength range of light provided by the light source covers both a wavelength range within which analyte distribution data can be obtained and a wavelength range within which analyte spectral data can be obtained
Implementation Method 3
a first bandpass filter is also disposed in the shell, and the first bandpass filter is located between the light source and the imaging area; and the first bandpass filter allows the light within the preset wavelength range to pass through and light outside the preset wavelength range to be cut off
Implementation Method 4
using fluorescence spectroscopy for non-invasive testing
Data Source
AI summary
The present invention provides a system for illuminating an analyte and a system for testing an analyte which relate to the field of optical analysis. The system for illuminating the analyte includes a shell and a light source. The light source is capable of providing light within a preset wavelength range; and the shell is capable of fitting a tested part of a tested object and forming an imaging area at a fitting position, and the light source illuminates the imaging area. According to this application, a wavelength range of light provided by the light source covers both a wavelength range within which analyte distribution data can be obtained and a wavelength range within which analyte spectral data can be obtained, and the light source is set as a ring-shaped light source, to provide stable and uniform illumination for the imaging area.