Polarized Light Collagen Measurement System
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Solution Overview
Problem
Current methods for measuring collagen denaturation in skin rejuvenation treatments are complex, time-consuming, and lack accuracy, particularly for non-invasive home-use systems, leading to safety concerns and inefficiencies due to subjective interpretation of light intensity and color changes.
Innovation Solution
A measurement system utilizing polarized light with specific wavelength ranges for constructive and destructive interference to determine collagen presence, employing a polychromatic light source and detectors to measure light intensity differences within these ranges, allowing for real-time monitoring of collagen denaturation during treatments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If birefringence measurement using polarized light is used to determine collagen presence, then collagen detection capability is improved, but measurement complexity and time consumption increase
Solution Approach 1:
The spectrum is segmented into multiple wavelength ranges, with at least one first wavelength range showing constructive interference and at least one second wavelength range showing destructive interference. By measuring light intensity in these segmented spectral regions, the system achieves accurate collagen detection while simplifying the measurement approach compared to full-spectrum analysis.
Solution Approach 2:
The system changes the measurement parameter from complex full-spectrum birefringence analysis to simplified light intensity measurements at specific wavelength ranges. This parameter transformation maintains collagen detection accuracy while significantly reducing measurement complexity and time requirements.
2Measurement precision
If multiple measurements are taken to derive mean and standard deviation for accurate collagen measurement, then measurement precision is improved, but time consumption increases
Solution Approach 1:
The system extracts only the essential information needed for collagen detection by measuring light intensity in specific wavelength ranges showing constructive and destructive interference. This extraction approach eliminates the need for multiple repeated measurements and statistical calculations, achieving accurate results in a single measurement.
Solution Approach 2:
The system performs preliminary spectral analysis to identify the specific wavelength ranges that show constructive and destructive interference patterns. Once these ranges are predetermined, subsequent collagen measurements can be quickly performed by simply comparing light intensities in these pre-identified ranges, eliminating the need for repeated measurements.
3Ease of operation
If subjective interpretation of color change and intensity is used to monitor collagen denaturation, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The system replaces the human visual system (subjective color and intensity perception) with optical detectors that objectively measure light intensity in specific wavelength ranges. This substitution maintains operational simplicity while dramatically improving measurement precision and eliminating inter-observer variability.
4Reliability
If considerable energy is directed to raise skin temperature above 65 degrees C for collagen denaturation, then treatment efficacy is improved, but risk of tissue damage and side effects increases
Solution Approach 1:
The system uses real-time measurement of light intensity differences in constructive and destructive interference wavelength ranges to monitor collagen denaturation progress. This feedback mechanism allows the treatment to be stopped precisely when denaturation is achieved, preventing over-treatment and associated tissue damage while maintaining treatment efficacy.
Solution Approach 2:
The treatment system dynamically adjusts based on real-time collagen denaturation measurements. By continuously monitoring the light intensity difference and comparing it to predetermined thresholds, the system can adapt the treatment parameters to achieve optimal denaturation while minimizing the risk of harmful effects.
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
This system provides a simple, accurate, and reliable method for collagen detection and denaturation monitoring, reducing the risk of over-treatment and adverse effects by quantitatively measuring light intensity differences, thus enhancing treatment efficacy and safety.
Implementation Method 1
an optical system, which comprises a light source for emitting light over a predetermined and/or controlled source wavelength range
Implementation Method 2
the optical system is predetermined and/or controlled such that the polarized light beam is focused at a target position between 100 micron and 1000 micron below the outer surface of the skin
Implementation Method 3
The spectrum of the polarized light reflected by natural collagen comprises a plurality of adjacent first and second wavelength ranges, wherein in said first wavelength ranges constructive interference prevails between the polarized light beam and the natural collagen, and wherein in said second wavelength ranges destructive interference prevails
Implementation Method 4
to direct light reflected from the target position in the skin to both the first detector and the second detector
Data Source
Figure 1
Figure 2A~2B
AI summary
A measurement system for light-based measurement of collagen, using a first light intensity and a second light intensity according to the invention, comprises a light source (120) for emitting a light beam having a source wavelength range and an optical system (130) to polarize light within the source wavelength range, thereby generating a polarized light beam (140), and to direct and focus the polarized light beam (140) to a target position inside the skin (160) at a predetermined focus depth below an outer surface of the skin. The measurement system further comprises a first detector (150) and a second detector