Light Source Module Optimizing Skin Tone via Spectral Segmentation
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Solution Overview
Problem
Current illuminating devices fail to effectively improve the impression of skin color in various lighting environments, which affects personal appearance and social attraction.
Innovation Solution
A light source module that adjusts the peak wavelength, peak intensity, and chromaticity coordinates of blue, red, and yellow-green light to optimize skin color perception, using a combination of light-emitting units and phosphors to emit irradiation light within specific ranges, ensuring improved skin color impression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional illuminating devices are used, then general lighting function is provided, but the impression of skin color cannot be improved
Solution Approach 1:
The light source module is segmented into three independent light-emitting units, each responsible for a specific wavelength range (blue light 440-460nm, red light 610-650nm, yellow-green light 515-540nm). This segmentation allows precise control over the spectral composition to optimize skin color impression while maintaining manageable device complexity through modular design.
Solution Approach 2:
Each light-emitting unit is designed with specific local quality characteristics - different peak wavelengths and chromaticity coordinates tailored to their respective color ranges. The blue light unit uses specific phosphors (first phosphor with 470-490nm peak, second phosphor with 520-540nm peak) to achieve precise spectral distribution, while red and yellow-green units have their own optimized phosphor combinations, allowing each region of the spectrum to contribute optimally to skin color enhancement.
2Manufacturing precision
If the spectral distribution is precisely controlled to improve skin color impression, then lighting complexity increases
Solution Approach 1:
The patent precisely controls key spectral parameters including peak wavelengths (blue: 440-460nm, red: 610-650nm, yellow-green: 515-540nm), chromaticity coordinates (x and y values within specific ranges), and intensity ratios (red light intensity 30-70% of blue, yellow-green light intensity 30-70% of blue). By defining specific parameter ranges rather than exact values, the design achieves manufacturing precision while allowing flexibility in implementation, balancing precision requirements with practical 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
The solution significantly enhances the whiteness, ruddiness, health, and naturalness of skin appearance by adjusting the spectral distribution of light, providing a more realistic and aesthetically pleasing skin tone.
Implementation Method 1
a blue light generating portion, a red light generating portion and a yellow-green light generating portion
Implementation Method 2
each comprising a light-emitting unit and a phosphor
Data Source
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AI summary
The present invention discloses a light source module and an illuminating device using the same, including adjusting the peak wavelength, the peak intensity and the chromaticity coordinate of the blue light, the red light and the yellow-green light in the irradiation light emitted by the light source module to be within the preset ranges, respectively, so as to achieve improving the impression of skin color of a person's skin by the irradiation light emitted by the light source module.