Portable Skin Lipid Detection Device Using Light Transmittance
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Solution Overview
Problem
Users face difficulties in determining their individual skin condition and selecting suitable cosmetic products without expert advice, leading to challenges in assessing treatment effectiveness and maintaining long-term motivation for cosmetic treatments.
Innovation Solution
A portable device comprising a test surface, camera, and electronic circuit, which determines skin fat content by measuring light transmittance changes upon contact with the skin, allowing for the assessment of skin condition and personalized cosmetic product recommendations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users use cosmetic products without expert advice, then they can access cosmetic treatments independently, but they cannot objectively assess treatment effectiveness
Solution Approach 1:
The system enables users to independently determine their skin condition and receive personalized product recommendations through automated analysis. The camera captures skin images, the processor analyzes skin parameters (oil content, hydration, texture), and the system generates care recommendations without requiring expert intervention, allowing users to self-assess and self-manage their skincare routine
Solution Approach 2:
The system provides continuous feedback by monitoring skin condition parameters over time and comparing them against target values. The processor evaluates treatment effectiveness by analyzing changes in skin oil content, hydration levels, and texture metrics, then adjusts product recommendations accordingly, enabling users to objectively assess whether their cosmetic treatments are working
2Reliability
If users lack means to assess treatment result at home, then expert advice remains necessary, but users cannot maintain long-term motivation for cosmetic treatment
Solution Approach 1:
The portable device enables users to perform reliable skin condition assessments at home without requiring visits to dermatologists or beauty salons. The system independently captures skin images, processes them to determine skin parameters, and provides actionable insights, making professional-grade assessment accessible and convenient for regular home use
Solution Approach 2:
The system maintains user motivation by providing continuous, objective feedback on treatment progress. By tracking skin condition parameters over time and displaying improvements (or areas needing adjustment), the system creates a visible record of treatment effectiveness that reinforces user commitment to long-term skincare routines
3Adaptability or versatility
If generic cosmetic products are used, then product availability is high, but product suitability for individual skin needs is low
Solution Approach 1:
The system determines skin condition for specific facial regions (T-zone, cheeks, forehead) separately, identifying areas with different oil content, hydration levels, and texture characteristics. Based on this localized analysis, it recommends different cosmetic products or application strategies for different facial zones, enabling highly personalized care that addresses specific regional needs rather than applying a one-size-fits-all approach
Solution Approach 2:
The system analyzes multiple skin parameters (oil content, hydration level, texture, pore size) and uses these quantitative measurements to match users with cosmetic products suited to their specific skin profile. By transforming subjective skin assessment into objective parameter-based evaluation, the system efficiently recommends appropriate products without requiring complex manual analysis
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 users to objectively assess their skin condition and receive tailored cosmetic product recommendations, improving treatment effectiveness and user motivation by providing personalized and effective skincare solutions.
Implementation Method 1
contacting the skin area with a test area, wherein the test area is designed in such a way that its light transmittance changes depending on a skin fat content
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
The invention relates to a method in various embodiments for determining a condition of the skin. The method can comprise: determining a skin lipid content, having: for at least one region of the skin (102H) of a user, contacting the skin region by means of a test area (104F), wherein the test area (104F) is configured in such a way that the transparency of the test area changes, depending on a skin lipid content, recording a quantity of light by means of a digital camera (178), wherein the recorded light is emitted by a light source (106), passes through the test area (104F), and reaches the camera (108), wherein the digital camera (108) is part of a portable device, comparing the quantity of recorded light with a reference quantity of light for a non-contacted test area (104F), and determining the skin lipid content by using the comparison, and determining the condition of the skin on the basis of the determined skin lipid content.