Personalized Cosmetic Spectral Matching System
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Solution Overview
Problem
Current methods for customizing cosmetics based on skin conditions are inadequate, as they fail to accurately mimic preferred skin conditions and do not effectively utilize spectral analysis to provide personalized cosmetic compositions.
Innovation Solution
A method and system that photograph the visible spectrum of a subject's skin, generate a spectral comparison table, and match a personalized cosmetic composition to display a customized proposal, using a computer with a processor and memory, and an image display unit to show the proposed cosmetic product.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional color matching methods using yellow, red, and black pigments on a white base are used, then cosmetic products can be manufactured with standard color formulations, but they fail to accurately mimic preferred skin conditions and cannot provide sufficient information for mimicking spectral changes in the positive direction
Solution Approach 1:
The patent transforms cosmetic formulation from traditional color-mixing parameters (yellow, red, black pigments) to spectral parameters (wavelength-specific reflectance values). By measuring and matching the full visible spectrum (380-780nm) of skin, the system determines precise pigment combinations that replicate target spectral characteristics, enabling accurate skin condition mimicry while maintaining manufacturability through standardized spectral measurement protocols
Solution Approach 2:
The patent replaces subjective visual color assessment with objective spectral measurement and analysis. Instead of relying on human perception and traditional color matching, the system uses spectrophotometers to capture quantitative reflectance data across the visible spectrum, processes this data through algorithms to determine optimal pigment formulations, and validates results through comparative spectral analysis, thereby significantly improving measurement precision
2Adaptability or versatility
If spectral analysis is implemented to provide personalized cosmetic compositions, then accurate customization can be achieved, but the complexity of the system increases requiring specialized equipment and processing
Solution Approach 1:
The patent creates a multi-functional integrated system that combines spectral measurement, data processing, formulation calculation, and result display in one platform. The spectrophotometer captures skin reflectance data, the processor analyzes spectral patterns and compares them against a database of target skin conditions, the system calculates optimal pigment ratios, and the display presents both numerical results and visual predictions. This universal system handles diverse skin types and desired effects through a single standardized workflow, making advanced spectral analysis accessible without requiring separate specialized equipment for each function
Solution Approach 2:
The patent introduces a spectral database as an intermediary between skin measurement and cosmetic formulation. The database stores pre-measured spectral characteristics of various skin conditions (dull, tired, dehydrated, etc.) and serves as a reference for comparing against individual skin measurements. This intermediary layer enables the system to translate complex spectral data into meaningful cosmetic recommendations by matching patterns against known skin conditions, thereby simplifying the customization process while maintaining high adaptability
3Ease of manufacture
If conventional brightness analysis using L, a, b color system is used, then simple brightness changes can be detected, but insufficient information is provided for mimicking properties and unexpected color changes may occur when combining with skin color
Solution Approach 1:
The patent segments the continuous visible spectrum into multiple discrete wavelength bands (380-780nm divided into numerous narrow bands) for independent analysis. Instead of treating color as a single overall brightness value, the system measures and analyzes reflectance at each wavelength separately, identifying which specific spectral regions contribute to desired skin effects. This segmentation enables precise control over color outcomes by adjusting pigment combinations to target specific wavelength ranges, preventing unexpected color shifts while maintaining formulation feasibility through systematic wavelength-by-wavelength optimization
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 accurate customization of cosmetic compositions to mimic preferred skin conditions, providing a predicted display of how the product would appear on the subject's skin, improving the accuracy of skin analysis and cosmetic matching.
Implementation Method 1
photographing a visible spectrum of a skin of a subject to be measured
Data Source
AI summary
The present invention provides a method for proposing personalized cosmetics and a system for implementing the same, the method comprising the steps of: photographing the visible spectrum of the skin of a subject to be measured; mapping a personalized visible spectrum to the measured visible spectrum of the skin so as to generate a spectral comparison table; matching a personalized composition to the spectral comparison table; and displaying the matched personalized composition on an image display unit.