Makeup Device for Skin Color Uniformity via Optical Measurement
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Solution Overview
Problem
Existing makeup technologies fail to provide a natural and accurate coverage of skin non-uniformities in color and gloss, as they do not account for the varying skin tones and require extensive technical expertise and time to apply.
Innovation Solution
A method and device that measure optical characteristics like color and gloss at multiple locations on the skin, calculating an intermediate value to apply a cosmetic composition that blends seamlessly, using self-tanning or whitening agents to create a uniform appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If makeup compositions with predefined colors are used to mask skin non-uniformities, then covering power is improved, but the natural appearance deteriorates because the composition color does not match the purchaser's skin color
Solution Approach 1:
The patent applies parameter changes by measuring the actual skin color at multiple locations and dynamically adjusting the makeup composition color parameters to match the measured skin tones. Instead of using fixed predefined colors, the system varies the color parameters based on the specific skin characteristics of each user, resolving the contradiction between covering power and natural appearance.
Solution Approach 2:
The patent implements self-service by enabling the makeup system to automatically measure skin color, calculate appropriate composition colors, and apply the makeup without requiring manual color matching by the user. The system serves itself by autonomously adapting to the user's skin characteristics, eliminating the need for technical expertise in color selection.
2Reliability
If the entire face is masked with makeup composition to hide color differences, then color uniformity is improved, but the natural appearance deteriorates because the face becomes visibly made up
Solution Approach 1:
The patent applies local quality by measuring skin color at multiple specific locations across the face and applying makeup compositions with colors tailored to each measured location. This localized approach ensures that each area receives the appropriate color correction, achieving overall uniformity while maintaining the natural appearance of different facial regions.
Solution Approach 2:
The patent uses partial action by applying makeup only to specific locations where skin non-uniformities are detected, rather than uniformly masking the entire face. This selective application corrects color differences locally while preserving the natural appearance of areas that do not require correction.
3Measurement precision
If different colored compositions are applied to different skin portions to account for color variations, then color accuracy is improved, but the time required and technical competence needed increase significantly
Solution Approach 1:
The patent implements self-service by automating the entire process of skin color measurement, composition color calculation, and makeup application. The system independently handles all tasks without requiring the user to manually select or apply different colored compositions, thereby maintaining color accuracy while dramatically reducing the time and technical expertise required.
Solution Approach 2:
The patent applies feedback by using the measured skin color data from multiple locations to dynamically calculate and adjust the composition colors for each area. This closed-loop approach ensures color accuracy is maintained while the automated feedback mechanism eliminates the need for manual intervention, reducing both time and technical requirements.
4Measurement precision
If manual color matching and application is performed to achieve natural makeup, then color accuracy is improved, but the ease of operation deteriorates due to the technical expertise required
Solution Approach 1:
The patent implements self-service by enabling the makeup system to automatically perform skin color measurement, calculate appropriate composition colors, and guide or perform the application process. This automation maintains color accuracy while eliminating the need for the user to possess technical expertise in color matching and makeup application.
Solution Approach 2:
The patent replaces the manual mechanical process of color matching and application with an automated optical and computational system. The system uses optical sensors to measure skin color, computational algorithms to determine appropriate composition colors, and automated application mechanisms, thereby maintaining precision while removing the need for human technical skill.
Data Source
AI summary
The present invention provides a method of making up human keratinous material, the method comprising: taking at least two measurements of an optical characteristic of said keratinous material at different locations; and applying a composition to the keratinous material, the composition modifying a characteristic of the appearance of said keratinous material so as to give it an optical characteristic intermediate between the measured optical characteristics.