Smartphone Skin Analysis Attachment for Accurate Color Matching

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Solution Overview

Problem

Existing skin care and cosmetics industries face challenges in accurately assessing skin type, quantitatively demonstrating product effectiveness, and matching cosmetics colors to consumers' skin tones due to inaccuracy, limited measurement scope, high cost, and deployment difficulties of specialized hardware.

Innovation Solution

A skin analysis device that attaches to a smartphone, utilizing a camera, passive and active measurement assisters, and a processor to perform skin characteristic measurements, including color calibration and light source assemblies, to provide comprehensive skin analysis and recommend products based on these measurements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If specialized standalone skin analysis hardware is used, then measurement precision is improved, but device complexity and cost increase

Engineering Contradiction:
Improveskin characteristic measurement accuracyVSAvoidhardware complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple skin analysis functions (camera, light sources, diffusers, sensors) into a single attachment device that interfaces with a smartphone. This merging of components into an integrated unit reduces overall system complexity while maintaining measurement precision through coordinated operation of all components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The skin analysis attachment is designed to work with various smartphone models and can perform multiple skin characteristic measurements (porosity, elasticity, moisture, color). This multi-functionality allows a single device to replace multiple specialized tools, reducing complexity while expanding measurement capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If comprehensive skin characteristic measurement is implemented, then measurement precision is improved, but device complexity and cost increase

Engineering Contradiction:
Improveskin characteristic measurement accuracyVSAvoidmanufacturing complexity
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The attachment device is segmented into distinct functional modules: camera component, light source assembly with multiple LEDs, diffuser elements, and sensor components. Each module can be manufactured separately using standard processes, then assembled into the final product. This segmentation reduces manufacturing complexity while enabling comprehensive skin measurement capabilities.

Inventive Principle:
Principle #1Segmentation

3Measurement precision

If specialized hardware is deployed, then measurement precision is improved, but ease of operation and deployment difficulty worsen

Engineering Contradiction:
Improveskin characteristic measurement accuracyVSAvoiddeployment ease
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The smartphone serves as an intermediary between the simple attachment hardware and the complex data processing requirements. The attachment captures raw skin images and data, while the smartphone's processor and software handle the complex analysis, calibration, and result generation. This division makes the device easy to operate while maintaining high measurement precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system performs self-calibration using the smartphone's existing camera and processing capabilities. The attachment device automatically adjusts its light sources and camera settings based on the specific smartphone it is paired with, eliminating the need for manual calibration by users or specialized deployment procedures.

Inventive Principle:
Principle #25Self-service

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 and cost-effective skin analysis, allowing for personalized product recommendations and color matching, leveraging existing smartphone technology for widespread deployment and user-friendly operation.

Implementation Method 1

an enclosure comprising an enclosure body, configured to be removably connected to the electronic device; one or more passive skin characteristic measurement assisters, connected to the enclosure and configured to assist one or more skin characteristic measurement devices take a skin characteristic sample of a skin characteristic of the user

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 2

a light source assembly, wherein the light source assembly comprises: a light source board with one or more individually controllable light sources thereon that illuminate the user when the camera captures an image of the user

Methodology Applied
Scientific EffectLight emission: Light

Implementation Method 3

a diffuser that diffuses one or more light sources that pass through the diffuser

Methodology Applied
Scientific EffectLight diffusion: Diffusion

Implementation Method 4

a color calibrator assembly, disposed in front of the camera when the enclosure is connected to the electronic device

Methodology Applied
Scientific EffectColor calibration via light reflection: Reflection

Data Source

PatentUS12357229B2Systems and method for skin analysis using electronic devices
Publication Date: 2025.07.15 FITSKIN INC
  • US12357229B2 patent drawing
  • US12357229B2 patent drawing
  • US12357229B2 patent drawing

AI summary

There is a skin analysis device for attachment to an electronic device of a human user, the electronic device having at least one skin characteristic measurement device, the skin analysis device comprising an enclosure comprising an enclosure body, configured to be removably connected to the electronic device and one or more skin characteristic measurement assisters, connected to the enclosure and configured to assist one or more skin characteristic measurement devices take a skin characteristic sample of a skin characteristic of the human user.