Vibration Sensor Hairbrush for Accurate Hair Analysis
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Solution Overview
Problem
Existing hair analysis devices are often unreliable, inefficient, and designed primarily for professional use, with home-use devices relying on costly and difficult-to-apply imaging techniques.
Innovation Solution
A hairbrush system equipped with vibration sensors that measure the vibrations of the bristles during brushing, providing a vibration signal used to determine hair characteristics such as damage, thickness, and type, through a hair characteristic determination unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If imaging techniques are used for hair analysis in home-use devices, then hair characteristics can be evaluated, but the device becomes costly and difficult to apply
Solution Approach 1:
The patent replaces complex optical imaging systems with a simple vibration sensing mechanism. A vibration sensor measures the natural frequency of bristle vibrations during brushing, and this mechanical vibration data is processed to determine hair characteristics such as elasticity and damage level. This substitution dramatically simplifies the device while maintaining measurement capability.
2Measurement precision
If professional-grade hair analysis devices are used, then accurate hair evaluation is achieved, but the devices are not suitable for home use
Solution Approach 1:
The device enables consumers to perform their own hair analysis at home using a simplified brush with integrated vibration sensors. The system automatically measures vibration characteristics during normal brushing and processes the data to provide hair condition assessment, eliminating the need for professional operators while maintaining evaluation accuracy.
3Reliability
If vibration sensors are integrated into the hairbrush, then hair characteristics can be determined reliably during everyday brushing, but the device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single hairbrush device: the brush performs its traditional hair-combing function while simultaneously serving as a measurement platform with vibration sensors. The same brushing action that styles hair also generates the vibration data needed for analysis, making the device multi-functional without requiring separate specialized equipment.
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 reliable and accurate hair evaluation that is easy for users to perform in their everyday routine, providing valuable insights into hair quality and treatment effects.
Implementation Method 1
a vibration measurement providing unit for providing a vibration signal indicative of a result of a vibration measurement performed by one or more vibration sensors integrated into a hairbrush comprising a plurality of bristles, wherein the vibration measurements are performed by the vibration sensors during a brushing of the hair using the hairbrush and are indicative of vibrations of the bristles of the hairbrush during the brushing
Data Source
AI summary
The invention refers to an apparatus (120) for accessing hair characteristic while brushing hair of a subject, wherein the apparatus comprises a vibration measurement providing unit (121) for providing a vibration signal indicative of a result of a vibration measurement performed by one or more vibration sensors (112) integrated into a hairbrush (110) comprising a plurality of bristles (111). The vibration measurements are performed by the vibration sensors during a brushing of the hair using the hairbrush and are indicative of vibrations of the bristles of the hairbrush during the brushing. A hair characteristic determination unit (122) then determines a hair characteristic based on the vibration signal.