Grey Hair Removal Comb With Scalp-Triggered Root Detection

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing methods for removing grey hairs from their roots are inefficient and often result in incomplete removal, with grey hairs being cut from the middle, leading to intertwining with other hairs and repeated cutting, and leaving residual grey hairs that affect personal appearance.

Innovation Solution

A grey hair removal component with a sensing unit at the end of the housing that contacts the scalp to initiate operation, combined with an identification unit to accurately identify grey hairs and a removal unit to remove them from the root using various energy types, ensuring precise and complete removal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If grey hairs are cut from the middle position away from the scalp, then the cutting operation can be performed more easily, but the residual grey hairs remain long and affect personal appearance

Engineering Contradiction:

Improveease of cutting operationVSAvoidlength of residual grey hair

Core Design Contradiction:

Ease of operationVSShape

Solution Approach 1:

The patent replaces the traditional mechanical cutting approach with an optical-mechanical-electrical integrated system. A light source illuminates the scalp area, a sensor detects grey hairs based on their optical properties (grey hairs reflect light differently than colored hairs), and an electromagnet actuates the cutting blade only when a grey hair is detected. This substitution enables precise identification and cutting at the root position, solving the contradiction between ease of operation and residual hair length.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If grey hairs are cut from the middle position, then the cutting process can be completed, but the cut hairs intertwine with other hairs making continued identification and cutting difficult

Engineering Contradiction:

Improvecompletion of cutting processVSAvoiddifficulty of continued identification and cutting

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The patent applies preliminary action by detecting and cutting grey hairs at their root position before they can intertwine with other hairs. The light source and sensor are positioned to scan the scalp surface, identifying grey hairs at the source. The electromagnet actuates the blade to cut immediately at the root, preventing the cut hair ends from mixing with surrounding hairs and maintaining operational ease throughout the process.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If multiple repeated cutting operations are performed on grey hairs, then more grey hairs can be removed, but the process becomes more complex and time-consuming

Engineering Contradiction:

Improvenumber of grey hairs removedVSAvoidtime for repeated cutting operations

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent replaces manual repeated cutting operations with an automated optical-mechanical-electrical system. The light source continuously illuminates the scalp, the sensor automatically detects grey hairs based on optical contrast, and the electromagnet actuates the blade on demand. This automation eliminates the need for multiple manual cutting passes, reducing both the complexity and time required while increasing the number of grey hairs removed efficiently.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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

The solution enables easy and effective removal of grey hairs from the root, reducing residual grey hairs and enhancing personal appearance by leaving only colored hairs, while being safe and efficient for different hair types and styles.

Implementation Method 1

a sensing unit arranged at the end of the housing, and the sensing unit responds to the contact of the component with the scalp and outputs a start signal

Methodology Applied

Scientific EffectPressure sensing: Pressure Increase

Implementation Method 2

the identification unit identifies a grey hair, outputting a removal signal

Methodology Applied

Scientific EffectLight reflection and absorption: Reflection

Implementation Method 3

the grey hair removal unit uses a combination of one or more of light energy removal, force removal, electrical energy removal, magnetic energy removal, sound energy removal, or thermal energy removal to remove the identified grey hair

Methodology Applied

Scientific EffectLight energy removal: Laser Ablation

Implementation Method 4

Methodology Applied

Scientific EffectThermal energy removal: Heating

Implementation Method 5

Methodology Applied

Scientific EffectElectrical energy removal: Electrical Impedance Tomography

Data Source

PatentUS12498315B2Grey hair removal component, hair comb and system

Publication Date: 2025.12.16 BAO JIANBIN

AI summary

The disclosure provides a grey hair removal component, and a grey hair removal comb and a grey hair removal system composed of several grey hair removal components. The grey hair removal component includes at least one housing, and at least one identification unit and a grey hair removal unit arranged within the housing (0), and further includes a sensing unit arranged at an end of the housing, and the sensing unit responds to the contact of the component with a scalp and outputs a start signal; the identification unit identifies a grey hair in response to the start signal and outputs a removal signal; and the grey hair removal unit removes the identified grey hair based on the removal signal. By means of using the grey hair removal component and the grey hair removal system to scan the surface of the entire scalp (9), the aims of removing all grey hair and leaving colored hair can be achieved, and enhancing the personal appearance of a user.