LED Module Frame Absorbing Harmful Electromagnetic Waves

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Solution Overview

Problem

LED modules generating infrared light for skin care and treatment emit harmful electromagnetic waves, leading to side effects such as sleep disorders, indigestion, and headaches when used for extended periods.

Innovation Solution

An LED module with a frame unit containing a conductive substrate layer, a first absorption layer made of conductive materials like polypyrole or polyaniline, and a second absorption layer made of magnetic materials like ferrite, which absorb electromagnetic waves by generating induced current and magnetic relaxation, respectively, to minimize exposure to harmful radiation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If LED module generates infrared light for skin care and treatment, then skin care and medical treatment effect is improved, but harmful electromagnetic waves are emitted causing side effects

Engineering Contradiction:

Improveskin care and medical treatment effectVSAvoidharmful electromagnetic waves

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent converts harmful electromagnetic waves into useful thermal energy through absorption layers. The first absorption layer (conductive material) and second absorption layer (magnetic material) capture electromagnetic waves and transform them into heat via induced current and magnetic relaxation, respectively. This eliminates harmful radiation while utilizing the energy for beneficial thermal effects in skin treatment.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent introduces absorption layers as intermediary components between the light emission unit and the external environment. These layers act as mediators that selectively interact with electromagnetic waves - the conductive material layer handles electric field components while the magnetic material layer handles magnetic field components, thereby protecting users from harmful radiation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Duration of action of moving object

If LED module emits light for extended periods, then treatment duration is increased, but side effects from electromagnetic wave exposure increase

Engineering Contradiction:

Improvetreatment durationVSAvoidside effects from electromagnetic waves

Core Design Contradiction:

Duration of action of moving objectVSObject-affected harmful factors

Solution Approach 1:

The absorption layers continuously convert harmful electromagnetic waves into thermal energy during extended operation. This allows the LED module to operate for longer periods without accumulating harmful radiation exposure, as the energy is continuously transformed into beneficial heat for skin treatment rather than causing side effects.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Object-affected harmful factors

If absorption layers are added to absorb electromagnetic waves, then harmful radiation is reduced, but device complexity increases

Engineering Contradiction:

Improveharmful radiationVSAvoiddevice structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent employs composite material structures where a conductive material layer and a magnetic material layer are combined in sequence. This composite approach allows simultaneous absorption of different components of electromagnetic waves (electric and magnetic fields) using materials with complementary properties, achieving effective radiation reduction through material composition rather than complex mechanical structures.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The absorption function is segmented into two distinct layers: a first absorption layer with conductive material for absorbing electric field components, and a second absorption layer with magnetic material for absorbing magnetic field components. This segmentation allows each layer to specialize in absorbing specific electromagnetic wave components, improving overall absorption efficiency while maintaining a relatively simple layered structure.

Inventive Principle:

Principle #1Segmentation

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

Effectively absorbs harmful electromagnetic waves, reducing side effects and allowing safe prolonged use by converting them into thermal energy, thereby minimizing health risks associated with long-term exposure.

Implementation Method 1

the first absorption layer may absorb the electromagnetic waves by generating induced current on a surface by the electromagnetic waves and generating thermal energy as the induced current is applied to an internal resistance

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

generating thermal energy as the induced current is applied to an internal resistance

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Implementation Method 3

the second absorption layer may be subject to magnetic relaxation by the electromagnetic waves to absorb the electromagnetic waves

Methodology Applied

Scientific EffectMagnetic relaxation:

Data Source

PatentUS10468561B2LED module for increasing effective wavelengths output

Publication Date: 2019.11.05 BOO JA

AI summary

An LED module for increasing effective wavelengths output includes a light emission unit configured to be supplied with electric energy to generate light; and a frame unit where an installation space for installing the light emission unit is formed, and that absorbs electromagnetic waves being generated in the light emission unit. During operation, harmful electromagnetic waves other than the effective waves beneficial to human body may be absorbed. Accordingly, even when the human body is exposed to the LED module for a long period of time, the side effects caused by the electromagnetic waves can be minimized.