Magneto-Optic Anti-Counterfeiting Verification Mechanism

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Solution Overview

Problem

Conventional methods for preventing counterfeit and alteration of goods are difficult for ordinary users to verify and are costly to manufacture, as they rely on complex techniques like fine patterns, braille, holograms, and RFID.

Innovation Solution

An apparatus using a magnetically responsive substance that changes reflected or transmitted light when a magnetic field is applied, with a movable part that alters the magnetic field's intensity, direction, or pattern in response to external stimuli, allowing users to easily determine authenticity by observing color or light transmittance changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional techniques (fine patterns, braille, hologram, RFID) are used to prevent counterfeit and alteration, then the reliability of counterfeit prevention is improved, but the device complexity and manufacturing cost increase significantly

Engineering Contradiction:

Improvecounterfeit prevention reliabilityVSAvoidverification system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces complex electronic verification systems (RFID, holograms) with a simple magnetic field-based verification system. The magnetically responsive substance changes its optical properties (color, light transmittance) when exposed to a magnetic field, allowing users to verify authenticity through simple visual observation rather than requiring complex scanning or reading equipment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes color changes and light transmittance changes of the magnetically responsive substance as the core verification mechanism. When a magnetic field is applied, the substance transitions between different optical states (e.g., colored vs. colorless, opaque vs. transparent), providing a clear visual indicator of authenticity that is easy for ordinary users to detect without specialized equipment.

Inventive Principle:

Principle #32Color changes

2Reliability

Engineering Contradiction:

Improvecounterfeit prevention reliabilityVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent employs a magnetically responsive substance that can be produced at low cost and integrated into the product or its packaging. This substance serves as a single-use verification element that provides reliable counterfeit prevention without requiring expensive manufacturing processes associated with holograms, RFID tags, or precision fine pattern printing.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent changes the physical state or optical properties of the magnetically responsive substance through application of a magnetic field. This parameter change (from one optical state to another) provides a reliable verification mechanism that is inexpensive to implement, as it relies on the intrinsic magnetic properties of the substance rather than expensive manufacturing techniques.

Inventive Principle:

Principle #35Parameter changes

3Reliability

Engineering Contradiction:

Improvecounterfeit prevention reliabilityVSAvoiduser verification ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent enables ordinary users to perform counterfeit verification themselves without requiring assistance from specialists or complex equipment. The magnetically responsive substance provides clear visual feedback (color change, light transmittance change) that users can observe directly, making the verification process accessible to anyone regardless of technical expertise.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent uses color changes and light transmittance changes as the verification mechanism, which are naturally detectable by human eyes. This eliminates the need for specialized readers or equipment required by RFID or hologram verification, allowing users to simply look at the product and determine its authenticity through visual observation of the magnetic substance's optical properties.

Inventive Principle:

Principle #32Color changes

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 ordinary users to verify the authenticity of goods by simply operating the movable part and observing the magnetically responsive substance, providing a cost-effective and user-friendly solution for preventing counterfeiting and alteration.

Implementation Method 1

a magnetically responsive substance in which a reflected light or a transmitted light is changed when a magnetic field applied thereto is changed

Methodology Applied

Scientific EffectMagneto-optic effect: Magneto-Optic Effects

Data Source

PatentUS10302570B2Apparatus for preventing counterfeiting and alteration

Publication Date: 2019.05.28 NANOBRICK

AI summary

An apparatus for preventing counterfeiting and alteration according to the present invention includes a magnetic changeable substance carrier part containing a magnetic changeable substance to vary reflected or transmitted light rays as an applied magnetic field is varied; a magnetic field generation part for generating a magnetic field applied to the magnetic changeable substance; and a moveable part for varying at least one of the intensity, direction and pattern of the magnetic field applied to the magnetic changeable substance according to an externally applied stimulus so as to change the appearance of the magnetic changeable substance.