Laser Anti-Counterfeiting Pattern Processing and Detection
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Solution Overview
Problem
Current anti-counterfeiting methods for checks and other documents are inefficient and costly, relying on visual inspection which can lead to errors, and there is a need for rapid and cost-effective processing and detection of anti-counterfeiting patterns.
Innovation Solution
A laser processing system that uses a diffractive optical element and bi-prism to create fine patterns on a nanometer or micrometer scale, and a detection system that employs a laser measuring system to analyze these patterns for authenticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual inspection is used to detect anti-counterfeiting patterns, then detection cost is reduced, but detection accuracy and reliability deteriorate due to human error
Solution Approach 1:
The patent replaces the mechanical visual inspection system with an optical detection system using laser beams and photodetectors. The laser detection system irradiates the anti-counterfeiting pattern and detects reflected light characteristics, eliminating human error while maintaining cost-effectiveness through simple optical components.
Solution Approach 2:
The patent creates optical copies of the anti-counterfeiting pattern characteristics by detecting reflected laser light. The photodetector captures light reflection patterns that replicate the physical pattern's characteristics, enabling automated detection without direct human visual inspection.
2Productivity
If traditional processing methods are used for anti-counterfeiting patterns, then manufacturing cost is reduced, but processing speed and productivity deteriorate
Solution Approach 1:
The patent replaces traditional mechanical or chemical processing methods with laser processing. The laser beam precisely processes anti-counterfeiting patterns at high speed with nanometer or micrometer scale precision, dramatically increasing productivity while using relatively simple laser equipment.
3Reliability
If fine patterns of nanometer or micrometer scale are created, then anti-counterfeiting reliability is improved, but manufacturing precision requirements worsen
Solution Approach 1:
The patent uses laser processing to create fine patterns at nanometer or micrometer scale. The laser beam's inherent precision and controllability enable fabrication of extremely fine patterns without requiring complex mechanical positioning systems, achieving high manufacturing precision through optical field control.
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 quick and accurate processing and detection of anti-counterfeiting patterns, reducing errors and costs, and can be applied to various items such as checks, luxury goods, and documents.
Implementation Method 1
a diffractive optical element incident with the laser beam to be diffracted to be divided into a plurality of diffraction lights
Implementation Method 2
a first lens condensing the branched diffraction lights to induce a plurality of diffraction lights parallel to each other
Implementation Method 3
a second lens refracting the plurality of diffraction lights parallel to each other to be irradiated to a processed target
Data Source
AI summary
The present invention provides an anti-counterfeiting pattern processing apparatus and a method thereof that quickly process the anti-counterfeiting pattern with a low cost by forming a fine pattern of a nanometer or micrometer scale by using a laser processing system, and an apparatus and a method thereof detecting the anti-counterfeiting pattern of the micrometer or nanometer scale by using a laser measuring system.