Covert UV IR Security Marks Blending with Object Texture
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Solution Overview
Problem
Existing security features for valuable objects are often visible and can be easily detected, lacking covertness and robustness against counterfeiting and forgery.
Innovation Solution
A security feature that blends into the object's inherent characteristics, using additional marks that are randomly distributed, small, and similar in size, shape, and color to pre-existing marks, which are only visible under UV or IR light, and encoded with machine-readable information using channel coding and error correction algorithms, ensuring covertness and high security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If visible security features are used, then detection capability is improved, but covertness deteriorates
Solution Approach 1:
The patent uses marks that are invisible under normal visible light but become detectable under UV or IR illumination. The marks have different optical properties under different wavelengths, allowing them to remain covert in normal conditions while being detectable during authentication. This resolves the contradiction by enabling the security feature to adapt its visibility based on the detection conditions.
2Object-affected harmful factors
If security features are made covert, then covertness is improved, but detection capability deteriorates
Solution Approach 1:
The patent introduces UV or IR light as an intermediary medium to enable detection of the covert marks. The marks themselves remain invisible under normal conditions, but the intermediary illumination reveals them during authentication. This allows the security feature to maintain covertness while still providing reliable detection capability when needed.
3Reliability
If additional marks are added to the object, then security against counterfeiting is improved, but visual complexity deteriorates
Solution Approach 1:
The patent uses marks with specialized optical properties that are invisible under normal viewing conditions. This allows additional security marks to be added to the object without increasing visual complexity, as the marks only become visible under specific UV or IR illumination during authentication processes.
4Reliability
If marks are made smaller and more numerous, then security robustness is improved, but manufacturing precision requirements deteriorate
Solution Approach 1:
The patent replaces traditional mechanical positioning methods with optical detection methods. Instead of relying on precise mechanical placement of visible marks, the system uses UV or IR illuminated detection to identify and verify the covert marks. This substitution reduces the stringency of manufacturing precision requirements while maintaining security robustness.
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 security feature remains undetectable to the naked eye, providing robust and secure authentication even at high transport speeds, with redundancy ensuring data integrity and resistance to counterfeiting.
Implementation Method 1
The additional marks are only visible under UV or IR light
Implementation Method 2
The additional marks are only visible under UV or IR light
Data Source
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AI summary
The invention relates to a security feature representing predetermined machine readable data and being adapted to an inherent characteristic of an object to which the security feature is applied. The invention also relates to an object comprising the security feature.