Visible Hinge Laser Marking Across PET and Polycarbonate
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Solution Overview
Problem
Existing methods using infrared laser radiation fail to create visible markings on PET connection elements when securing data carriers like datapages in articles such as passports, leading to security vulnerabilities.
Innovation Solution
Utilize electromagnetic radiation in the visible and ultraviolet regions to generate marking elements on both PET connection elements and polycarbonate data carriers, ensuring compatibility and visibility of security features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If infrared laser radiation is used to mark polycarbonate data carriers, then the data carrier is effectively marked, but the PET connection element remains unmarked and invisible
Solution Approach 1:
The patent changes the wavelength parameter of the laser radiation from infrared to visible or ultraviolet regions. This parameter change enables the electromagnetic radiation to interact with both polycarbonate and PET materials simultaneously, producing visible markings on both the data carrier and connection element during a single personalization step.
Solution Approach 2:
The patent employs electromagnetic radiation in the visible or ultraviolet region that can universally mark both polycarbonate data carriers and PET connection elements. This single radiation type performs multiple functions: marking the data carrier effectively and simultaneously creating visible markings on the connection element, eliminating the need for separate marking processes.
2Productivity
If a single laser marking process is applied to both data carrier and connection element, then both components can be marked simultaneously, but this requires electromagnetic radiation that interacts with both materials
Solution Approach 1:
By changing the wavelength parameter to visible or ultraviolet regions, the patent ensures reliable and visible markings on both materials simultaneously, while maintaining high productivity through a single marking process.
3Reliability
If infrared radiation is used, then polycarbonate data carriers can be marked, but PET connection elements are not visibly marked creating security vulnerabilities
Solution Approach 1:
The patent changes the radiation wavelength from infrared to visible or ultraviolet regions, which dramatically improves the visibility (illumination intensity) of markings on PET connection elements while simultaneously maintaining effective marking on polycarbonate data carriers, thereby enhancing security against counterfeiting.
Solution Approach 2:
The patent utilizes electromagnetic radiation in the visible region that produces visible color changes or markings on both materials. The marking elements become visually detectable through color or appearance changes, enabling easy verification of authenticity and improving security.
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
Enhances security by making it evident when counterfeit articles are attempted, as the marking elements on both components remain visible and complementary, providing a tamper-evident security feature.
Implementation Method 1
The connection element is configured to interact i.e. capable of interacting with impinging electromagnetic radiation such, that at least one marking element is generated in the connection element upon the impingement of the electromagnetic radiation
Implementation Method 2
The data carrier is configured to interact i.e. capable of interacting with impinging electromagnetic radiation such, that at least one further marking element is generated in the data carrier upon the impingement of the electromagnetic radiation
Implementation Method 3
The electromagnetic radiation is preferably provided by a source of electromagnetic radiation such as a laser
Data Source
AI summary
A secure device for securing an article that includes at least one connection element, at least one data carrier, and at least one security element. The connection element is configured to be connected to the article, and the data carrier is in connection with the connection element and is configured to be connected to the article via the connection element. The connection element is configured to interact with impinging electromagnetic radiation such, that at least one marking element is generated in the connection element upon the impingement of the electromagnetic radiation. The data carrier is configured to interact with impinging electromagnetic radiation such, that at least one further marking element is generated in the data carrier upon the impingement of the electromagnetic radiation. The security element comprises or consists of the marking element of the connection element and of the further marking element of the data carrier.