Multi-Plating Optical Anti-Counterfeiting Element Alignment
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Solution Overview
Problem
Existing optical anti-counterfeiting elements struggle with precise alignment of high-brightness metal reflecting layers and multi-layer interference optically variable features, limiting their application in high-end anti-counterfeiting products.
Innovation Solution
The development of an optical anti-counterfeiting element with strict zero-error positioning of areas featuring a metal plating layer and a multi-layer interference optically variable plating layer, combined with a hollow feature for enhanced anti-counterfeiting performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a local printing hollow process is used to integrate multi-layer interference optically variable plating layer and high-brightness metal reflecting layer, then the optical anti-counterfeiting effect is enhanced, but the mutual alignment precision is limited to 100 um or above
Solution Approach 1:
The patent applies preliminary action by pre-forming through-holes in the substrate before the plating process. These through-holes serve as precise alignment markers and structural guides that enable subsequent plating layers to be accurately positioned relative to each other, achieving zero-error alignment that overcomes the 100 um limitation of conventional printing-based alignment methods
Solution Approach 2:
The patent introduces through-holes as an intermediary structural element that mediates the alignment between different plating layers. These holes act as reference features that both the multi-layer interference optically variable plating layer and the high-brightness metal reflecting layer can align to, ensuring precise mutual positioning without relying on printing precision
2Reliability
If multiple plating layers with different optical features are integrated in the same optical anti-counterfeiting element, then the comprehensive integrated anti-counterfeiting performance is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the optical anti-counterfeiting element into distinct functional regions: areas with multi-layer interference optically variable plating layer, areas with high-brightness metal reflecting layer, and hollowed-out areas. Each region provides specific optical anti-counterfeiting features, and their combination creates a comprehensive anti-counterfeiting system with multiple verification mechanisms
Solution Approach 2:
The patent merges multiple plating layer technologies (multi-layer interference optically variable plating and high-brightness metal reflecting plating) and hollow structures into a single integrated optical anti-counterfeiting element. This combination allows the element to exhibit diverse optical features including color changes, holographic effects, and hollow patterns, all within one component
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
This solution achieves a significant enhancement in anti-counterfeiting performance by ensuring precise alignment and integration of optical features, thereby improving the overall security and authenticity verification of high-value printed materials.
Implementation Method 1
The optical anti-counterfeiting technology generally adopts a metal reflecting layer, such as aluminum. The first area has an optical feature of a combination of the first microstructure and the first plating layer
Implementation Method 2
a multi-layer interference optically variable technology is increasingly paid attention by people due to the fact that the multi-layer interference optically variable technology has a strong optical color-changing effect under different observation viewing angles
Implementation Method 3
optical effects such as diffraction and non-diffraction formed by a microstructure are widely applied due to high brightness and obvious dynamic effect
Data Source
AI summary
An optical anti-counterfeit element includes an undulating structure layer (2); the undulating structure layer includes a first area (A) with a first microstructure and a second area (B) with a second microstructure; a structural parameter of the second microstructure is greater than a structural parameter of the first microstructure; the undulating structure layer also includes a third area (C) with a third microstructure; a structural parameter of the third microstructure is greater than the structural parameter of the second microstructure; a first plating layer (3) is arranged on the first area; a second plating layer (5) is arranged on the second area; the third area is not provided with a first plating layer or a second plating layer; and viewed from one side of the optical anti-counterfeit element, the first area has an optical feature of a combination of the first microstructure and the first plating layer, the second area has an optical feature of a combination of the second microstructure and the second plating layer.