Security Assembly With Overlapping Patterns For Authentication
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Solution Overview
Problem
Existing security elements for data carriers, such as banknotes and chip cards, require additional ink layers during manufacturing, making them more complex and expensive to produce.
Innovation Solution
A security assembly featuring at least one translucent or transparent first pattern and one second pattern, where the first pattern overlaps the second pattern to create an optically variable image when viewed from different angles, without the need for additional materials, thus simplifying and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional ink layers are added during manufacturing, then the security element can produce visible optical effects for authentication, but the manufacturing process becomes more complex and expensive
Solution Approach 1:
The patent combines multiple patterns (first pattern with translucent/transparent areas and second pattern) into a single integrated security element structure. This merging eliminates the need for separate ink layers while maintaining the visible optical effect for authentication, thereby reducing manufacturing complexity while preserving security functionality.
Solution Approach 2:
The patent transitions from a two-dimensional ink layer approach to a three-dimensional structural approach by creating overlapping patterns with varying translucency. The first pattern's translucent/transparent areas overlay the second pattern, producing optical effects through spatial arrangement and light interaction rather than through additional material layers.
2Reliability
If additional ink layers are added during manufacturing, then the security element can produce visible optical effects for authentication, but manufacturing costs increase
Solution Approach 1:
The patent merges the functions of multiple ink layers into a single patterned structure consisting of translucent/transparent first patterns and second patterns. This consolidation reduces material costs and simplifies the manufacturing process while maintaining the authentication capability through the interaction of overlapping patterns under light.
Solution Approach 2:
The patent creates optical effects through the structural arrangement and light interaction of patterns rather than through additional material deposition. The visible optical effect is produced by the geometric configuration and translucency variations of the patterns themselves, eliminating the need for expensive additional ink layers.
3Ease of manufacture
If translucent or transparent first patterns are used to overlay second patterns, then manufacturing is simplified and costs are reduced, but the structure must maintain precise overlapping arrangement
Solution Approach 1:
The patent divides the security element into distinct functional segments: the first pattern with translucent/transparent areas and the second pattern. This segmentation allows each component to be manufactured and positioned independently, making the overall structure more manageable and easier to manufacture while maintaining the necessary overlapping arrangement for optical effects.
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 solution enhances security by producing a visible optical effect that prevents tampering and forgery, while being easier and cheaper to manufacture, making it suitable for securing data carriers like passports and ID documents.
Implementation Method 1
the at least one first pattern and the at least one second pattern are configured to generate, at at least one side of the assembly, at least one third pattern 26, each of the at least one third pattern including an optically variable image
Implementation Method 2
The optically variable image varies, in an optical fashion, by changing an angle of viewing, through the first pattern(s), the second pattern(s)
Data Source
AI summary
Provided is a security assembly including at least one substrate element, at least one first pattern, and at least one second pattern. The at least one first pattern is associated with the at least one substrate element. The at least one first pattern is at least in part translucent or transparent. The at least one second pattern is associated with the at least one substrate element. Each of the at least one first pattern overlaps at least in part the at least one second pattern. Upon viewing the assembly, the at least one first pattern and the at least one second pattern are configured to generate, at at least one side of the assembly, at least one third pattern, each of the at least one third pattern including an optically variable image. Other embodiments disclosed.