Security Element with 3D Waving Flag Motif
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Solution Overview
Problem
Conventional luminescent security elements for data carriers lack high fake security and attractive visual appearance, as they often suffer from color changes due to aging and environmental factors, making it difficult to display recognizable motifs.
Innovation Solution
A safety element with a combination security feature that includes a colored image motif of a flag, which appears 2D in normal lighting but transforms into a 3D, moving flag under hybrid lighting with visible light and UV light. This is achieved through a body color layer and a luminescent color layer that produces brightness modulation when excited with UV light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional luminescent security elements are used, then security verification is possible, but color integrity deteriorates due to aging and environmental factors
Solution Approach 1:
The security element is divided into separate functional layers: a body color layer for structural integrity and a luminescent color layer for security verification. This segmentation allows each layer to perform its specific function independently, preventing color degradation in the luminescent layer while maintaining security verification capabilities.
Solution Approach 2:
The invention uses composite material structures combining different luminescent pigments (red, green, blue) in specific layers. This composite approach creates multiple luminescent color layers that work together to produce stable, long-lasting luminescence while resisting degradation from aging and environmental factors.
2Reliability
If conventional luminescent features are used, then security protection is provided, but visual appearance and recognizability deteriorate
Solution Approach 1:
The invention transitions from conventional 2D luminescent features to a 3D effect by adding brightness modulation in the luminescent color layer. This creates depth perception and dynamic visual appearance while maintaining security protection, making motifs easily recognizable to viewers.
Solution Approach 2:
The invention utilizes multiple luminescent colors (red, green, blue) that can change or modulate their appearance under different lighting conditions. This creates dynamic visual effects and enhances recognizability while maintaining security protection against forgery.
3Ease of manufacture
If single-color luminescent layers are used, then manufacturing is simple, but visual appeal and security complexity are insufficient
Solution Approach 1:
The invention merges multiple luminescent color layers (red, green, blue) into a single integrated structure that can be manufactured together. This combination creates rich visual appeal and enhanced security features while maintaining reasonable manufacturing simplicity through consolidated production processes.
Solution Approach 2:
Different regions of the luminescent color layer have different properties - some areas contain specific luminescent pigments while others have different compositions. This local variation creates diverse visual effects and enhances security complexity while allowing for efficient manufacturing through targeted application of different materials in specific zones.
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 provides high fake security and an attractive visual appearance by creating a dynamic 3D effect from a 2D image, while maintaining color integrity and resistance to aging and environmental changes.
Implementation Method 1
at least one luminescent color layer arranged above and/or below the body color layer, which, when excited with UV light, generates a brightness modulation superimposed on the 2D appearance
Implementation Method 2
The luminescent color layer emits white luminescent light upon UV excitation
Data Source
Figure 1~2d
Figure 3a~4f
AI summary
The invention relates to a security element for securing security documents, valuables, and other data carriers, comprising a combination security feature (16) containing a colored image motif in the form of a flag, wherein: - the combination security feature (16) displays the flag motif (20) with a 2D appearance under normal illumination with visible light, and - under hybrid illumination with visible and UV light, the flag motif displays the flag motif with a 3D appearance as a moving, in particular waving, flag (25); - the combination security feature (16) comprises a body color layer (32, 34) with at least two visually visible body colors for generating the 2D appearance of the flag motif and comprises at least one luminescent color layer (36) arranged above and/or below the body color layer (32, 34), which, when excited with UV light, generates a brightness modulation superimposed on the 2D appearance.which gives the flag motif a 3D appearance as a moving, especially waving, flag.