Laser-Marked Lens Substrate for Angle-Shift Document Authentication
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Solution Overview
Problem
Existing security features in documents are easily replicable, lacking effective mechanisms for easy verification and authentication.
Innovation Solution
A substrate with a transparent, laser-markable outer layer featuring a combination of engraved contours with curved segments and aligned rows of raised lenses, which create a dynamic visual effect that varies with viewing angle, making it difficult to counterfeit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional security features are used in documents, then they can be easily fabricated, but they lack effective verification mechanisms
Solution Approach 1:
The patent applies the dynamics principle by creating a visual effect that changes with viewing angle. The raised lenses are positioned to focus light on different contours depending on the angle from which the document is viewed, creating a dynamic visual experience that is easy to verify but difficult to replicate
Solution Approach 2:
The patent introduces a new dimension to security verification by incorporating viewing angle as a variable. The focal points of the raised lenses are strategically positioned to align with different contours at different viewing angles, adding angular dimensionality to the security feature that is simple to verify but complex to counterfeit
2Reliability
If complex security features are implemented, then forgery prevention improves, but verification becomes difficult
Solution Approach 1:
The patent uses partial action by implementing security features only in specific regions where raised lenses are positioned over contours. This localized approach provides sufficient security verification without requiring complex features throughout the entire document, making verification simple while maintaining forgery prevention
3Ease of operation
If static security features are used, then they are simple to verify, but they are easily replicated
Solution Approach 1:
The patent transforms static security features into dynamic ones by making the visual appearance change with viewing angle. The raised lenses create different focal point alignments at different angles, producing a dynamic visual effect that remains simple to verify but is much harder to replicate than static features
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 substrate provides a secure and easily verifiable visual effect that changes with viewing angle, enhancing document authentication and preventing forgery.
Implementation Method 1
a focal point of a raised lens in a row of raised lenses is aligned with a first contour of the plurality of contours at a first viewing angle and aligned with a second contour of the plurality of contours at a second viewing angle
Implementation Method 2
a plurality of raised lenses arranged in rows on the at least one surface of the substrate
Data Source
AI summary
A substrate for security verification, including a transparent, laser-markable outer layer on at least one surface, the at least one surface including an image formed by a plurality of contours, each contour of the plurality of contours having at least one curved segment; and a plurality of raised lenses arranged in rows on the at least one surface of the substrate, wherein each row of the rows of raised lenses is aligned with a contour of the plurality of contours, and a focal point of a raised lens in a row of raised lenses is aligned with a first contour of the plurality of contours at a first viewing angle and aligned with a second contour of the plurality of contours at a second viewing angle.