Security Element Window Extension Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current security documents lack easy-to-verify yet difficult-to-replicate features, particularly in window areas, which are challenging to authenticate due to complex optical properties and the need for distinct transparency and opacity differences.
Innovation Solution
A security element with a window area made of transparent material that extends from top to bottom, surrounded by non-transparent areas, where the window area merges into a translucent bracket covered on both sides, enhancing light transmission contrast for easy verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a window area with transparent material is used in security documents, then light transmission and visual verification are improved, but ease of imitation by counterfeiters increases
Solution Approach 1:
The window area is segmented into a visible window portion and a hidden window extension portion. The window extension protrudes into the non-transparent area and is completely covered on both sides, creating distinct segments that serve different functions: the visible window allows light transmission for aesthetic purposes, while the hidden extension provides verification capability through differential light transmission when illuminated from different directions.
Solution Approach 2:
The window extension adds a third dimensional element by protruding into the non-transparent area. This creates a volumetric structure that cannot be detected from top or bottom views alone. The verification requires examining the document from multiple angles or using transmitted light illumination, adding a dimensional aspect to the verification process that counterfeiters must replicate in three dimensions.
2Measurement precision
If complex verification methods are used to detect counterfeit security documents, then measurement precision is improved, but device complexity and ease of operation worsen
Solution Approach 1:
The window extension structure enables self-verification through its inherent optical properties. When light is transmitted through the document, the window extension area appears brighter than surrounding non-transparent areas, providing automatic visual indication of authenticity without requiring complex electronic sensors, databases, or powered verification devices. The structure verifies itself through differential light transmission.
Solution Approach 2:
The patent replaces complex electronic or mechanical verification systems with a simple optical verification method. Instead of using sensors, processors, or powered devices to detect counterfeits, the verification relies on basic light transmission principles and human visual detection of brightness differences, significantly simplifying the verification system while maintaining accuracy.
3Reliability
If opaque material is used to cover the window extension, then security against counterfeiting is improved, but light transmission and visibility are reduced
Solution Approach 1:
The window extension is completely covered with opaque material on both the front and back sides, creating a localized opaque region within the otherwise transparent window area. This local application of opaque material provides security by hiding the extension from direct top and bottom views, while the verification process uses transmitted light illumination to reveal the extension through differential brightness, thus resolving the contradiction between coverage and visibility.
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 method allows for simple and effective verification by highlighting the window area through increased light transmission, making it easier to distinguish from non-transparent areas, thus enhancing authentication without being easily replicable.
Implementation Method 1
shining verification light into the window area... capturing at least one image of the top or bottom surface... examining the image for brightness differences
Data Source
Figure 1~3
Figure 4~5
Figure 6
AI summary
The invention relates to a verification method for a security element (1) with a window extension, which comprises a security element body (20) with a window area (25) in which the material of the security element body (20) is transparent between a top (21) and a bottom (22), wherein the window area (25) is surrounded and bounded by a non-transparent area of the security element body (20) and the window area (25) transitions into the transparent window extension, which extends into the non-transparent area, wherein the window extension (60) is completely covered non-transparently on both the top (21) and the bottom (22) of the security element body (20), wherein verification light is shone into the window area of the security element (1) for verification, capturing at least one image of the top or the bottom, which includes at least one area next to the window area (25).and the image is evaluated for brightness differences in the area next to the window area, whereby the security element (1) is classified as genuine if an area of increased brightness is found in the area next to the window area (25) adjacent to the window area (25), and the verification decision is output based on the classification.