Planchette Luminescence for Transmitted Light Authentication
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Solution Overview
Problem
Existing security technologies face challenges in effectively detecting unauthorized copying or counterfeiting in articles of manufacture, particularly when planchettes embedded within documents are concealed by the substrate, making them difficult to inspect using reflected or UV light.
Innovation Solution
Designing planchettes to be optimized for transmitted light inspection, which involves creating planchettes that can be easily visible in transmitted light regardless of their depth within the document substrate, and incorporating them into a security system that uses specific light frequencies to luminesce and patterns to authenticate the article of manufacture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If planchettes are embedded inside the document substrate, then security protection is improved, but visibility for inspection deteriorates
Solution Approach 1:
The patent introduces transmitted light as an intermediary inspection method between the embedded planchettes and the inspector. By shining light through the document substrate from the reverse side, the planchettes become visible without requiring them to be on the surface, thus resolving the contradiction between embedding for security and visibility for inspection.
Solution Approach 2:
The patent transitions from surface-level inspection (reflected light) to depth-penetrating inspection (transmitted light). This dimensional change in light propagation allows inspection of embedded planchettes within the substrate thickness, solving the visibility problem while maintaining security embedding.
2Ease of operation
If planchettes are made visible in reflected light, then ease of inspection is improved, but security effectiveness deteriorates
Solution Approach 1:
The patent segments the inspection process into two independent modes: reflected light inspection for surface features and transmitted light inspection for embedded planchettes. This allows the system to maintain security effectiveness through embedding while providing ease of inspection through multiple accessible methods.
Solution Approach 2:
The patent changes the light propagation parameter from reflected light (surface-level) to transmitted light (depth-penetrating). This parameter change enables planchettes to remain embedded for security while becoming inspectable through the transmitted light method, resolving the contradiction between visibility and security effectiveness.
3Reliability
If planchettes are embedded deep within the substrate, then counterfeiting resistance is improved, but detectability with conventional methods deteriorates
Solution Approach 1:
Transmitted light acts as an intermediary that can penetrate the substrate and illuminate embedded planchettes at any depth. This allows deep embedding for counterfeiting resistance while maintaining detectability through the transmitted light inspection method, overcoming the limitation of conventional reflected light inspection.
Solution Approach 2:
The patent introduces a new inspection dimension by using transmitted light that travels through the substrate thickness. This dimensional change in light propagation allows detection of planchettes regardless of their embedding depth, resolving the contradiction between deep embedding for security and detectability with conventional methods.
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 approach enhances the visibility and detectability of planchettes in transmitted light, overcoming the limitations of reflected and UV light inspections, and provides a robust security feature against counterfeiting by ensuring the authenticity of articles of manufacture.
Implementation Method 1
a first set of planchettes configured to luminesce when a first frequency of light is cast on the first planchettes; and a second set of planchettes configured to luminesce when a second frequency of light is cast on the second planchettes
Data Source
AI summary
A security system for an article of manufacture includes: one or more first planchettes included in the article of manufacture and configured to luminesce when a first frequency of light is directed to the one or more first planchettes; and one or more second planchettes included in the article of manufacture and configured to luminesce when a second frequency of light is directed to the one or more second planchettes. The first and second planchettes have one or more first planchette substrates each including a first planchette surface having a first UV-reactive microprinting thereon; and one or more second planchette substrates each including a second planchette surface having a second UV-reactive microprinting thereon. The first UV-reactive microprinting is different from the second UV-reactive microprinting.