Desktop UV Counterfeit Detector With Translucent Diffuser

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Solution Overview

Problem

Current counterfeit currency detectors are not fully reliable and lack a compact, portable, battery-operated design that effectively distinguishes genuine from counterfeit banknotes using ambient backlight and UV light, while ensuring user safety from UV exposure.

Innovation Solution

A desktop counterfeit currency detector with a slim footprint, utilizing battery-powered LEDs for both white and UV light, along with a translucent surface for diffusing visible light and a compartment for a counterfeit pen with special ink to test the genuineness of currency paper, ensuring safe UV exposure protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If UV light is used to detect counterfeit currency features, then detection accuracy is improved, but user safety is compromised due to UV exposure risk

Engineering Contradiction:
Improvedetection accuracyVSAvoidUV exposure risk
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

A translucent diffuser panel is introduced as an intermediary between the UV LED and the user's eyes. This panel scatters and diffuses the UV light, allowing users to view the currency features illuminated by UV light without direct exposure to concentrated UV radiation, thus resolving the contradiction between detection accuracy and user safety

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The UV LED is positioned above the currency in a vertical arrangement, with light traveling downward through the translucent panel. This dimensional arrangement ensures UV light illuminates the currency from above while the diffuser panel blocks direct UV exposure to users viewing from below, solving the safety-accuracy contradiction

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If multiple light sources (white LED and UV LED) are integrated into a single device, then detection versatility is improved, but device complexity increases

Engineering Contradiction:
Improvedetection versatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines a white LED and a UV LED into a single integrated detector device with a unified housing and shared power source. Both light sources are positioned to illuminate the currency from different angles, enabling multiple detection modes (white light examination, UV light examination) within one compact device, thus achieving versatility while managing complexity through integration

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The detector is designed as a multi-functional device that can perform various currency detection tasks using different light sources. The same device structure accommodates both white LED and UV LED operations, allowing a single device to replace multiple separate detection tools, thereby improving versatility without proportionally increasing complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If the detector is designed to be compact and portable, then ease of operation is improved, but UV light projection capability may be compromised

Engineering Contradiction:
ImproveportabilityVSAvoidUV light projection capability
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The UV LED is positioned above the currency with light traveling downward through the translucent panel, creating a vertical light path that fits within a compact footprint. This dimensional arrangement allows effective UV illumination in a small device volume, maintaining portability while preserving UV projection capability

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The translucent diffuser panel is designed as a thin film element that can be integrated into a compact housing. This thin-film approach allows the device to remain portable and compact while still effectively transmitting and diffusing UV light for currency examination, resolving the contradiction between size and functional capability

Inventive Principle:
Principle #30Flexible shells and thin films

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 a reliable, compact, and portable triple-test system for detecting counterfeit bills using white light, UV light, and ink formulation, enhancing detection accuracy and user safety with optimized UV LED placement and power management.

Implementation Method 1

provides an overhead UV lamp which is situated approximately 30 millimeters above the translucent light table

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Implementation Method 2

utilizes ultraviolet (UV) light/radiation from an LED that are more readily detectable by UV light

Methodology Applied
Scientific EffectUltraviolet radiation: Electromagnetic Induction

Implementation Method 3

The slim desktop counterfeit detector provides white light that can shine from below a currency bill that is placed on its translucent window

Methodology Applied
Scientific EffectLight diffusion: Scattering

Implementation Method 4

a compartment for a counterfeit detector pen which contains a special ink formulation that can apply a color changing test mark to a currency bill to test its reaction with the paper

Methodology Applied
Scientific EffectChemical reaction: Chemical Bonding

Data Source

PatentUS8531652B2Three way desktop UV counterfeit detector
Publication Date: 2013.09.10 DRI MARK PRODUCTS INC
  • US8531652B2 patent drawing
  • US8531652B2 patent drawing
  • US8531652B2 patent drawing

AI summary

A counterfeit detection apparatus is formed as a desktop currency detector which has a slim configuration and a small footprint on the order of about 175 mm×100 mm. The desktop counterfeit detector provides white light that can shine from below a currency bill that is placed on its translucent cover and also provides and overhead UV lamp which is situated approximately 30 mm above the translucent light table. The detector also provides a compartment for a counterfeit detector pen which contains a special ink formulation that can apply a color changing test mark to a currency bill to test its reaction with the paper to determine its genuineness. Thus, the detector provides a three-test opportunity to check the genuineness of a currency bill by white light, UV light and a specially formulated ink suitable for checking the paper stock.