Optical Inspection Device for Security Documents
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Solution Overview
Problem
Current testing procedures for security documents are inflexible and not integrated into the production line, requiring separate devices for each testing process, which is costly and space-consuming.
Innovation Solution
A device with multiple optical detection devices arranged in a common housing, allowing for simultaneous or sequential inspection of security documents in different directions, reducing system complexity, space, and automation effort, enabling flexible and cost-effective inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate testing devices are used for each testing process, then the inspection reliability is improved, but the device complexity and space requirements increase
Solution Approach 1:
The patent combines multiple optical detection devices with different detection directions into a single integrated inspection system. The device includes a first optical detection device for detecting optically perceptible features and a second optical detection device for detecting security features, both integrated within one housing unit. This merging approach maintains comprehensive inspection reliability while reducing system complexity and space requirements compared to using separate testing devices for each inspection process.
Solution Approach 2:
The integrated inspection device performs multiple inspection functions simultaneously using different optical detection devices. The first optical detection device detects optically perceptible features while the second optical detection device detects security features, allowing the single device to replace multiple specialized testing devices. This multi-functionality approach maintains inspection reliability across different feature types while reducing overall system complexity.
2Measurement precision
If separate testing devices are used for each testing process, then the inspection precision is maintained, but the space requirements and manufacturing costs increase
Solution Approach 1:
The patent integrates multiple optical detection devices with different detection capabilities into a single housing unit, reducing manufacturing costs and space requirements while maintaining inspection precision. The device includes a first optical detection device for optically perceptible features and a second optical detection device for security features, both integrated within one system.
Solution Approach 2:
The patent employs optical detection devices that inspect security documents from different directions or angles. The first optical detection device detects features in one direction while the second optical detection device detects features from a different direction, enabling comprehensive inspection without requiring multiple separate devices. This dimensional approach maintains inspection precision while reducing system complexity and manufacturing costs.
3Area of stationary object
If multiple optical detection devices are integrated in a common housing, then the space efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple optical detection devices into a single integrated housing unit, improving space efficiency by consolidating what would otherwise be separate testing devices. The first optical detection device and second optical detection device are both housed in the same unit, reducing the overall space required for inspection equipment.
Solution Approach 2:
The integrated device is designed with modular segmentation, where the first optical detection device and second optical detection device are distinct functional modules within the common housing. Each module can be independently configured for its specific detection function, which manages the integration complexity by providing clear functional separation within the unified structure.
4Adaptability or versatility
If separate testing devices are used for each processing step, then the inspection flexibility is maintained, but the automation effort and time consumption increase
Solution Approach 1:
The patent integrates multiple optical detection devices that can simultaneously inspect different features of the security document, reducing inspection time. The first optical detection device and second optical detection device operate in parallel within the same housing, enabling comprehensive inspection without requiring sequential processing through multiple separate devices.
Solution Approach 2:
The integrated inspection device provides versatile inspection capabilities by incorporating different types of optical detection devices that can detect various security features. The device can detect optically perceptible features, security features, and other characteristics within a single inspection cycle, maintaining flexibility while reducing the time required compared to using separate specialized devices for each feature type.
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 enables a flexible, space-saving, and cost-effective optical inspection of security documents, allowing for simultaneous inspection of multiple areas in a single module, reducing the need for additional test modules and saving time and resources.
Implementation Method 1
a first optical detection device, in particular a camera, for detecting optically perceptible information, in particular one or more optically perceptible features
Implementation Method 2
at least one second optical detection device, in particular a camera, for detecting optically perceptible information, which is configured to optically check the security document in a second direction deviating from the first direction
Data Source
Figure 1
AI summary
The invention relates to a device (1) for the optical inspection of a security document (2), in particular a passport book, comprising a first optical detection device (10) for detecting optically perceptible information, in particular one or more optically perceptible features, which is configured to optically inspect a security document (2) in a first direction (r1), and at least a second optical detection device (20) for detecting optically perceptible information, which is configured to optically inspect the security document (2) in a second direction (r2) differing from the first direction (r1) or in the first direction (r1) from a different side than the first optical detection device (10). The invention further relates to a method and a system for the optical inspection of a security document using the optical inspection device (1) according to the invention.