Inspection Device Brightness Variation Inspection
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Solution Overview
Problem
Existing inspection devices require multiple devices and spaces, increasing costs due to their complexity and inability to inspect parts with variations in brightness efficiently using a simple structure.
Innovation Solution
An inspection device with an illumination unit, light path dividing unit, filters, and dual imaging units that process images from both bright and dark parts to combine and display defects on a single screen, allowing for efficient inspection of parts with varying brightness using a simple structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple inspection devices are used to inspect different inspection items, then inspection coverage is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies universality by designing a single inspection device that can perform multiple inspection functions. The device includes a rotor with multiple inspection units that can inspect different items (container body, bottom, cap, cork) using the same basic structure, eliminating the need for separate specialized devices for each inspection task.
Solution Approach 2:
The patent merges multiple inspection functions into one integrated device. The rotor combines multiple inspection units with different lighting and imaging configurations to inspect various container parts in a single device, rather than using separate devices for each inspection type.
2Adaptability or versatility
If multiple inspection devices are deployed, then inspection capability is improved, but space requirements increase
Solution Approach 1:
The patent combines multiple inspection capabilities into one compact device. By integrating multiple inspection units around a single rotor, the system achieves comprehensive inspection capability while occupying minimal space compared to having separate devices for each inspection function.
Solution Approach 2:
The universal inspection device performs multiple inspection tasks within a single compact unit, reducing the total space required for inspection equipment while maintaining comprehensive inspection capability across different container parts.
3Measurement precision
If separate inspection devices are used for bright and dark parts, then inspection accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by providing different lighting conditions for different inspection needs within the same device. Bright parts receive lighting optimized for reflective surfaces, while dark parts receive lighting optimized for absorbing surfaces, allowing accurate inspection of each type without requiring separate devices.
Solution Approach 2:
The inspection device is segmented into multiple inspection units with different lighting and imaging characteristics. Each unit is optimized for specific inspection conditions (bright or dark parts), and the rotor sequentially positions the appropriate unit for each inspection task, achieving high accuracy without overall device complexity.
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
Enables the inspection of parts with variations in brightness simultaneously, reducing the need for multiple devices and spaces, and providing high-resolution images of defects in both bright and dark areas on a single screen.
Implementation Method 1
reflections coming from a container bottom are very strong and that light glancing off the container sidewalls are low. A beam splitter with a defined splitting ratio splits reflected light into a first and second path.
Implementation Method 2
A first and second camera/lens unit received the light along the first and second, respectively. An image processor inspects the container to determine defects in the container
Data Source
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AI summary
An inspection device 1 includes an illumination unit 2 for illuminating a subject T having a bright part T1 and a dark part T2 darker than the bright part T1, a light path dividing unit 3 for dividing object light from the subject T illuminated by the illumination unit 2 into first light L1 and second light L2 that pass through different light paths, a filter 4 for reducing the amount of the first light L1 having passed through the light path dividing unit 3, a first imaging unit 5a in which the first light L1 having passed through the filter 4 forms an image, a second imaging unit 5b in which the second light L2 having passed through the light path dividing unit 3 forms an image, and an inspection unit 7 for inspecting whether a defect is present in the subject based on information of the bright part taken by the first imaging unit 5a and information of the dark part taken by the second imaging unit 5b.