Foreign object inspection device

By combining X-ray and infrared detection, the foreign object inspection device solves the problem of separating the inspection of hard and soft materials in the existing technology, and realizes compact, efficient and accurate foreign object detection.

CN115885170BActive Publication Date: 2026-06-12HAMAMATSU PHOTONICS KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HAMAMATSU PHOTONICS KK
Filing Date
2021-04-30
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing X-ray inspection devices are ineffective at detecting soft foreign objects such as plastic, insects, hair, and mold. Infrared inspection devices, on the other hand, use different technologies than X-ray inspection devices, resulting in the need to equip two separate devices for comprehensive foreign object inspection, which lacks compactness and efficiency.

⚗Method used

A foreign object inspection device was designed, which combines X-ray and infrared detection. By synchronously controlling the irradiation and detection of X-rays and infrared rays, an overlapping image is generated, enabling compact inspection of hard and soft materials, and protecting the device from radiation effects through protective components.

🎯Benefits of technology

It enables compact inspection of both hard and soft materials, improves inspection accuracy, reduces item deviation between devices, and prevents radiation damage to infrared detection components, thus enabling high-precision foreign object detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

An foreign matter inspection device (1) includes: an X-ray irradiation section (6) that irradiates an inspection object (S) carried by a carrying section (5) with X-rays (L1); an X-ray detection section (7) that detects the X-rays (L1) that have passed through the inspection object (S) and outputs X-ray image data based on the detection result; an infrared ray irradiation section (8) that irradiates the inspection object (S) carried by the carrying section (5) with infrared rays (L2); and an infrared ray detection section (9) that detects the infrared rays (L2) from the inspection object (S) and outputs infrared ray image data based on the detection result. The infrared ray irradiation section (8) and the infrared ray detection section (9) are covered by a protection section (21) having a member that shields the X-rays (L1) and allows the infrared rays (L2) to pass through.
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