Patent
Process and system for the optical inspection of transparent containers
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TLDR
In this paper, a system for the optical inspection of at least partially transparent containers in an inspection area with an illuminating device and a camera for producing images to be evaluated, the degree of transparency of each container is determined, and a light field is configured for this specific container.Abstract:
In a process for the optical inspection of at least partially transparent containers in an inspection area with an illuminating device and a camera for producing images to be evaluated, the degree of transparency of each container is determined, and a light field is configured for this specific container. The light intensity of the light field and/or the imaging sensitivity is adapted to the determined degree of transparency, and the traveling light field is shifted through the inspection area in synchrony with the container. The system for implementing the process has an LED light screen with a plurality of LEDs, which can be activated individually or in groups, and a device upstream of the inspection area for measuring the individual degree of transparency of each container. These components are connected to a control unit, which produces the traveling light field for each container and shifts it in synchrony with the container. The control unit also adapts the light intensity of the traveling light field to the degree of transparency found for the container in question.read more
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References
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Patent
Container inspection machine
TL;DR: In this article, a single camera is used to perform two inspections of a ferroelectric crystal, one of which is rotated 90° by the same structure so that only light rotated as a result of stress in the bottle passes through the polarizer and images on the camera as a defect.
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Coating density analyser and method using non-synchronous TDI camera
H Galen Parker,Richard D Young +1 more
TL;DR: The TDI CCD camera comprises an array of N rows of M light sensitive CCD elements each imaged on a fixed discrete pixel-related image area of the illuminated imaging region as discussed by the authors.
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Glass container sidewall defect detection system with a diffused and controlled light source
TL;DR: In this article, an indexing starwheel is used to move a plurality of containers in series through a series of positions or stations where the containers are physically and optically examined.
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Method and device for inspecting sidewall of bottle
Kazushi C,O Kirin Beer K.K. Ishikawa,Shinsaku C,O Kirin Beer K.K. Yamamoto,Hisao C,O Kirin Beer K.K. Katogi +5 more
TL;DR: In this article, a method and a device for inspecting the sidewall of a bottle is presented, in which an elongate illumination portion is moved to irradiate illumination light to the side of the bottle to be inspected, and an elongated observation portion moved synchronously with the elongated illumination portion to observe the illumination light transmitted through the glass, and based on an image of transmitted light, the presence of defects is judged.