Process and apparatus for the optical inspection of a transparent region of a container, in particular the mouth region
US5661294A · kind A · utility
23Cited by
10References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1996 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Aug 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/9054
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To photograph the mouth region of a bottle, a light-emitting surface is arranged below the mouth region to be photographed. The light-emitting surface is illuminated by means of an illuminating device and the image of the illuminated mouth region is directed to a camera by a mirror arrangement (5,6,11). The light-emitting surface makes it possible to image the mouth region in transmitted light, facilitating detection of defects and soiling in the mouth region from the interpretation of the image recorded by the camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.