Article inspection system for analyzing end and adjacent sides
US4914289A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1988 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Oct 26, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An article inspection system especially useful for containers having threaded ends includes a video camera, digitizer and data processor operable to analyze a video image collected through a lens system. The lens system has several alternatives, in each case including a wide aspect object lens, wider than the end of the article being inspected, with a refracting and/or reflecting light ray path operable to produce a two dimensional image including both the end of the article and the sides of the article adjacent the end. The optics produce a distorted image in which the sides of the article appear folded upwardly into the two dimensional image such that a two dimensional data array adequately represents the image of the end and the adjacent sides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.