Illuminator for machine vision
US6621569B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 2001 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | May 24, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/9036
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is directed to inspection of sealing surfaces of containers for defects which may prevent proper sealing of the container. The present invention provides an inspection apparatus, system, and method for dark-field machine vision inspection of containers, such as glass containers or other containers having a sealing surface. The illumination system provides a dual directional helical illumination technique, which enhances the ability to distinguish any defects in the sealing surface area. The illumination system may also provide the ability to adjust the diameter of a circular illumination pattern, so as to allow adjustability and optimization of the illumination characteristics for differing container configurations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.