Arrangement for and method of uniformly illuminating direct part markings to be imaged and electro-optically read
US8028913B2 · kind B2 · utility
19Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2007 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Sep 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10722
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Performance of an imaging reader for electro-optically reading direct part markings on workpieces is enhanced by uniformly illuminating the markings. An illuminator is operative for emitting illumination light of greater and lesser intensity toward the indicia. A diffuser is operative for diffusing the illumination light en route to the indicia. The diffuser includes a plurality of diffusing elements adjacent the illuminator for diffusing the illumination light of greater intensity more than the illumination light of lesser intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.