Illumination apparatus for an imaging-based bar code system
US8448867B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2008 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | May 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10831
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An imaging-based barcode system including a scanning arrangement and an illumination apparatus is shown. The scanning arrangement includes a sensor assembly for capturing an image from a target object, the sensor assembly having a field-of-view focused by an optical arrangement onto a sensor array located within the sensor assembly. The illumination system includes a first illumination assembly and a second illumination assembly, each of the first and second assemblies including an illumination source directing illumination through a light pipe and a focusing lens to generate an illumination pattern directed towards a target object, wherein the light pipe includes an input surface and an output surface, the light pipe is configured to change the light intensity distribution at its output surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.