Imaging reader with improved illumination
US9305198B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2013 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Jul 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/1096
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data reading system, such as for reading optical codes being passed through a read zone, including one or more imagers, and at least one illumination module, all disposed in a reader housing, the illumination module in one configuration having a reflector housing comprised of a cone-shaped structure of generally rectangular cross-section, with a top inner surface and a bottom inner surface, wherein area of the cross-section of the cone-shaped structure increasing from a rear end to a front end, and an illumination source (such as a plurality of light emitting diodes) disposed at the rear end of the reflector housing and operative to generate illumination out through the reflector housing along an outgoing illumination path, the top inner surface of the reflector housing being a surface of high reflectivity relative to the bottom inner surface of the reflector housing which has a surface of relatively low reflectivity. Also disclosed are imager configurations for providing multiple fields of views of multiple imagers co-mounted on a common PCB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.