Data reader with light source arrangement for improved illumination
US9135484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2011 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10831
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Light sources are contained in a data reader housing that also contains an imager. In one embodiment, one light source includes a number of LEDs placed in a number of hollow reflectors located toward the rear of a data scanner, where the hollow reflectors have substantially flat reflective surfaces to project light through a window and into a read volume. Other embodiments include additional light sources located proximate sidewalls of the data scanner and also include a number of LEDs placed in hollow reflectors to project light through the window and into the read volume. In other embodiments, additional LEDs are included outside the hollow reflectors to project light through the window and into a different portion of the read volume than the LEDs located in the hollow reflectors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.