Apparatus for reading information code
US7017817B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2003 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Sep 6, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10712
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information code reading apparatus comprises a case, an illuminating light source, and a light receiver. The case has an end portion at which a reading opening is formed. The illuminating light source is disposed within the case and configured to radiate illumination light through the reading opening toward an information code recorded on an object to be read. The light receiver is disposed within the case and configured to receive light reflected from the object through the reading opening. The reflected light returns along a reading light axis residing in a field of view of the light receiver. The reading light axis is oblique to a perpendicular axis to the reading opening, whereby the entire reading opening is illuminated by the light source. The illuminating light source is composed of an area light source disposed outside the field of view in a substantially parallel attitude along the field of view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.