Optical information reading device
US9633245B2 · kind B2 · utility
2Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Jun 26, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1011
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In an optical information reading device configured to read a code symbol on a subject to be read by acquiring an image of the subject to be read with an image pickup portion and analyzing the image, a laser light source and an irradiation optical system is provided as an irradiator configured to irradiate the subject to be read to form a guide mark indicating an image pickup resolution of the image pickup portion. It is preferable that the irradiator is configured to emit a plurality of radially diffused light beams so as to form the guide mark at equal intervals on the subject to be read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.