Imaging optical code reader having selectable depths of field
US7025271B2 · kind B2 · utility
48Cited by
24References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Apr 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10811
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Several optical systems for imaging engines of imaging optical code readers are disclosed. Each optical system includes the abilities to change the depth of field of the imaging field and to adjust a focus quality of the imaging field. The disclosed structures for changing the depth of field of the disclosed optical systems allow for the automatic or manual selection of one of a plurality of depths of field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.