Two position zoom lens assembly for an imaging-based bar code reader
US7762466B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2008 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Dec 18, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10702
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An imaging-based bar code reader including: an imaging system for imaging a target bar code within a field of view of the imaging system and projecting light from the field of view onto a sensor array, the imaging system generating image frames of the field of view of the imaging system; the imaging systems including an imaging lens assembly having a plurality of lens and a selection drive mechanism to select between a first optical zoom position defining a first focal length and a first field of view for imaging a target bar code at a close range and a second optical zoom position defining a second focal length and a second field of view for imaging a target bar code at a far range, the second focal length being greater than the first focal length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.