Optical reader with combined housing and light pipe
US6648225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | May 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10722
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical reader includes a housing which may environmentally protect the optical path between a light source and a sensor array to reduce dust and debris interfering with transmission of light. The housing may further provide for alignment of the light path by positioning a focusing axis in alignment with the optical sensor array. The housing further acts as a light pipe to reflect transmitted light from a light source toward a focusing axis where the light may be reflected off of a document containing coded information back through the chamber defined by the housing to an optical sensor array. Point of sale devices incorporating an optical reader are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.