Low cost bar code reader
US6578767B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2000 |
| Grant date | Jun 17, 2003 |
| Priority date | — |
| Expiry date | Dec 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/0012
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An optical scanning module and a scanner incorporating the scanning module for reading bar codes and other optical indicia that consists of a printed circuit board, an elongated elliptical aperture in the scanning module that is spaced from the circuit board, a light source mounted on the printed circuit board for projecting at least one beam of light through the aperture and onto a dataform to be read, and a detector mounted on the printed circuit board for sensing light reflected from the dataform and through the aperture. Light baffle is preferably used to isolate light source from the detector in the optical scanning module of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.