Information reading/processing system for recorded information using fluophor
US4757188A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1985 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Dec 5, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2019/06225
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A first member and a second member are coupled so as to form a flat card path therebetween. The card path is open at one end of each of the first and second members. A plurality of guide holes are formed in the first member so as to open to the card path. The guide holes are substantially perpendicular to the card path. A plurality of light-emitting elements are respectively mounted in the guide holes such that a light-emitting direction of each light-emitting element crosses the card path. A plurality of photodetector chambers are formed in the second member such that each photodetector has an optical axis aligned with that of each light-emitting element. A plurality of light-receiving elements are housed in the photodetector chambers so as to receive only light beams having a predetermined wavelength through respective filters. An information card having pattern data formed by a fluophor thereon is inserted along the card path, thereby allowing reading of the pattern data by the light-receiving elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.