Banknote validator
US6392863B1 · kind B1 · utility
2Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Oct 12, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S271/902
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The optical sensor (305,306) comprises a trapezoidal light guide (34, 104), a broadband light source (350) fo illuminating a banknote via the light guide (34, 104) and sensors (351, 352, 353) for detecting light reflected from the banknote via the light guide (34, 104). Filters (354, 355, 356) are arranged in front of the sensors (351, 352, 353). The light guide (34,104) is inclined relative to the banknote path (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.