Contact image sensor flat bed scanner
US5907413A · kind A · utility
30Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1997 |
| Grant date | May 25, 1999 |
| Priority date | — |
| Expiry date | Apr 10, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0442
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A flat bed scanner of the type commonly used as a stand-alone computer peripheral in combination with a contact image sensor module, the glass cover of which is removed and the module placed under the glass surface of a flat bed scanner and which extends the full width of the scanning area to provide a 1:1 scanning ratio using a rod lens to focus the image onto the image sensors, with a monorail carriage for the scanner and including low friction strips to prevent tipping of the module into the glass, paper sensors to control the beginning and end of the scanning and for accomplishing scanning in both directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.