To drive the optical system independently by CPU in flatbed scanners
US5633745A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1995 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Sep 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/193
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical system for a flatbed scanner, including a first optical unit to emit light onto a document and to reflect the image of the document, a second optical unit to receive reflected light from the first optical unit and to reflect it, a third optical unit to receive reflected light from the second optical unit and to send it out, and a fourth optical unit to receive light from the third optical unit and to pick up the image from it, wherein the first optical unit, the second optical unit and the third optical unit can be independently moved relative to the fourth optical unit subject to a predetermined setting made in the optical scanner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.