Apparatus for viewing originals
US6867886B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Aug 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for viewing originals in a flatbed scanner includes a fixed copy holder and a movable scanning unit with a light source for illuminating the original to be scanned, an optoelectronic transducer, and a scanning lens for projecting a scanned line of the original onto the optoelectronic transducer. Fitted below the copy holder is a light source, and fastened on the scanning unit is a dispersion foil drawn under the copy holder by the scanning unit when the scanning unit is brought into a parking position and drawn away by the scanning unit when the scanning unit is moved over the copy holder during scanning. The dispersion foil is stretched tight by a suitable stretching apparatus when the scanning unit is in the parking position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.