Optical scanner equipped with plug-in calibration film
US7031028B2 · kind B2 · utility
7Cited by
3References
11Claims
0Family size
Inventors
Key dates
| Filing date | Oct 15, 2001 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Jan 15, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/044
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical scanner equipped with plug-in calibration film, which the optical scanner provides light incident upon a transmission-typed document and catches the image signals of the transmission-typed document by an optical chassis. The optical scanner equipped with plug-in calibration film includes a scanning zone and at least one attachment. The scanning zone is capable of providing for placing the transmission-typed document. The attachment is capable of providing a calibration film for enabling the optical chassis to retrieve the image signals so as to improve the image brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.