Device for mounting an original onto an image reading drum
US5422737A · kind A · utility
9Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1992 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Jun 4, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/0852
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a device for efficiently mounting an original onto an image reading drum in an image scanning system. The mounting device includes a lower holder section and an upper holder section, each made of a flexible but hard plastic sheet. The original is held in between the lower holder section and the upper holder section and is attached onto the image reading drum, which has a predetermined thickness greater than a distance causing Newton's rings. Accordingly, image signals obtained by scanning the original effectively represent an original image without Newton's rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.