Full contact image sensor device with light blocking means
US5149955A · kind A · utility
5Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1990 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Jul 23, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/0313
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A full contact image sensor device comprising sensor elements adapted to macroscopically touch a document to receive reflected light from the document and to generate electric signals in response thereto, wherein a receiving surface of each sensor element has an uneven contour and the device wherein each sensor element corresponding to a pixel comprises a plurality of sensor element blocks is proposed. The devices are easily manufactured and have excellent MTF and sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.