Direct-contact-type image sensor
US4887166A · kind A · utility
8Cited by
18References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1988 |
| Grant date | Dec 12, 1989 |
| Priority date | — |
| Expiry date | May 20, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/191
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a contact-type image sensor comprising an array of photosensor elements for receiving light reflected from a document, and a protective layer disposed above the array of photosensor elements for protecting the array of photosensor elements when contact is made with the document, means are provided for discharging electric charges accumulated on the protective layer. This may comprise the protective layer with a relatively low resistivity or a separate conductive layer above or within the protective layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.