Total contact type photoelectric conversion device and optical reader using the same
US4805032A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1988 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Apr 14, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/0313
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A total contact type photoelectric conversion device comprises a substrate having an optically transparent portion, a plurality of photoelectric conversion elements formed in a line on the substrate, and a cover layer covering the plurality of the photoelectric conversion elements and having a roller load region within which the cover layer is to make contact with a sheet partially wrapped around a peripheral surface of a roller for feeding the sheet in a sub-scanning direction. The plurality of photoelectric conversion elements are aligned in a main scanning direction perpendicular to the sub-scanning direction and are located outside the roller load region. Therefore, incident light passing through the device is reflected on a position on the sheet outside the roller load region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.