Multiple head optical scanner
US4473746A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1981 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Jul 30, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multiple-head optical scanner includes a plurality of read heads for reading a column of video information at a scanning window. Each read head includes a photosensor array and a lens assembly. The lens assembly focuses the light flux reflected from a segment of the scanning window onto the photosensor array. The photosensor array converts the reflected light flux into electrical signals. The optical axes of adjacent read heads are aligned to intersect the document plane at the scanning window at different angles. In addition, the segment scanned by each read head overlaps a portion of the segment scanned by its adjacent read head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.