Optical reader, image reader and image forming device
US8253989B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Jan 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/03145
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical reader which reads image information on an original document by moving to the original document includes an illumination unit having at least one light source arranged on a substrate and illuminating the original document, a plurality of mirrors reflecting reflection light from the original document, a focusing lens focusing the reflection light from the original document reflected by the mirrors, and a photoelectric conversion element arranged in a focusing position of the focusing lens, a normal direction of an emission surface of the light source and a normal direction of a light-receiving surface of the photoelectric conversion element are the same direction, an original document reading position is set near an end portion of the optical reader in the normal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.