Surface illumination unit and transparent original reading apparatus
US7852525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Feb 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0404
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided an image reading apparatus that can read a plurality of images without troublesome operations by a user, in which a small-size light source with a small electric power consumption is used as an illumination light source used for reading an image of a transparent original. A surface illumination light source having a size large enough to illuminate one image among a plurality of images included in a transparent original is moved sequentially to positions at which the illumination light source can illuminate the respective images. Each image is read while the illumination light source is kept stationary at the position of the image. In addition, at the position of each image, the transparent original is pressed against an original table of the image reading apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.