Image reading apparatus
US7041954B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2003 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Jun 19, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/193
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A reduction optical system including a lens 12 and a mirror 13, a CCD image sensor 11 and a frame including a frame member 4 for accommodating the reduction optical system and the CCD image sensor are integrated to constitute an image reading unit 2, and the unit 2 is covered with a cover member 1. A lamp 3 is provided on the cover member 1 and spatially isolated from the inner space of the unit 2. A slit 16 of the cover member 1 is closed by a transparent member 10. The lamp 3 emits the light 15a onto a document 17 on a document setting glass 18, and the reflected light 15b from the document 17 enters the CCD image sensor 11 through the transparent member 10, slit 16, slit 4′, mirror 13 and the lens 12 and is converted into electrical information, thereby reading image information of the document 17.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.