Image scanning apparatus
US5140443A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Jul 24, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/193
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for scanning an image, comprising a main unit body casing, a first original platen having a transparent surface on which a light-reflective original is placed, a second original platen movable in a horizontal direction inside the main unit body casing upon which platen a light-transmissive original is placed, a light source that irradiates light to the first and second original platens, an image sensor, and an optical apparatus disposed inside the body casing, and which respectively passes reflected light from the original placed on the first original platen and light transmitted through the original placed on the second original platen to the image sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.