Image scanner
US5900616A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Jan 31, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/02485
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image scanner is provided which is capable of preventing decrease in image contrast and improving the reading accuracy and quality of color images to a greater extent. An image scanner includes a unit case having an opening formed on one end surface thereof; light-source lamps and light-source lenses which are disposed in the inner portion of the opening of the unit case in such a manner as to face the opening; holding plates which are disposed in the inner portion of the opening of the unit case and which have formed therein slits for extending the terminals of the light-source lamps to the inside of the unit case; and CCD sensors, disposed at the end portion of the inside of the unit case on the side opposite to the opening, for reading an image of the original document by receiving, via a lens unit, light which is radiated onto a given original document placed near the opening from the light-source lamps via the light-source lenses and reflected from this original document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.