Transparency adapter for flatbed scanners
US5652665A · kind A · utility
14Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1995 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Sep 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0418
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A transparent adapter hinged to a flatbed scanner for the scanning of a transparency or negative, including a hot cathode-ray tube to provide light, a refractor mounted around the hot cathode-ray tube to refract light from the hot cathode-ray tube onto a document, for permitting the image of the document to be picked up by a charge-coupled device in the optical scanner, and to prevent light from being directly projected by the hot cathode-ray tube onto the document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.