Patent · US Expired

Electron source with microtip emissive cathodes

US5194780A · kind A · utility

167Cited by
8References
17Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 31, 1991
Grant dateMar 16, 1993
Priority date
Expiry dateMay 31, 2011

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J2201/319
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

Electron source with microtip emissive cathodes having grating-like electrodes. These electrodes can either be cathode conductors (5) or grids (10). Specific application to the excitation of a display screen.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.