Patent · US Expired

Electrodes and lamps

US5880559A · kind A · utility

10Cited by
5References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 16, 1997
Grant dateMar 9, 1999
Priority date
Expiry dateMay 16, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J61/0677
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A cold cathode electrode for a discharge lamp has a metal substrate supporting a layer of diamond, so as to increase the electron yield of the electrode. The substrate may be a helical nickel wire with a layer of diamond forming it into a continuous tube.

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