Patent · US Expired

High brightness, low wattage, high pressure, metal vapor discharge lamp

US4308483A · kind A · utility

10Cited by
2References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 24, 1980
Grant dateDec 29, 1981
Priority date
Expiry dateMar 24, 2000

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J61/18
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A single ended, short arc, low wattage, high pressure, metal vapor discharge lamp is electrode stabilized and employs arc constrictors selected from the group of lanthanides, actinides and thorium to provide a brightness of 175,000 cd/in.sup.2 when operated at 75 watts.

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