Patent · US Expired

Arc lamp

US6274970A · kind A · utility

11Cited by
11References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 30, 1997
Grant dateAug 14, 2001
Priority date
Expiry dateDec 30, 2017

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J61/40
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An arc lamp includes a housing; an inert gas in the housing; a pair of spaced electrodes in the housing for establishing an arc in the gas to generate a radiation output; a window in the housing for transmitting forward radiation generated by the arc; and a spherical reflector on the opposite side of the electrodes from the window and having its center disposed in the arc for redirecting rearward radiation through the center to add to the forward radiation transmitted through the window.

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