Discharge lamp emission material
US6157132A · kind A · utility
2Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Aug 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/825
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vapor discharge lamp comprised of an arc tube containing an ionizable medium, a first electrode electrically connected to a first in lead conductor, and a second electrode electrically connected to a second in lead conductor, said first and said second electrode pairs being positioned to create an arc discharge therebetween, an electron emissive material disposed on at least one of said electrodes, said electron emissive material being Ba.sub.4 Al.sub.2 O.sub.7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.