Negative glow discharge lamp with fill containing cesium or sodium
US5266864A · kind A · utility
1Cited by
18References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Sep 18, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A negative glow discharge lamp having improved efficacy enabled by reducing the anode work function by the introduction of a metal-based gas into the lamp envelope for absorption on the anode. The metal-based gas is preferably cesium but may also, for example, be sodium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.