Intimate contact starting aid for arc lamps
US4445073A · kind A · utility
9Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1982 |
| Grant date | Apr 24, 1984 |
| Priority date | — |
| Expiry date | Mar 22, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/544
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high pressure sodium discharge lamp employs a starting aid allowing the use of increased xenon pressure for higher efficacy. The starting aid is positioned far enough from the ends of the electrodes so that end blackening does not attenuate the starting pulse and render the lamps impossible to start after they have been aged over 100 hours.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.