Discharge lamp assembly
US4771207A · kind A · utility
4Cited by
12References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1986 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Nov 13, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/366
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In double ended high pressure discharge lamps such as are used in sealed beam reflectors the leads pass through the reflector bowl close to the axis thereof and close to each other giving risk of flashover therebetween, particularly with the high voltages required for hot restarting. To reduce such effects at least one of the leads has a length forming part of a circle terminating at one end and a sleeve of insulating refractory material conforming generally to the same circle is fitted to at least part of the circular part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.