Low pressure discharge lamp with end-of-life structure
US6653781B2 · kind B2 · utility
0Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Aug 3, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low pressure arc discharge lamp with an end-of-life structure is described. The lamp has a discharge tube with sealed ends, and the sealed ends contain a filament for forming a discharge arc. The filament is supported by lead-in wires. The discharge lamp further comprises a connecting element made of an insulating material which transversely connects the lead-in wires within the discharge tube. The transverse dimension of the connecting element is chosen so as not to allow the discharge arc beyond the connecting element upon end-of-life of the discharge lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.