Discharge lamp and lighting equipment
US4321506A · kind A · utility
5Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1979 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | Dec 18, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A discharge lamp comprises a high pressure arc tube for high pressure and a low pressure arc tube for low pressure which is electrically connected in parallel to said high pressure arc tube in an outer tube. A lighting equipment comprises a high pressure arc tube for high pressure discharge and a low pressure arc tube for low pressure which is electrically connected in parallel to said high pressure arc tube; and a high frequency lighting starter having 1 KHz to 100 KHz for starting the discharge of said high pressure arc tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.