Metal vapor lamp starting and operating apparatus
US4647819A · kind A · utility
4Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 1985 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Jan 16, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low wattage metal vapor discharge lamp starting and operating apparatus includes an inductive ballast connected to one of a pair of terminals connectable to a low voltage source, a metal vapor discharge lamp coupled to the ballast and to the other one of the pair of lamp terminals and a non-linear dielectric element shunting the discharge lamp with the ballast and non-linear dielectric element providing a potential within about 600 usec of current reversal of the source voltage in an amount sufficient to initiate operation of the discharge lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.