Discharge lamp lighting device
US6066921A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1997 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Jan 29, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A discharge lamp lighting device comprising a lamp socket for connecting the discharge lamp; a stabilizing circuit connected to the power source and outputting a voltage to the lamp socket; a starting circuit connected between the stabilizing circuit and the lamp socket, and activated before the discharge lamp begins discharging to generate a high voltage required to start discharging, and deactivated after discharging begins; and a means for disabling the starting circuit when the discharge lamp is not installed in response to the installation or non-installation of the discharge lamp to the lamp socket. Preferably, the starting circuit is integrated with the lamp socket, thus forming a lamp socket unit comprising a starting circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.