Lighting system with a high intensity discharge lamp
US6590350B1 · kind B1 · utility
6Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 9, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Jul 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting system (1) having a high intensity discharge lamp (16) mounted replaceably in a holder (25) which connects to an electronic control (8) which includes a variable frequency generator (10), a joint operating circuit extends from the lamp to the control; the control is arranged to sweep over a predetermined range of frequencies to produce by means of a resonant circuit which includes in the circuit (22) capacitance (12, 13, 21) which is at least partly in or on the lamp. Removal of the lamp from the system prevents the production of the resonant high voltage ensuring improved safety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.