Discharge lamp lighting device to light a plurality of discharge lamps
US6784627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2003 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Jun 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/2827
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A discharge lamp lighting device comprises a plurality of discharge lamps, at least one reflector, and at least one leakage transformer. Each leakage transformer lights three discharge lamps and comprises: a first leakage transformer, which comprises a frame-core shaped substantially rectangular and two bar-cores disposed parallel to each other and orthogonal to two opposing sides of the frame-core with a predetermined gap from the frame-core, has two of primary and secondary windings structurally independent of each other, and which lights two discharge lamps of the three; and a second leakage transformer, which comprises a frame-core shaped substantially like square-U letter and a bar-core disposed orthogonal to two opposing sides of the frame-core with a predetermined gap from the frame-core, has one primary and secondary winding structurally independent of each other, and which lights remaining one discharge lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.