Discharge lamp device for vehicle
US6583570B1 · kind B1 · utility
8Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2000 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Aug 30, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A discharge lamp device for a vehicle includes a lighting circuit for performing lighting controls of a discharge lamp for high beam and a discharge lamp for low beam, both lamps having the same rating. The lighting circuit controls the power supply such that the electrical power input when the discharge lamp for high beam is lighted is greater than the electrical power input when the discharge lamp for low beam is lighted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.