Non-PWM vehicle lamp dimming arrangement
US7482763B2 · kind B2 · utility
15Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2006 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Aug 6, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This invention provides an arrangement for selectively varying the illumination level of an interior light source in a vehicle. The arrangement includes supplying a current to at least one interior light source to achieve a predetermined level of illumination, and reducing the level of illumination via a shunt arrangement in response to detection of a nighttime condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.