Headlamp having LED light sources
US7651252B2 · kind B2 · utility
1Cited by
3References
6Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Sep 17, 2007 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Sep 17, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Provided is a lamp unit using light-emitting-diode (LED) light sources, more particularly, a lamp unit using LED light sources which can generate a low beam and a high beam using LED light sources. The lamp unit includes a first LED light source unit which includes a first row of LED light sources; a second LED light source unit which includes a second row of LED light sources that is disposed below the first row of LED light sources; and a reflection plate which comprises a reflection surface that projects a low beam or a high beam upon turning on or off the first or second LED light source unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.