Elliptical headlamp with an attenuated cut-off
US6015220A · kind A · utility
6Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 1998 |
| Grant date | Jan 18, 2000 |
| Priority date | — |
| Expiry date | Oct 13, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2102/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a headlamp for an automobile vehicle comprising an elliptical reflector, a light source positioned in a region of the first focus of the reflector, a lens, the focus of which is in a region of the second focus of the reflector, and a mask interposed between the reflector and the lens to effect a cut-off of the light beam emitted. A mirror is located in front of the mask and adapted to return direct light rays emitted by the light source onto the front face of the mask which thereby diffuses them towards the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.