Elliptical headlamp including a secondary optical system
US6776513B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Sep 24, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2103/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention proposes a motor-vehicle headlamp (10), of the type including a main optical system (23) which comprises, arranged from back to front overall along a main optical axis (A—A), a main light source (16), a main reflector (14) of the elliptical type, and a converging main lens (18),characterised in that it includes a secondary optical system (36) comprising:a secondary light source (48) which is arranged behind the main lens (18) and off the path of the light rays emitted by the main light source (16);and an optical distribution element (42) which is interposed between the secondary light source (48) and the exit surface (19) of the main lens (18), in such a way as to form, at the exit from the main lens (18), a secondary regulatory beam for indicating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.