Elliptical headlamp with enlarged illuminating area
US6155702A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Nov 3, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/295
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor vehicle headlamp comprises an ellipsoidal reflector with two focus regions, a light source in the region of the first focus and a convergent lens focused on the region of the second focus. At least one optical plate exposed to light emitted directly by the light source includes an optical processing arrangement which returns at least a part of the direct light into the illumination field of the headlamp. An intermediate framework part fixed to the reflector is provided between the reflector and the lens and the intermediate part includes an arrangement for fixing the optical plate. Applications include elliptical headlamps with an enlarged illuminating area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.