Motor vehicle headlight with a reflector for generating a wide beam, and with a striated cover lens
US6102558A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 1998 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | May 20, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor vehicle headlight comprising a light source, a reflector and a cover lens. The reflector generates a pre-formed light beam such that its modification by any optical elements on the cover lens is unnecessary. The cover lens receives, from at least a substantial part of the reflector, radiation having a mean angle of incidence in a horizontal plane which varies progressively with horizontal displacement over the cover lens. The cover lens includes a set of striations for lateral deflection of the light, with each striation having an individual angular distribution law which is determined by the orientation of the light from the reflector and by the lateral spreading characteristic of the striation. The spreading characteristics of the striations are determined in such a way that the aggregate angular distribution law of the different striations has a curve which is essentially flat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.