Vehicle headlight with reflective mask
US5975731A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Jul 9, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/335
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor vehicle headlight comprises a reflector, a bulb, a glass, and a direct light mask provided in front of the bulb and mounted on the reflector by at least one generally vertical bracket. The reflector has a reflective surface capable of generating by itself a beam whose light is distributed widthwise in a homogeneous manner, between a zero inclination and a maximum inclination. The reflector has two lateral zones delimited by axial vertical limit-planes passing in the vicinity of the edges of the bracket or brackets, the reflective surfaces of which are such that the radiation changes progressively, from these limit-planes, between an essentially zero horizontal deviation and a divergent horizontal deviation, and a central zone situated between the said limit-planes and capable of directing a substantial part of the radiation away from the transition zones constituted by the edges of the bracket or brackets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.