Dipped headlamp for motor vehicles
US4797797A · kind A · utility
7Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1987 |
| Grant date | Jan 10, 1989 |
| Priority date | — |
| Expiry date | Jun 25, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S41/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dipped headlamp for motor vehicles comprising a bulb, a reflector and closure glass placed in front of the reflector and bulb. The bulb is an axial filament bulb without a masking cup. The reflector comprises a reflecting surface without any discontinuity and suitable for forming images of the filament with all points of the image being situated below a horizontal plane. Correction means for angularly displacing said images upwardly to raise them to level of the two horizontal masking half-planes comprise prisms in the closure glass or side sections of the reflector which are tilted upwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.