Lamp assembly
US5083245A · kind A · utility
9Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1990 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Nov 29, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2102/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vehicle headlamp assembly for producing a passing beam pattern has a paraboloidal or divergent ellipsoidal reflector with a focus. A bulb filament is disposed completely behind the focus and has no light shield interposed between the filament and the reflector so that a divergent light beam is reflected off the reflector. A lens element has prism portions (A to C) which refract light passing therethrough downwardly to produce the required light beam pattern .
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.