LED projector headlamps using single or multi-faceted lenses
US7563008B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2006 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Jan 16, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A condenser lens and a headlamp assembly employing the condenser lens improves control over the beam spread characteristics, while at the same time reduces the package size of the headlamp assembly. The condenser lens is provided for a projector-type headlamp assembly having a light source emitting light which is projected longitudinally downstream in front of a motor vehicle. The condenser lens generally includes a main body of light transmitting material. The main body defines a first surface receiving light from the light source and a second surface emitting the light. The second surface has at least one facet structured to spread the light and provide a predetermined beam pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.