Automotive headlamp having improved bright/dark cutoff
US8471447B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 2009 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Aug 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
It is provided a lamp (12) for an automotive headlamp (10), comprising a filament coil (14) for emitting light (22) and a nominal alignment axis (32) for aligning the filament coil (14) such, that the filament coil (14) is positioned in the middle of an allowable tolerance box wherein the filament coil (14) is arranged shifted to the nominal alignment axis (32). Due to the shifted arrangement of the filament coil (14) the flexibility given by the allowable tolerance may be used for positioning the filament coil (14) such, that the projected image (18) of the filament coil (14) is projected nearer to the bright/dark-cutoff (40) without blinding oncoming traffic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.