Multi-focal lens for bi-functional headlamp
US7357545B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2005 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Mar 17, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2102/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The headlamp assembly having low beam and high beam operation modes includes a light source, a reflector surface adapted to reflect light from the light source outward to a condenser lens positioned at a distance from the light source. An opaque shield is positioned between the light source and the condenser lens and is moveable between a first position, where a portion of the reflected light is blocked from reaching the condenser lens, and a second position, where substantially all of the reflected light is allowed to reach the condenser lens. The condenser lens has a first segment and a second segment wherein, when the opaque shield is in the first position, light is reflected almost entirely to the first segment of the condenser lens, and when the opaque shield is in the second position, light is reflected to the first and second segments of the condenser lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.